View AAT2610-12_8377012.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

1 general description the aat2610 is a highly integrated power management solution specifically suited for digital still camera (dsc) systems, featuring seven dc-dc switching regulators for maximum operating efficiency. the input operating voltage range is 1.6 to 5.5v, making the device an ideal solution for 1-cell li-ion batteries, 2-cell alkaline batteries, and usb and regulated ac-dc wall adapters. all seven dc-dc switching regulators fea - ture high efficiency light load operating mode to extend battery life while in low power standby state. three different dc-dc building blocks provide maximum design flexibility: a boost (step-up) dc-dc controller with an output voltage range of 3.0v to 5.5v and a cur - rent mode control buck (step-down) or boost (step-up) dc-dc controller with an output voltage range of 2.5v to the step-up converter (su) output voltage and buck out - put range of 0.6v to v in . dual current mode control syn - chronous buck regulators provide low voltage, low noise outputs required for system logic and memory. output voltage range is 0.6v to v in . the auxiliary 1 boost (step- up) is ideally suited for lcd backlight and can drive 1-6 white leds up to a maximum of 30ma with 10% accu - racy. pwm input controls led dimming across the fre - quency range from 10% to 100% duty cycle. the inte - grated ovp and scf feature protects the device from open-circuit led conditions. the auxiliary 2 boost (step-up) and auxiliary 3 buck- boost (inverting) output provide low noise (30mvpp) +15v and -7.5v outputs for ccd loads. an expensive transformer is not required. no external mosfets and low profile tqfn55-40l pack - age are ideal to save space for dsc solution. integrated, low r ds(on) power mosfets provide output voltages from 0.6v to 16vdc and an inverting output up to -10v. the high switching frequency ensures small external filtering components. internal compensation is provided for opti - mum transient performance and minimum application design effort. features ? input voltage range 1.6 to 5.5v ? 1-cell li-ion, 2-cell alkaline ? adapter or usb inputs ? 7 channel up to 96% high efficiency dc/dcs ? adjustable output ? 4 channel synchronous rectification ? light load mode for high efficiency ? <1a total quiescient current ? current mode control ? fast, stable transient response ? no external compensation ? current limit for internal mosfet protection ? high frequency 1.5mhz system clock ? high voltage series led driver ? 1 to 6 white leds ? up to maximum 30ma led current ? external schottky diode ? 10% accuracy current sink ? integrated ovp ? pwm dimming: 1k to 30khz, 10 to 100% duty cycle ? step-up and inverting outputs for ccd ? low noise outputs ? transformerless inverter output ? flexible sequencing implementation ? independent enable control ? 10ms pre-programmed buck or boost delay ? integrated soft-start ? over-voltage and over-temperature protection ? pb-free tqfn55-40l package ? temperature range: -40c to +85c applications ? dscs and dvcs ? mp3 players ? pmp systempower aa t2610 da ta sheet se ven-channel pmu for digital still came ra s skyworks solutions, inc. ? phone [781] 376-3000 ? fax [781] 376-3100 ? sales@skyworksinc.com ? www.skyworksinc.com 202208a ? skyworks proprietary information ? products and product information are subject to change without notice. ? july 25, 2012
2 typical applications st ep- up / by pas s c ont ro l v sd 1 2. 5v , 200 ma v sd 2 1. 8v , 200 ma st ep - do wn c ont ro l st ep- do wn c ont ro l i/ o, c ont ro l os c (1 .5 mh z) ot f bsd 2 l xsd 2 pvsd 2 f bsd 1 l xsd 1 pvsd 1 /s eq lx m pvm l xsu vi n 2.2 h 1.8 h 2.5 h v su 4.7 f 0603 59.0 k 118 k 4.7 f 0603 187 k 59.0 k fb m pv 22 f 0805 fb su +v bat t 1 li -i on ce ll (3 .3 v- 4. 2v ) +v bat t +v bat t v m 3. 3v , 150 ma 3.3 h 4. 7 f 0603 267 k 59.0 k su sd en su en m en sd 1 en sd 2 sc f v su 5v , 920 ma st ep - up / do wn c ont ro l v su v au x_l3 -7 .5 v, 20 ma pvl 3 fb l3 4.7 h vr ef 3 4.7 f/ 10 v 0603 59.0 k 732k st ep-u p c ont ro l lx l3 4.7 h lx l2 fb l2 v au x_l2 15 v, 20 ma 59.0 k 1.42m +v batt st ep-u p c ont ro l 4.7 h lx l1 cs l1 ov l1 v au x_l1 16 v, 30 ma 59.0 k 1.54m st ep-u p c ont ro l & cu rrent si nk 2- 4w le d en l2 en l3 en l1 (d im mi ng ) pg su 4.7 f/ 25 v 0805 432 k 59.0 k pvsu 1 f 0603 pvl pg m pg sd 1 pg sd 2 pg lg nd 4.7 f 1 f 1 f 1 f 1 f/ 25 v 0603 +v bat t 1. single cell li-ion battery input, 5v motor. aa t2610 da ta sheet se ven-channel pmu for digital still came ra s skyworks solutions, inc. ? phone [781] 376-3000 ? fax [781] 376-3100 ? sales@skyworksinc.com ? www.skyworksinc.com 202208a ? skyworks proprietary information ? products and product information are subject to change without notice. ? july 25, 2012
3 step - up / bypass control v sd 1 2. 5v , 200 ma v sd 2 1. 8v , 200 ma step - down control step - down control i/o, contro l osc (1 .5 mhz) ot fbsd 2 lxsd 2 pvsd 2 fbsd 1 lxsd 1 pvsd 1 /seq lxm pvm lxsu vin 2.2 h 1. 8 h 2.5 h 4.7 f 0603 59 .0 k 118 k 4.7 f 0603 187 k 59 .0 k fbm pv 22 f 0805 fbsu +v batt v main 3. 3v , 150 ma 2.2 h 22 f 0805 267 k 59 .0 k susd scf v su 5v , 800 ma step - up / down control v aux_ l3 -7 .5 v, 20 ma pvl 3 fbl3 4. 7 h vref 3 4.7 f/ 10 v 0603 59 .0 k 732 k step - up control lxl3 4.7 h lxl2 fbl2 v aux_ l2 15 v, 20 ma 59 .0 k 1.42 m +v batt step - up control 4.7 h lxl1 csl1 ovl1 v aux_ l1 16 v, 30 ma 59 .0 k 1. 54 m step - up control & current sink 2- 4wle d enl3 enl2 enl1 (dimming) ensd2 ensd1 ensu enm pgsu 4. 7 f/25 v 0805 432 k 59 .0 k pvsu 1 f 0603 pvl pgmp gsd2 pgsd1 pglg nd 4.7 f 1 f 1 f 1 f 2 alk cell (1 .6 -3 .3 v) 2.2 f 0402 +v batt v su 2. dual cell alkaline battery input, 5v motor. aa t2610 da ta sheet se ven-channel pmu for digital still came ra s skyworks solutions, inc. ? phone [781] 376-3000 ? fax [781] 376-3100 ? sales@skyworksinc.com ? www.skyworksinc.com 202208a ? skyworks proprietary information ? products and product information are subject to change without notice. ? july 25, 2012
4 pin descriptions number symbol description 1 fbl2 auxiliary 2 (aux_l2) boost converter feedback pin. this pin is high impedance when the aux2 controller is disabled. connect an external resistor divider between this pin and aux2 output and gnd to set the aux2 output voltage with 0.6v. 2 fbsd1 step-down 1 (sd1) buck converter feedback pin. this pin is high impedance when the sd1 controller is disabled. connect an external resistor divider between this pin and sd1 output and gnd to set the sd1 output voltage with 0.6v. 3 pvsd1 step-down 1 (sd1) buck converter input pin. bypass to gnd plane with a 1f ceramic capacitor. 4 lxsd1 step-down 1 (sd1) buck converter switching node. connect this pin to an external inductor. this pin is high impedance when the sd1 converter is disabled. 5 pgsd1 step-down 1 (sd1) buck converter power ground. tie this pin to ground plane. 6 pgm main (sud) converter power ground. tie this pin to ground plane. 7 lxm if is susd pulled high, the main is a boost (step-up) converter and the pin functions as the main converter switching node. in this case, connect this pin to the external inductor. if susd is pulled low, the main is a buck (step-down) converter and the pin functions as the main converter switching node. in this case, connect this pin to the external inductor. in either case, lxm is high impedance when the main converter is disabled. 8 pvm if susd is pulled high, the main is a boost (step-up) converter and this pin functions as the main converter output. in this case, connect a ceramic capacitor to gnd plane from this pin. if susd is pulled low, the main is a buck (step-down) converter and this pin functions as the main converter input voltage. in this case, connect this pin to the external inductor. 9 fbm main (m) buck or boost converter feedback pin. this pin is high impedance when the main controller is disabled. connect an external resistor divider between this pin and main output and gnd to set the main output voltage with 0.6v. 10 seq main (m) converter open-drain output sequencing pin. this pin is internally pulled low after both sd1 and sd2 converters completed soft-start and achieved output regulation. this pin can provide gate drive to external p-channel mosfets which disconnect the load during start-up. this pin is open-circuit during shut-down, overload or during ot trip conditions. 11 susd main converter confguration pin. tie this pin to high to confgure the main output as a boost (step-up) converter, or tie this pin to low to confgure the main output as a buck (step-down) converter. this pin cannot be toggled during operation. 12 enl3 auxiliary 3 (aux_l3) buck-boost (inverting) converter active high enable pin. the aux_l3 output remains disabled until 2,048 clock cycles after step-up (su) output has reached regulation. the pin has an inter - nal 330k pull-down resistor. 13 enl2 auxiliary 2 (aux_l2) boost converter active high enable pin. the aux_l2 output remains disabled until 2,048 clock cycles after step-up (su) output has reached regulation. the pin has an internal 330k pull- down resistor. 1 4 enl1 auxiliary 1 (aux_l1) boost converter active high enable pin. the main output remains disabled until 2,048 clock cycles after step-up (su) output has reached regulation. the pin has an internal 330k pull-down resistor. this pin also functions as pwm input for the led dimming feature. the input pwm frequency is logic level high and low within 1khz to 30khz frequency. pwm dimming input duty cycle (on-time/total- time) range is from 10% to 100%. 15 vin input voltage. tie this pin to the input of step-up (su). 16 gnd chip ground. tie this pin to ground plane. 17 pv power input for the pmic. connect this pin directly to the pvsu pin. 18 ensd2 step-down 2 (sd2) buck converter active high enable pin. the sd2 output remains disabled until 2,048 clock cycles after step-up (su) output has reached regulation. this pin has an internal 330k pull-down resistor. 19 ensd1 step-down 1 (sd1) buck converter active high enable pin. the sd1 output remains disabled until 2,048 clock cycles after step-up (su) output has reached regulation. this pin has an internal 330k pull-down resistor. 20 enm main buck or boost converter active high enable pin. however, the main output remains disabled until 2,048 clock cycles after step-up (su) output has reached regulation. this pin has an internal 330k pull- down resistor. 21 ensu step-up (su) boost converter active high enable pin. this pin has an internal 330k pull-down resistor. aa t2610 da ta sheet se ven-channel pmu for digital still came ra s skyworks solutions, inc. ? phone [781] 376-3000 ? fax [781] 376-3100 ? sales@skyworksinc.com ? www.skyworksinc.com 202208a ? skyworks proprietary information ? products and product information are subject to change without notice. ? july 25, 2012
5 pin descriptions number symbol description 22 scf open drain, active low, short circuit fag output. scf goes open when overload protection or aux_l1 open circuit occur during abnormal operation or during startup. scf can drive p-channel mosfets to disconnect a given output from the load. 23 fbsu step-up (su) boost converter feedback pin. this pin is high impedance when the su controller is disabled. connect an external resistor divider between this pin and su output and gnd to set the su output voltage with 0.6v. 24 pvsu step-up (su) boost converter input. 25 lxsu step-up (su) boost converter switching node. connect this pin to the external inductor and anode of the schottky rectifying diode. this pin is high impedance when the su converter is disabled. 26 pgsu step-up (su) boost converter power ground. tie this pin to ground plane. 27 pgsd2 step-down 2 (sd2) buck converter power ground pin. tie this pin to ground plane. 28 lxsd2 step-down 2 (sd2) buck converter switching node. connect this pin to an external inductor. this pin is high impedance when the sd2 converter is disabled. 29 pvsd2 step-down 2 (sd2) buck converter input pin. bypass this pin to gnd plane with a 1f ceramic capacitor. 30 fbsd2 step-down 2 (sd2) buck converter feedback pin. this pin is high impedance when the sd2 controller is disabled. connect an external resistor divider between this pin and sd2 output and gnd to set the sd2 output voltage with 0.6v. 31 vref3 auxiliary 3 (aux_l3) buck/boost (inverting) reference voltage pin. bypass vref3 to gnd with a 1f or greater capacitor. connect an external resistor divider between this pin and l3 output and fbl with 0.6v. 32 fbl3 auxiliary 3 (aux_l3) boost converter feedback pin. the pin is high impedance when the aux_l3 control - ler is disabled. connect an external resistor divider between this pin and aux_l3 output and vref3 pin to set the aux_l3 negative buck/boost (inverting) output voltage with 0v. 33 pvl3 auxiliary 3 (aux_l3) buck/boost (inverting) input node. connect this pin to the input ceramic capacitor. 34 lxl3 auxiliary 3 (aux_l3) buck/boost (inverting) switching node. connect this pin to the cathode of the exter - nal schottky diode and buck/boost inductor. 35 pvl power input for auxiliary (aux_l1, aux_l2, aux_l3) channels power fet driver. tie this pin to pvsu. 36 lxl2 auxiliary 2 (aux_l2) boost (step-up) switching node. connect this pin to the anode of the external schottky diode and boost inductor. 37 pgl power ground for auxiliary (aux_l1, aux_l2, aux_l3) channels power fet driver. tie this pin to ground plane. 38 lxl1 auxiliary 1 (aux_l1) boost (step-up) switching node. connect this pin to the anode of the external schottky diode and boost inductor. 39 csl1 auxiliary 1 (aux_l1) boost converter current sink pin. the pin is high impedance when the aux_l1 con - troller is disabled. connect this pin to the cathode of the bottom led in the string to ensure dc current fow. current level is programmed by the internal rset resistor from 1ma to 30ma. 40 ovl1 auxiliary 1 (aux_l1) boost (step-up) over-voltage protection pin. connect an external resistor divider be - tween this pin and aux_l1 output voltage and gnd to set the aux_l1 over-voltage threshold with 0.6v. ep exposed pad (bottom). connect to ground directly beneath the package for thermal dissipation. aa t2610 da ta sheet se ven-channel pmu for digital still came ra s skyworks solutions, inc. ? phone [781] 376-3000 ? fax [781] 376-3100 ? sales@skyworksinc.com ? www.skyworksinc.com 202208a ? skyworks proprietary information ? products and product information are subject to change without notice. ? july 25, 2012
6 pin configuration 1 3 2 5 4 6 1 3 2 5 4 6 fbl2 fbsd1 pvsd1 lxsd1 pgsd1 pgm 7 lxm 8 9 pvm fbm 10 seq 30 28 29 26 27 25 fbsd2 pvsd2 lxsd2 pgsd2 pgsu lxsu 24 pvsu 23 22 fbsu scf 21 ensu 18 16 17 20 19 15 enm ensd1 ensd2 pv gnd vin 14 enl1 13 12 enl2 enl3 11 susd 31 33 32 35 34 36 vref3 fbl3 pvl3 lxl3 pvl lxl2 37 pgl 38 39 lxl1 csl1 40 ovl1 absolute maximum ratings 1 symbol description value units all other pins to gnd/pgnd -0.3 to 6.0 v voltage from lxl1, lxl2 to gnd/pgnd -0.3 to 30.0 v voltage from lxl3 to gnd/pgnd -8.0 to 6.0 v operating junction temperature range -40 to 150 c maximum soldering temperature (at leads, 10 sec) 300 c thermal information 2 symbol description value units p d maximum power dissipation 3 2.0 w ja maximum thermal resistance 25.0 c/w 1. stresses above those listed in absolute maximum ratings may cause permanent damage to the device. functional operation at conditions other than the operating conditions specified is not implied. only one absolute maximum rating should be applied at any one time. 2. mounted on 1.6mm thick fr4 circuit board. 3. derate 40mw/c above 2c ambient temperature aa t2610 da ta sheet se ven-channel pmu for digital still came ra s skyworks solutions, inc. ? phone [781] 376-3000 ? fax [781] 376-3100 ? sales@skyworksinc.com ? www.skyworksinc.com 202208a ? skyworks proprietary information ? products and product information are subject to change without notice. ? july 25, 2012
7 electrical characteristics 1 unless otherwise noted v pvsu = v pvm = v pvsd1 = v pvsd2 = 3.6v, t a =-40 c to +85 c. symbol description conditions min typ max units general v in operating input voltage range i load )xoo/rdgvhh7deohvdqg 1.6 5.5 v i shdn shutdown supply current en_su = en_m = en_sd1 = en_sd2 = 0v, en_dl1 = en_dl2 = en_dl3 = 0v 0.01 10 a i q quiescient current into pv pin with su enabled en_su = 3.6v, fbsu = 1.5v (does not include switching losses) 300 450 a quiescient current into pv pin with su/sd1/sd2 enabled en_su = en_sd1 = en_sd2 = 3.6v, fbsu = fbsd1 = fbsd2 = 1.5v, en_m = en_dl1 = en_ dl2 = en_dl3 = 0v (does not include switching losses) 600 900 a quiescient current into pv pin with su/sud enabled en_su = en_m = 3.6v, fbsu = fbsud = 1.5v, en_sd1 = en_sd2 = en_dl1 = en_dl2 = en_ dl3 = 0 (does not include switching losses) 450 700 a quiescient current into pv pin with en_su = en_dl1 = 3.6v, fbsu = fbl1 = 1.5v, en_m = en_sd1 = en_sd2 = en_dl1 = en_dl2 = en_dl3 = 0(does not include switching losses) 400 650 a oscillator f osc oscillator frequency range 1.2 1.5 1.8 mhz su dc-dc boost (step-up) converter v uvlo(su) su under-voltage threshold rising edge 1.6 1.8 2.0 v v uvlo(su),hys su under-voltage threshold hysteresis falling edge 400 mv v out(su) step-up output voltage range 3.0 5.5 v v in(bp-enter) enter bypass mode v in rising edge 4.625 4.750 4.900 v v in-hys(bp-exit) exit bypass mode - hysteresis v in falling edge 100 112 125 mv t delay start-up delay of susd, sd1, sd2, aux_l1, aux_l2, aux_ l3 after vsu in regulation 512 osc cyc v fbsu fbsu reference voltage t a = 25c 0.585 0.600 0.615 v i mode(su) su light load mode current threshold 200 ma d max(su) step-up maximum duty cycle 9 pvsu 99 fbsu = 0.60v 85 95 % i leak(fbsu) fbsu pin leakage current v fbsu = 0.60v -100 0.01 +100 na i leak(pvsu) pvsu pin leakage current v lxsu = 0v, v pvsu = 5.5v 0.1 5 a i leak(lxsu) lxsu pin leakage current v lxsu = v out(su) = 5.5v 0.1 5 a r dson n-channel 50 p p-channel 130 p i limit n-channel current limit 4.1 5.5 a i off p-channel turn-off current 20 ma i startup startup current limit v pvsu = 1.8v 1300 ma t off(startup) startup off-time v pvsu = 1.8v 700 ns f osc(startup) startup frequency v pvsu = 1.8v 200 khz 1. the aat2610 is guaranteed to meet performance specifications over the -40c to +85c operating temperature range and is assured by design, characterization, and correla - tion with statistical process controls. aa t2610 da ta sheet se ven-channel pmu for digital still came ra s skyworks solutions, inc. ? phone [781] 376-3000 ? fax [781] 376-3100 ? sales@skyworksinc.com ? www.skyworksinc.com 202208a ? skyworks proprietary information ? products and product information are subject to change without notice. ? july 25, 2012
8 electrical characteristics 1 unless otherwise noted v pvsu =v pvm = v pvsd1 = v pvsd2 =3.6v, t a =-40 c to +85 c. symbol description conditions min typ max units main dc-dc buck (step-down) or boost (step-up) converter v out(m) main output step-up voltage range v susd = v pvsu 3.0 5.5 v main output step-down voltage range v susd = gnd; v pvm must be greater than v out(m) 1.0 v in v v fbm fbm reference voltage t a = 25c 0.585 0.60 0.615 v i limit(m) step-up mode current limit v susd = v pvsu 1.5 1.75 a step-down mode current limit v susd = gnd 0.7 0.85 a i mode(m) step-up light load mode current thresh - old v susd = v pvsu 350 ma step-down light load mode current threshold v susd = gnd 200 ma d max(m) step-up maximum duty cycle 9 in 99 susd = v pvsu 80 95 % step-down maximum duty cycle 9 in 99 susd = gnd 100 i leak(fbm) fbm pin leakage current v fbsu = 0.6v -100 0.01 +100 na i leak(lxm) lxm pin leakage current v lxsu = v out(m) = 5.5v 0.1 5 a r dson n-channel 75 p p-channel 120 p i off(m) step-up mode n-channel turn-off current v susd = v pvsu 20 ma step-down mode n-channel turn-off current v susd = gnd 20 t soft-start soft-start interval 2,048 osc cyc t seq sequencing time delay sd1/sd2 regulation to v seq(l) transition 10,000 osc cyc i leak(seq) seq pin leakage current en_su = v pvsu , fbsu = 1.5v 0.1 1 a v seq(l) seq low output voltage 0.1ma into seq pin 0.01 0.1 v sd1/2 dc-dc step-down (buck) converters v out(sd1/sd2) sd1/sd2 step-down output voltage range 0.60 v in v v fb(sd1/sd2) fbsd1, fbsd2 reference voltage t a = 25c 0.585 0.60 0.615 v i limit(sd1/sd2) p-channel current limit 0.6 0.7 a i mode(sd1/sd2) sd1 light load mode current threshold 100 ma d max(sd1/sd2) maximum duty cycle 9 pvsu 99 sd1/2 = 0.60v 100 % i leak(fbsd1/sd2) fbsd1, fbsd2 pin leakage current v fbsd1/sd2 = 0.6v -100 0.01 +100 na i leak(lxsd1/sd2) lxsd1, lxsd2 pin leakage current v lxsd1/sd2 = 0 to 3.6v 0.1 5 a r dson(sd1) n-channel 500 p p-channel 650 p r dson(sd2) n-channel 250 p p-channel 450 p i off n-channel turn-off current 20 ma t softstart soft-start interval 2,048 osc cyc 1. the aat2610 is guaranteed to meet performance specifications over the -40c to +85c operating temperature range and is assured by design, characterization, and correla - tion with statistical process controls. aa t2610 da ta sheet se ven-channel pmu for digital still came ra s skyworks solutions, inc. ? phone [781] 376-3000 ? fax [781] 376-3100 ? sales@skyworksinc.com ? www.skyworksinc.com 202208a ? skyworks proprietary information ? products and product information are subject to change without notice. ? july 25, 2012
9 electrical characteristics 1 unless otherwise noted v pvsu =v pvm = v pvsd1 = v pvsd2 =3.6v, t a =-40 c to +85 c. symbol description conditions min typ max units aux l1/l2 dc-dc boost (step-up) converters v out(aux_l1/l2) aux_l1/l2 step-up output voltage range 2 5.0 20.0 v i csl1 csl1 current sink accuracy t a = 25c 27.0 30.0 33.0 ma v fbl2 fbl2 reference voltage t a = 25c 0.585 0.60 0.615 v v ovl1 ovl1 reference voltage t a = 25c 0.585 0.60 0.615 v i limit(aux_l1) n-channel current limit 0.60 0.70 a i limit(aux_l2) n -channel current limit 0.60 0.70 a i mode(aux_l1/l2) aux_l1/l2 light load mode current threshold 70 ma d max(l1/l2) maximum duty cycle 95 % i leak(fbl2) fbl2 pin leakage current -100 0.01 +100 na r dson(aux_l1) n-channel 1000 p r dson(aux_l2) n-channel 1000 p t softstart(aux_l2) aux_l2 soft-start interval 2,048 osc cyc aux l3 dc-dc buck/boost (inverter) converters v ref3 ref3 reference voltage t a = 25c, i ref = 20a 0.585 0.60 0.615 v v fbl3 fbl3 inverter reference voltage t a = 25c -0.01 0.00 0.01 v i limit(aux_l3) p-channel current limit 1.5 a i mode(aux_l3) sd1 light load mode current threshold 100 ma i leak(ref3,fbl3) ref3, fbl3 pin leakage current -100 0.01 +100 na r dson p-channel 1000 p t softstart soft-start interval 2,048 osc cyc overload protection t delay( scf ) overload fault delay 100,000 osc cyc i leak( scf ) scf pin leakage current en_su = v pvsu , fbsu = 1.5v 0.1 1 a v l( scf ) scf low output voltage 0.1ma into scf pin 0.01 0.1 v thermal protection t sd over-temperature shutdown 140 c t hys over-temperature shutdown hysteresis 15 c 1. the aat2610 is guaranteed to meet performance specifications over the -40c to +85c operating temperature range and is assured by design, characterization, and correla - tion with statistical process controls. 2. the step-up converter operates in startup mode until this voltage is reached. do not apply full load current during startup. aa t2610 da ta sheet se ven-channel pmu for digital still came ra s skyworks solutions, inc. ? phone [781] 376-3000 ? fax [781] 376-3100 ? sales@skyworksinc.com ? www.skyworksinc.com 202208a ? skyworks proprietary information ? products and product information are subject to change without notice. ? july 25, 2012
10 electrical characteristics 1 unless otherwise noted v pvsu =v pvm = v pvsd1 = v pvsd2 =3.6v, t a =-40 c to +85 c. symbol description conditions min typ max units logic inputs v l(en_su) en_su logic low threshold 1.1v < v pvsu < 1.8v 0.2 v 99 pvsu < 2.5v 0.4 v 99 pvsu < 5.5v 0.5 v v h(en_su) en_su logic high threshold 1.1v < v pvsu < 1.8v (v pvsu - 0.2) v 1.8v < v pvsu < 5.5v 1.6 v v en_x(l) , v susd(l) en_x, susd logic low threshold 2.7v < v pvsu < 5.5v 0.5 v v en_x(h) , v susd(h) en_x, susd logic low threshold 2.7v < v pvsu < 5.5v 1.6 v i leak(susd) susd pin leakage current 0.1 1 a r enx enx input impedance 330 n t en_l1(l) disable low time dimming state: en low to led disable; 2.7v < v in < 5v 2 3 4 s t en_l1(h) enable high time dimming state: en high to led regulation; 2.7v < v in <5v 2 3 4 s t en_l1(dis-l) disable low time disables dimming state: soft- start enabled on subsequent en transition; 2.7v < v in < 5v 1000 1200 s 1. the aat2610 is guaranteed to meet performance specifications over the -40c to +85c operating temperature range and is assured by design, characterization, and correla - tion with statistical process controls. aa t2610 da ta sheet se ven-channel pmu for digital still came ra s skyworks solutions, inc. ? phone [781] 376-3000 ? fax [781] 376-3100 ? sales@skyworksinc.com ? www.skyworksinc.com 202208a ? skyworks proprietary information ? products and product information are subject to change without notice. ? july 25, 2012
11 typical characteristics su efficiency vs. output curren t (v su = 5v; l = 2.2h; c out = 22f) output current (ma) efficiency (% ) 1000 100 10 1 50 55 60 65 70 75 80 85 90 95 100 v bat = 2.0v v bat = 2.4v v bat = 2.7v v bat = 3.0v v bat = 3.3v v bat = 3.6v v bat = 3.8v v bat = 4.2v v bat = 5.0v msd efficiency vs. output curren t (v pvm = v bat ; v msd = 3.3v; l = 3.3h; c out = 4.7f) output current (ma) efficiency (% ) 30 11 0 100 1000 35 40 45 50 55 60 65 70 75 80 85 90 95 100 v bat = 3.3v v bat = 3.6v v bat = 3.8v v bat = 4.2v v bat = 5.0v msu efficiency vs. output curren t (v msu = 3.3v; l = 2.2h; c out = 10f) output current (ma) efficiency (% ) 11 0 100 1000 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 v bat = 2.0v v bat = 2.4v v bat = 2.7v v bat = 3.0v sd1 efficiency vs. output current (v pvsd1 = v bat ; v sd1 = 2.5v; l = 2.2h; c out = 10f) output current (ma) efficiency (% ) 11 0 100 1000 50 55 60 65 70 75 80 85 90 95 100 v bat = 3.3v v bat = 3.6v v bat = 3.8v v bat = 4.2v v bat = 5.0v sd2 efficiency vs. output current (v pvsd2 = v bat ; v sd2 = 1.8v; l = 2.2h; c out = 4.7f) output current (ma) efficiency (% ) 11 0 100 1000 50 55 60 65 70 75 80 85 90 95 100 v bat = 2.0v v bat = 2.4v v bat = 2.7v v bat = 3.0v v bat = 3.3v v bat = 3.6v v bat = 3.8v v bat = 4.2v v bat = 5.0v sd2 efficiency vs. output current (v sd2 = 1.2v; l = 2.2h; c out = 4.7f) output current (ma) efficiency (% ) 11 0 100 1000 50 55 60 65 70 75 80 85 90 95 v bat = 2.0v v bat = 2.4v v bat = 2.7v v bat = 3.0v v bat = 3.3v v bat = 3.6v v bat = 3.8v v bat = 4.2v v bat = 5.0v aa t2610 da ta sheet se ven-channel pmu for digital still came ra s skyworks solutions, inc. ? phone [781] 376-3000 ? fax [781] 376-3100 ? sales@skyworksinc.com ? www.skyworksinc.com 202208a ? skyworks proprietary information ? products and product information are subject to change without notice. ? july 25, 2012
12 typical characteristics aux1 efficiency vs. pwm duty cycle (4 wleds; l = 4.7h; c out = 1f; 10khz pwm control) led current (ma) efficiency (% ) 0 10 20 30 40 50 60 70 80 90 06 12 18 24 30 v bat = 2.0v v bat = 2.4v v bat = 2.7v v bat = 3.0v v bat = 3.6v v bat = 4.2v v bat = 5.0v aux2 efficiency vs. output current (v aux2 = +15v; l = 4.7h; c out = 4.7f) output current (ma) efficiency (% ) 11 0 100 40 45 50 55 60 65 70 75 80 85 90 v bat = 2.0v v bat = 2.4v v bat = 2.7v v bat = 3.0v v bat = 3.6v v bat = 4.2v v bat = 5.0v aux3 efficiency vs. output current (v aux3 = -7.5v; l = 4.7h; c out = 4.7f) load current (ma) efficiency (% ) 11 0 100 40 45 50 55 60 65 70 75 80 v bat = 2.0v v bat = 2.4v v bat = 2.7v v bat = 3.0v v bat = 3.6v v bat = 4.2v v bat = 5.0v aux1 pwm duty cycle vs. led current (4 wleds; l = 4.7h; c out = 1f; 10khz pwm control) duty cycle (% ) led current (ma) 02 04 06 08 0 100 0 5 10 15 20 25 30 v bat = 2.0v v bat = 2.4v v bat = 2.7v v bat = 3.0v v bat = 3.6v v bat = 4.2v v bat = 5.0v su load regulation vs. output curren t (v su = 5v; l = 2.2h; c out = 22f) load current (ma) load regulation (% ) 02 00 400 600 800 1000 1200 1400 1600 -0.050 -0.045 -0.040 -0.035 -0.030 -0.025 -0.020 -0.015 -0.010 -0.005 0.000 0.005 0.010 0.015 0.020 bypass mode v bat = 2.0v v bat = 2.4v v bat = 2.7v v bat = 3.0v v bat = 3.3v v bat = 3.6v v bat = 3.8v v bat = 4.2v v bat = 5.0v main sd load regulation vs. output curren t (v pvm = v bat ; v msd = 3.3v; l = 3.3h; c out = 4.7f) load current (ma) load regulation (% ) 05 0 100 150 200 250 300 350 400 -0.05 -0.04 -0.03 -0.02 -0.01 0.00 0.01 0.02 0.03 0.04 0.05 v bat = 3.3v v bat = 3.6v v bat = 3.8v v bat = 4.2v v bat = 5.0v dropout mode aa t2610 da ta sheet se ven-channel pmu for digital still came ra s skyworks solutions, inc. ? phone [781] 376-3000 ? fax [781] 376-3100 ? sales@skyworksinc.com ? www.skyworksinc.com 202208a ? skyworks proprietary information ? products and product information are subject to change without notice. ? july 25, 2012
13 typical characteristics main su load regulation vs. output curren t (v msu = 3.3v; l = 2.2h; c out = 10f) load current (ma) load regulation (% ) 05 0 100 150 200 250 300 350 400 -0.05 -0.04 -0.03 -0.02 -0.01 0.00 0.01 0.02 0.03 0.04 0.05 v bat = 2.0v v bat = 2.4v v bat = 2.7v v bat = 3.0v sd1 load regulation vs. output curren t (v pvsd1 = v bat ; v sd1 = 2.5v: l = 2.2h; c out = 10f) load current (ma) load regulation (% ) 05 0 100 150 200 250 300 350 400 -0.010 -0.008 -0.006 -0.004 -0.002 0.000 0.002 0.004 0.006 0.008 0.010 v bat = 3.3v v bat = 3.6v v bat = 3.8v v bat = 4.2v v bat = 5.0v sd2 load regulation vs. output curren t (v pvsd2 = v bat ; v sd2 = 1.8v: l = 2.2h; c out = 4.7f) load current (ma) load regulation (% ) 05 0 100 150 200 250 300 350 400 -0.010 -0.008 -0.006 -0.004 -0.002 0.000 0.002 0.004 0.006 0.008 0.010 v bat = 2.4v v bat = 3.0v v bat = 3.6v v bat = 4.2v v bat = 5.0v sd2 load regulation vs. output curren t (v sd2 = 1.2v: l = 2.2h; c out = 4.7f) load current (ma) load regulation (% ) 05 0 100 150 200 250 300 350 400 -0.010 -0.008 -0.006 -0.004 -0.002 0.000 0.002 0.004 0.006 0.008 0.010 v bat = 2.4v v bat = 3.0v v bat = 3.6v v bat = 4.2v v bat = 5.0v aux2 load regulation vs. output curren t (v aux2 = +15v; l = 4.7h; c out = 4.7f) load current (ma) load regulation (% ) 01 02 03 04 05 06 07 08 09 0 100 -0.010 -0.008 -0.006 -0.004 -0.002 0.000 0.002 0.004 0.006 0.008 0.010 v bat = 2.0v v bat = 2.4v v bat = 2.7v v bat = 3.0v v bat = 3.6v v bat = 4.2v v bat = 5.0v aux3 load regulation vs. output curren t (v aux3 = -7.5v; l = 4.7h; c out = 4.7f) load current (ma) load regulation (% ) 01 0 100 -2.0 -3.0 -1.0 0.0 1.0 2.0 3.0 v bat = 2.0v v bat = 2.4v v bat = 2.7v v bat = 3.0v v bat = 3.6v v bat = 4.2v v bat = 5.0v aa t2610 da ta sheet se ven-channel pmu for digital still came ra s skyworks solutions, inc. ? phone [781] 376-3000 ? fax [781] 376-3100 ? sales@skyworksinc.com ? www.skyworksinc.com 202208a ? skyworks proprietary information ? products and product information are subject to change without notice. ? july 25, 2012
14 typical characteristics su output ripple (v bat = 3.6v; v su = 5v; c out = 22f; 10ma load) time (10s/div) lxsu (5v/div) i inductor (500ma/div) v su (ac) (50mv/div) 0 0 0 su output ripple (v bat = 3.6v; v su = 5v; l = 2.2h; c out = 22f; 200ma load) time (400ns/div) lxsu (5v/div) i inductor (200ma/div) v su (ac) (10mv/div) 0 0 0 main su output ripple (v bat = 2.4v; v msu = 3.3v; l = 2.2h; c out = 10f; 10ma load) time (4s/div) lxm (2v/div) i inductor (500ma/div) v msu (ac) (20mv/div) 0 0 0 main su output ripple (v bat = 2.4v; v msu = 3.3v; l = 2.2h; c out = 10f; 200ma load) time (400ns/div) lxm (5v/div) i inductor (200ma/div) v msu (20mv/div) 0 0 0 main sd output ripple (v pvm = v bat = 4.2v; v msd = 3.3v; l = 3.3h; c out = 4.7f; 10ma load) time (4s/div) lxm (2v/div) i inductor (200ma/div) v msd (ac) (20mv/div) 0 0 0 main sd output ripple (v pvm = v bat = 4.2v; v msd = 3.3v; l = 3.3h; c out = 4.7f; 200ma load) time (4s/div) lxm (2v/div) i inductor (200ma/div) v msd (ac) (10mv/div) 0 0 0 aa t2610 da ta sheet se ven-channel pmu for digital still came ra s skyworks solutions, inc. ? phone [781] 376-3000 ? fax [781] 376-3100 ? sales@skyworksinc.com ? www.skyworksinc.com 202208a ? skyworks proprietary information ? products and product information are subject to change without notice. ? july 25, 2012
15 typical characteristics sd output ripple (v psd2 = v bat = 3.6v; v sd2 = 1.8v; l = 2.2h; c out = 4.7f; 10ma load) time (2s/div) lx (2v/div) i inductor (200ma/div) v sd2 (ac) (20mv/div) 0 0 0 sd output ripple (v pvsd2 = v bat = 3.6v; v sd2 = 1.8v; l = 2.2h; c out = 4.7f; 200ma load) time (800ns/div) lxsd2 (2v/div) i inductor (200ma/div) v sd2 (ac) (20mv/div) 0 0 0 aux1 output ripple (v bat = 3.6v; c out = 1f; l = 4.7h; 4 wled with 30ma led current) time (400ns/div) lxl1 (10v/div) i inductor (200ma/div) v aux1 (ac) (100mv/div) 0 0 0 aux2 output ripple (v bat = 3.6v; v aux2 = 15v; c out = 4.7f/25v; l = 4.7h; 20ma load) time (400ns/div) lxl2 (10v/div) i inductor (200ma/div) v aux2 (ac) (20mv/div) 0 0 0 aux3 output ripple (v bat = 3.6v; v aux3 = -7.5v; c out = 4.7f/10v; l = 4.7h; 20ma load) time (400ns/div) lxl3 (10v/div) i inductor (100ma/div) v aux3 (ac) (10mv/div) 0 0 0 su channel load transient respons e (v bat = 3.6v; v su = 5v; l = 2.2h; c out = 22f; transient slew rate 0.1a/s) time (40s/div) i out (200ma/div) v su (ac) (200mv/div) 200ma 500ma aa t2610 da ta sheet se ven-channel pmu for digital still came ra s skyworks solutions, inc. ? phone [781] 376-3000 ? fax [781] 376-3100 ? sales@skyworksinc.com ? www.skyworksinc.com 202208a ? skyworks proprietary information ? products and product information are subject to change without notice. ? july 25, 2012
16 typical characteristics main sd load transient respons e (v bat = v pvm = 3.6v; v msd = 3.3v; l = 3.3h; c out = 4.7f; transient slew rate = 0.1a/s) time (40s/div) i out (100ma/div) v msd (50mv/div) 100ma 200ma sd1 load transient response (v bat = v pvsd1 = 3.6v; v sd1 = 2.5v; l = 2.2h; c out = 10f; transient slew rate = 0.1a/s) time (40s/div) i out (100ma/div) v msd (50mv/div) 100ma 200ma sd2 load transient response (v bat = v pvsd2 = 3.6v; v sd2 = 1.8v; l = 2.2h; c out = 4.7f; transient slew rate = 0.1a/s) time (40s/div) i out (100ma/div) v sd2 (50mv/div) 100ma 200ma aux2 load transient response (v bat = 3.6v; v aux2 = 15v; l = 4.7h; c out = 4.7f/25v; transient slew rate = 0.1a/s) time (40s/div) i out (10ma/div) v aux2 (200mv/div) 1ma 20ma aux3 load transient response (v bat = v pvl3 = 3.6v; v aux3 = -7.5v; l = 4.7h; c out = 4.7f/10v; transient slew rate = 0.1a/s) time (40s/div) i out (10ma/div) v aux3 (200mv/div) 1ma 20ma mininum start-up voltage vs. load curren t (v su = 5v) battery voltage (v) su load current (ma) 2.4 2.2 2.0 1. 83 .2 3.0 2.8 2. 63 .6 3.4 400 600 800 1000 1200 1400 1600 1800 2000 aa t2610 da ta sheet se ven-channel pmu for digital still came ra s skyworks solutions, inc. ? phone [781] 376-3000 ? fax [781] 376-3100 ? sales@skyworksinc.com ? www.skyworksinc.com 202208a ? skyworks proprietary information ? products and product information are subject to change without notice. ? july 25, 2012
17 typical characteristics su start-up (v bat = 3.6v; v su = 5v; c out = 22f; 1a load) time (200s/div) i in (2a/div) en (5v/div) v su (5v/div) lxsu (5v/div) 0 0 0 0 line transient respons e (v bat = 3.6v to 4.2v; v su = 5v; l = 2.2h; c out = 22f; 200ma load) time (1ms/div) v su (100mv/div) v bat (2v/div) 0 0 su start-up sequence (v bat = 3.6v; all seven channels enabled; v su = 5v; su = 10ma load) time (200s/div) i in (1a/div) en (5v/div) v su (5v/div) lx (5v/div) 0 0 0 0 aux1, aux2, aux3 start-up sequence (v bat = 3.6v; aux1 = 4 wleds; v su = 5v; v aux2 = 15v; v aux3 = -7.5v; aux2, aux3 = 10ma load) time (400s/div) en (5v/div) v aux1 (5v/div) v aux2 (5v/div) v aux3 (5v/div) 0 0 0 0 msd, sd1, sd2 startup sequence (v bat = 3.6v; v su = 5v; v msd = 3.3v; v sd2 = 1.8v; 10ma load) en (5v/div) v sd1 (2v/div) v msd (2v/div) v sd2 (2v/div) 0 0 0 0 time (400s/div) msu, sd1, sd2 startup sequence (v bat = 1.8v; v su = 5v; v msu = 3.3v; v sd1 = 2.5v; pvsd1 = pvsd2 = pvsu; 10ma load) time (400s/div) en (2v/div) v msu (2v/div) v sd1 (2v/div) v sd2 (2v/div) 0 0 0 0 aa t2610 da ta sheet se ven-channel pmu for digital still came ra s skyworks solutions, inc. ? phone [781] 376-3000 ? fax [781] 376-3100 ? sales@skyworksinc.com ? www.skyworksinc.com 202208a ? skyworks proprietary information ? products and product information are subject to change without notice. ? july 25, 2012
18 typical characteristics reference voltage vs. temperatur e temperature (c) reference voltage (v) 1.82 .2 2.63 .0 3.43 .8 4.24 .6 5.0 0.596 0.597 0.598 0.599 0.600 0.601 0.602 0.603 0.604 -40c 25c 85c switching frequency vs. temperatur e temperature (c) frequency (mhz) 1.30 1.34 1.38 1.42 1.46 1.50 1.54 1.58 1.62 1.66 1.70 -400 20 40 60 80 -20 shutdown current vs. input voltag e input voltage (v) shutdown current (ua) 1.82 .2 2.63 .0 3.43 .8 4.24 .6 5.0 1.82 .6 3.03 .4 3.84 .2 4.65 .0 5.4 2.2 0.00 0.02 0.04 0.06 0.08 0.10 0.12 0.14 0.16 0.18 0.20 -40c 25c 85c input current vs. input voltag e (only su enabled, v su = 5v, l = 2.2h, c out = 22f) battery voltage (v) input current (ma) 1.02 .0 2.53 .0 3.54 .0 4.55 .0 5.5 1.5 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 -40c 25c 85c aa t2610 da ta sheet se ven-channel pmu for digital still came ra s skyworks solutions, inc. ? phone [781] 376-3000 ? fax [781] 376-3100 ? sales@skyworksinc.com ? www.skyworksinc.com 202208a ? skyworks proprietary information ? products and product information are subject to change without notice. ? july 25, 2012
19 functional block diagram step - up / bypass control step - down control step - down control i/ o, control osc (1 .5 mhz) ot fbsd 2 lxsd 2 pvsd 2 fbsd 1 lxsd 1 pvsd 1 seq lxm pvm lxsu vin fbm pv fbsu susd scf step - up / down control pvl 3 fbl3 vref 3 step -u p control lxl3 lxl2 fbl2 step -u p control lxl1 csl1 ovl1 step -u p control & current sink pvsu pvl pgsu pgmp gsd2 pgsd1p gl gnd enl3 enl2 enl1 (dimming) ensd2 ensd1 ensu enm aa t2610 da ta sheet se ven-channel pmu for digital still came ra s skyworks solutions, inc. ? phone [781] 376-3000 ? fax [781] 376-3100 ? sales@skyworksinc.com ? www.skyworksinc.com 202208a ? skyworks proprietary information ? products and product information are subject to change without notice. ? july 25, 2012
20 functional description the aat2610 pmic is targeted for single cell li-ion bat - tery or dual cell alkaline battery applications. it includes seven integrated step-up and step-down converters, including one synchronous step-up converter (su), two synchronous step-down converters (sd1, sd2), one synchronous step-up or step-down converter (main), two non-synchronous step-up converters (aux1, aux2) and one non-synchronous buck-boost (inverting) converter (aux3). the su converter is the key channel. its output powers all internal control and reference circuits when the out - put voltage is above 2.7v. the aux1 converter is spe - cially designed for 1 to 6 white led serial backlight applications. its current sink pin (csl1) is suitable to control wled current to up to 30ma. aux3 is a transfor - merless inverting converter which controls the internal p-channel mosfet to regulate negative voltage. the aat2610 uses a fixed-frequency peak current control architecture. light load mode is used to enhance light load efficiency. compensation is integrated to reduce the number of external components and achieve excellent transient response and load and line regulation. the ideal 1.5mhz switching frequency allows the use of smaller output filter components for improved power density, reduced external component size, and optimized output voltage ripple. the output voltages can be pro - grammed by an external divider. the aat2610 has seven separate enable pins to control each converter's startup. a 1.4ms startup delay is employed to guarantee that the key su converter is already in regulation and the internal control and the reference have been normally biased before the other six converters start up. synchronous step-up dc to dc converter the aat2610 has one synchronous step-up dc-dc con - verter. it utilizes internal power mosfets to achieve high efficiency over the full load current range. the external feedback can program the output voltage between 3.0v to 5.5v. its bypass mode automatically connects the input to the output when the input voltage is higher than the bypass mode threshold. in shutdown, the enable pin (ensu) is pulled low, the su converter output is equal to the input voltage minus a voltage drop across the para - sitical body diode, and all other channels are shut down regardless of their enable setting. start-up the aat2610's major control circuitries adopt power from the su converter output and do not function at less than 2.7v. to ensure the pmic can start up at v in as low as 1.8v, the step-up converter employs a startup oscilla - tor with a typical 200khz frequency. the startup oscilla - tor drives the internal n-channel mosfet at lxsu until the su converter output voltage reaches 2.7v, at which point the current-mode pwm circuitry takes over. a startup current limit (750ma) and nmosfet off time (700ns) decrease the startup inrush current. at low input voltages, the aat2610 may have difficulty starting up with heavy loads. under-voltage lockout independent uvlo (under-voltage lockout) circuitry guarantees the sufficient input power and proper opera - tion of all internal circuitry. when input voltage at v in rises above 1.8v, the aat2610 leaves uvlo status and enters the startup process. once in regulation, the v in power can be as low as 1.6v before the aat2610 enters uvlo status. bypass mode when the su converter input voltage increases above the bypass mode threshold (typically 4.75v), the step-up converter enters bypass mode, which automatically connects the input to the output. in this mode, p-channel synchronous mosfet is always on and n-channel mosfet is always off. the output voltage follows input voltage in the mode and overload protection is disabled. synchronous step-up/step-down dc to dc converter the aat2610 has one synchronous step-up/step-down dc-dc converter which is ideally designed for 2aa/li-ion applications. the susd pin is used to set the operation mode. when susd is set to logic high, the step-up con - verter setting is selected. n-channel switch transistor current is sensed for current loop control to regulate the output over the complete load range; when susd is pulled low, the step-down converter type is set and the p-channel switch transistor current is sampled for the current control loop. in both converter types, soft-start is employed to suppress the startup inrush current and eliminate the output voltage overshoot. in shutdown with the enable pin (enm) pulled low, if the step-down converter is selected, the converter is forced into a non-switching state and the output voltage drops aa t2610 da ta sheet se ven-channel pmu for digital still came ra s skyworks solutions, inc. ? phone [781] 376-3000 ? fax [781] 376-3100 ? sales@skyworksinc.com ? www.skyworksinc.com 202208a ? skyworks proprietary information ? products and product information are subject to change without notice. ? july 25, 2012
21 to zero. when the step-up converter is selected, the out - put voltage is equal to the input voltage minus a voltage drop across the parasitical body diode. if true load dis - connection is required, an external pmosfet controlled by seq can be adopted. synchronous step-down dc to dc converter the aat2610 has two synchronous step-down dc-dc converters. their output voltages can be programmed from 0.6v to v in by an external resistor divider. at dropout, the converters duty cycle equals 100% and the output voltage tracks the input voltage minus the voltage drop across the p-channel mosfet. at low input supply voltage, the r ds(on) of the p-channel mosfet increases, and the efficiency of the converter decreases. the two step-down converters adopt soft-start to elimi - nate output voltage overshoot when the enable or input voltage is applied. when the ensd1 and ensd2 are pulled low, the outputs of the two sd converters are down to zero and its shutdown current is below 1a. non-synchronous step-up and buck/ boost (inverting) dc to dc converters two non-synchronous step-up converters are targeted for lcd backlight and ccd positive loads. the controllers regulate the output voltage by modulating the pulse width of the internal nmosfet. external schottky diode and power inductor are required to set up the boost. the output voltage can be programmed from 5v to 20v by external divider. auxiliary 1 is ideally designed for driving typical 4 serial white leds. the maximum current flowing through the wled string is sensed at csl1 and set to 30ma by the internal ballast resistor with 10% accuracy. the industry standard pwm (pulse width modulation) controlling tech - nology is adopted to program the wled current. applying a 10% ~100% duty cycle pwm signal with the frequency range 1khz to 30khz at enl1 can get 2ma to 30ma wled current. if an open circuit occurs, the internal over-voltage protection circuit prevents damage to the converter within 67ms, then shuts down all channels. auxiliary 2 is designed for +15v ccd bias. soft-start is adopted to eliminate the output voltage overshoot and decrease the effect on the input voltage. auxiliary 3 is non-synchronous buck-boost (inverting) dc to dc converter which is targeted for negative ccd loads with low noise. soft-start is adopted to limit the inrush current at startup. light load mode and normal pwm control the aat2610 uses light load mode to enhance the effi - ciency at light load. in light load mode, if the error amplifier output signal is lower than a given level at a certain clock point, the switch pulse is skipped to reduce dominant switching losses. in normal pwm mode to the buck converter, the current through the p-channel (high side) is sensed for current loop control. the p-channel current limit is used to pre - vent internal power pmosfet overstress or damage by the high power. to the boost converter, the current though the n-channel (low side) is sensed for the control loop and its current limit also protects the main mosfet. the error amplifier programs the current mode loop for the necessary peak switch current to force a constant output voltage for all load and line conditions. t he inter - nal fixed slope compensation is employed to eliminate the sub-harmonic oscillation and keep regulation stable when the duty cycle is over 50%. fault protection short-circuit and overload protection when any of the converters output voltage is lower than the programmed value for a certain period of time (100,000 clock cycles, typically 66.7ms), the central control circuits treat it as an overload situation; all seven channels will be turned off and scf will be pulled low until the ic is restarted either by su enable pin (ensu) reset or re-application of the input voltage. during over - load period, the peak current limit prevents the main switch (nmosfet of step-up converter and pmosfet of step-down converter) from overstress and damage, and also avoids saturation of the external inductor. for syn - chronous step-up (su) channels, overload protection function is disabled in bypass mode. over-temperature protection thermal protection completely disables power mosfet switching when internal power dissipation becomes excessive. only reference and internal clock are still active in this condition. once the over-temperature con - dition is removed, the output voltages automatically recover. the junction over-temperature threshold is 140c with 15c of hysteresis. aa t2610 da ta sheet se ven-channel pmu for digital still came ra s skyworks solutions, inc. ? phone [781] 376-3000 ? fax [781] 376-3100 ? sales@skyworksinc.com ? www.skyworksinc.com 202208a ? skyworks proprietary information ? products and product information are subject to change without notice. ? july 25, 2012
22 application information setting the output voltage step-down converter an external resistor divider is used to program the step- down converter's output voltage from 0.6v to v in . resistors r1 and r2 in figure 1 program the output to regulate at voltages higher than 0.6v. to limit the bias current required for the external feedback resistor string while maintaining good noise immunity, the suggested value for r2 is 59k. although a larger value will further reduce quiescent current, it will also increase the imped - ance of the feedback node, making it more sensitive to external noise and interference. table 1 summarizes the resistor values for various output voltages with r2 set to 59k. the aat2610 has 3 step-down converters: sd1, sd2 and main sd. the external resistor sets the output volt - age according to the following equations: v out = 0.6v 1 + r1 r2 r1 = -1 r2 v out 0.6v table 1 shows the resistor selection for different output voltage settings. 1% accuracy metal-film resistors are strongly recommended to get accurate output voltages. v out (v) r2 = 59k r1 (k) 1.2 59 1.5 88.7 1.8 118 2.5 187 3.0 237 3.3 267 table 1: resistor select for step-down converter output voltage setting. step-up converter similar to the step-down converter, the step-up regula - tors also use an external resistor divider to program the output voltage. the aat2610 has 4 step-up converters: su, main su, aux1 and aux2. the equation for external resistors setting the output voltage is same as for the step-down converter. figure 2 shows the synchronous (su and main su) and non-synchronous (aux1 and aux2) step-up converter application connections. table 2 shows resistor selection for different output voltage settings. 1% accuracy metal-film resistors are strongly recommended to get accurate output voltages. pg lx pv fb aat 2610 st ep-down conver te r c1 v in l1 c2 r1 187k r2 59 k v ou t 2. 5v figure 1: step-down converter with output voltage programmed by external resistor divider. aa t2610 da ta sheet se ven-channel pmu for digital still came ra s skyworks solutions, inc. ? phone [781] 376-3000 ? fax [781] 376-3100 ? sales@skyworksinc.com ? www.skyworksinc.com 202208a ? skyworks proprietary information ? products and product information are subject to change without notice. ? july 25, 2012
23 v out (v) r2 = 59k r1 (k) 3.3 267 3.8 316 4.2 357 5.0 432 15 1420 table 2: resistor select for step-up converter output voltage setting. buck-boost (inverting) converter the aat2610 has one inverting converter, aux3. figure 3 shows an aux3 application circuit. its programmed output voltage can be set by the following equations: v out = r1 -0.6v r2 r1 = r2 v out -0.6v re f lx l3 fb l3 aat 2610 in vert i ng c onver te r c2 r1 732k r2 59 k vo ut -7 .5 v l1 d1 c3 pvl3 c1 vi n figure 3: buck/boost (inverting) converter with output voltage programmed by external resistor divider. inductor selection the aat2610 can utilize small surface mount inductors due to its fast 1.5mhz switching frequency. optimized inductor values for each channel keeps the seven chan - nels stable, and achieves reduced output voltage ripple at smaller output capacitor size. see table 3 for recom - mended inductors for each channel. a greater inductance value will allow greater output current capability by reducing inductor ripple current. increasing the induc - tance above 4.7h will increase size to get enough satu - ration current rating. the following equations show the minimum saturation current of the selected inductors. c2 c1 pg pv lx fb aat 2610 synchronous step-up converte r v in r1 432k r2 59 k v ou t 5v l1 c1 pg lx fb aat 2610 non-synchronous step-up converte r c2 r1 1. 43 m r2 59 k v out 15 v l1 d1 v in (a) synchronous step-up converter (b) non-synchronous step-up converter figure 2: step-up converter with output voltage programmed by external resistor divider. aa t2610 da ta sheet se ven-channel pmu for digital still came ra s skyworks solutions, inc. ? phone [781] 376-3000 ? fax [781] 376-3100 ? sales@skyworksinc.com ? www.skyworksinc.com 202208a ? skyworks proprietary information ? products and product information are subject to change without notice. ? july 25, 2012
24 to step-up converter, i l_sat >+ i out_max 1 - d v in d 2 f l among it, d = 1 - v in v out to step-down converter, i l_sat > i out_max + (v in - v out ) d 2 f l among it, d = v out v in input and output capacitor selection low esr (equivalent series resistance) capacitors should be used to minimize output voltage ripple. multilayer ceramic capacitors are an excellent choice as they have extremely low esr and are available in small footprints. the following equations show the minimum capacitance under the required output voltage ripple for step-up and step-down converters. in actual application, capacitance usually decreases a lot as its dc bias increases. so when selected output capacitors, not only calculating the out - put capacitor minimum values are necessary according to the equations, but the actual capacitance must be carefully considered to get expected output voltage rip - ple. x5r and x7r dielectric materials of ceramic capaci - tors are preferred for their ability to maintain capaci - tance over wide voltage and temperature ranges. to step-up converter, c out d i out ?v out f to step-down converter, c out (1 - d) v out 8 f 2 l ?v out for example, to step-up converter, when v in = 3.6v, i out = 900ma, and f = 1.5mhz, output ripple requires below 30mv. according to the equation above, the calculated c out should be higher than 5.6f. if use sumida 22f/6.3v 0805 ceramic capacitor, its capacitance at 5v dc bias is 8.0f which can meet the ripple requirements. input capacitors for input decoupling should be located as close as possible to the device to get better input power filtering effect. select 1 f to 4.7 f x5r or x7r ceramic capacitors for the inputs. table 4 shows sug - gested capacitor part numbers. manufacturer part number inductance (h) max dc current (a) dcr (m) size (mm) lxwxh type suit for channel sumida cdrh4d22/hp 2.2 3.2 35.4 4.5x4.5x2.4 shielded su cdrh8d28 2.5 4.5 12 8.3x8.3x3 shielded su cdrh2d09 2.5 0.53 120 3.2x3.2x1.0 shielded main sd, sd1, sd2 2.2 0.60 115 3.2x3.2x1.0 shielded main sd, sd1, sd2 1.8 0.65 105 3.2x3.2x1.0 shielded sd2 cdrh2d09c 3.3 0.50 139 3.2x3.2x1.0 shielded main su cdrh2d14 4.7 1.0 135 3.2x3.2x1.55 shielded aux1, aux2, aux3 cdrh2d11/hp 4.7 0.75 190 3.2x3.2x1.2 shielded cdrh2d18/hp 2.2 1.6 48 3.2x3.2x2.0 shielded main sd, sd1, sd2 cdrh2d18/hp 4.7 1.2 110 3.2x3.2x2.0 shielded aux1, aux2, aux3 cooper sd3110 2.2 1.0 149 3.1x3.1x1.0 shielded main sd, sd1, sd2 sd3110 3.3 0.81 195 3.1x3.1x1.0 shielded main su, sd1, sd2 sd3112 4.7 0.80 246 3.1x3.1x1.2 shielded aux1, aux2, aux3 murata lqh32pn2r2nn0 2.2 1.6 76 3.2x2.5x1.55 unshielded main sd, sd1, sd2 lqh32pn3r3nn0 3.3 1.2 120 3.2x2.5x1.55 unshielded main su, sd1, sd2 lqh32pn4r7nn0 4.7 1.0 180 3.2x2.5x1.55 unshielded aux1, aux2, aux3 table 3: suggested inductor selection information. aa t2610 da ta sheet se ven-channel pmu for digital still came ra s skyworks solutions, inc. ? phone [781] 376-3000 ? fax [781] 376-3100 ? sales@skyworksinc.com ? www.skyworksinc.com 202208a ? skyworks proprietary information ? products and product information are subject to change without notice. ? july 25, 2012
25 manufacturer value (f) voltage (v) case size part number channel / capacitor position murata 1 25 0603 grm188r61e105k aux1 / output 1 10 0603 grm185r61a105k sd1, sd2, aux1, aux2, aux3 / input 3.3 10 0603 grm188r61a335k aux3 / output 4.7 25 0805 grm21br61e475k aux2 / output 4.7 6.3 0603 grm188r60j475k su, main / input main sd, sd1, sd2 / output 10 6.3 0805 grm219r60j106ke19 main su, sd1, sd2 22 6.3 0805 grm21br60j226m su, main su / output table 4: suggested input and output capacitor selection information. output diode a schottky diode is suitable in the three non-synchronous step-up channels for its low forward voltage and fast recovery time. 20v rated schottky diodes are recom - mended for outputs less than 10v, while 30v rated schottky diodes are recommended for outputs greater than 10v. table 5 shows suggested diode part numbers. using seq for power sequence power sequence delay is designed to connect the loads to main channel output after its normal startup. use the seq output signal to control an external pmosfet con - nected between main output and loads. the seq output is high impedance lasted for 10ms when startup, then pulled low after both the sd1 and sd2 converters com - pleted soft-start and achieved output regulation. when sd1 and sd2 are disabled, seq is also pulled low after 10ms when main channel achieves regulation. using scf for full-load startup scf goes high (high impedance, open drain) when over - load protection occurs. under normal operation, scf pulls low. it can be used to drive a p-channel mosfet switch that turns off the load of a selected supply in the event of an overload. or, it can remove the load until the supply reaches regulation, effectively allowing full load startup. thermal considerations thermal design is an important aspect of power manage - ment ic applications and pcb layout. the aat2610 tqfn55-40l package can provide up to 2w of power dis - sipation when it is properly soldered onto a printed circuit board with thermal vias. the package has a maximum thermal resistance of 25c/w. the maximum power dis - sipation in a given ambient condition can be calculated: (t j(max) - t a ) p d(max) = ja where: p d(max) = maximum power dissipation (w) ja = package thermal resistance (c/w) t j(max) = maximum device junction temperature (c) [150c] t a = ambient temperature (c) the power dissipation for the synchronous buck channel in ccm (continuous conduction mode) can be calculated by the following equation: p syn-buck = i outbuck 2 r ds(on)p + r ds(on)n 1 - v inbuck v outbuck v inbuck v outbuck where: p syn-buck = synchronous buck channel power dissipation i outbuck = synchronous buck channel output current v outbuck = synchronous buck channel output voltage v inbuck = synchronous buck channel input voltage r ds(on)x = synchronous buck channel pmos or nmos drain-source on resistance aa t2610 da ta sheet se ven-channel pmu for digital still came ra s skyworks solutions, inc. ? phone [781] 376-3000 ? fax [781] 376-3100 ? sales@skyworksinc.com ? www.skyworksinc.com 202208a ? skyworks proprietary information ? products and product information are subject to change without notice. ? july 25, 2012
26 the power dissipation for the synchronous boost channel in ccm can be calculated by the following equation: p syn-boost = i inboost 2 r ds(on)p + r ds(on)n 1 - v inboost v outboos t v inboost v outboos t where: p syn-boost = synchronous boost channel power dissipation i inboost = synchronous boost channel input current v outboost = synchronous boost channel output voltage v inboost = synchronous boost channel input voltage r ds(on)x = synchronous boost channel pmos or nmos drain-source on resistance the power dissipation for the non-synchronous boost channel can be calculated by the following equation: p nonsyn-boost = i inboost 2 r ds(on)n 1 - v inboost v outboos t where: p nonsyn-boost = non-synchronous boost channel power dissipation i inboost = non-synchronous boost channel input current v outboost = non-synchronous boost channel output voltage v inboost = non-synchronous boost channel input voltage r ds(on)n = non-synchronous boost channel internal nmos drain-source on resistance the power dissipation for the inverting channel in ccm can be calculated by the following equation: p nonsyn-buckboos t = i in-buckboost 2 r ds(on)p v out-buckboost v in-buckboost - v out-buckboost where: p nonsyn-buckboost = non-synchronous buck/boost channel power dissipation i in-buckboost = non-synchronous buck/boost channel input current v out-buckboost = non-synchronous buck/boost channel output voltage v in-buckboost = non-synchronous buck/boost channel input voltage r ds(on)p = non-synchronous buck/boost channel inter - nal pmos drain-source on resistance layout guidance when laying out the pc board, the following layout guideline should be followed to ensure proper operation of the aat2610: 1. the exposed pad (ep) must be reliably soldered to the gnd plane for better power dissipation. a pgnd pad below ep is required. 2. the power traces, including the gnd trace, the lx trace and the in trace should be kept short, direct and wide to allow large current flow. each inductor of the seven channels should be connected to the lx pins as short as possible. use several via pads when routing between layers to decrease the conduction resistance. 3. the input filter capacitor of each channel should con - nect as closely as possible to in (pins 3, 8, 15, 29, 33 and 35) and gnd (pins 5, 6, 26, 27 and 37) to get good power filtering. 4. keep the switching node, lx (pins 4, 7, 25, 29, 34, 36 and 38), away from the sensitive fb node. 5. the feedback trace should be separate from any power trace and connect as closely as possible to the load point. sensing along a high-current load trace will degrade dc load regulation. the external feed - back resistors should be placed as closely as possi - ble to the fb pin (pin 1, 2, 9, 23, 30, 32 and 40) to minimize the length of the high impedance feedback trace. 6. it is recommended to connect the external feedback resistor divider to the signal ground (pin 16). the signal ground and power ground should be con - nected at a single point to alleviate the power ground noise affecting the feedback voltage. 7. the resistance of the trace from the load return to pgnd should be kept to a minimum. this will help to minimize any error in dc regulation due to differ - ences in the potential of the internal signal ground and the power ground. figure 4 and 5 show the aat2610 evaluation board lay - out with 4 layers. aa t2610 da ta sheet se ven-channel pmu for digital still came ra s skyworks solutions, inc. ? phone [781] 376-3000 ? fax [781] 376-3100 ? sales@skyworksinc.com ? www.skyworksinc.com 202208a ? skyworks proprietary information ? products and product information are subject to change without notice. ? july 25, 2012
27 manufacturer part number rated forward current (a) non- repetitive peak surge current (a) rated voltage (v) thermal resistance (r ja , c/w) package on semi mbr0530t 0.5 5.5 30 206 sod-123 mbr0520lt 0.5 5.5 20 206 sod-123 diodes bat42w 0.2 4 30 500 sod-123 zetex zhcs350 0.35 4.2 40 330 sod-523 central semi cmdsh2-3 0.2 1.0 30 500 sod-323 table 5: suggested schottky diode selection information. vb at vb at vb at 187k r3 01 59 k r3 02 2. 2u h l3 10uf c3 02 +2 .5 v vs d1 4. 7u h l6 22uf c1 03 a 4. 7u f c 601 mb r0 530 d6 1. 42 m r6 01 59 k r 602 4. 7uh l5 4. 7uf c5 01 vb at mb r0 530 d5 1uf/ 25 v c5 02 d5 01 d5 02 d5 03 d5 04 vaux 1 lx l1 je ns u je nm je ns d1 je ns d2 je nl 1 pv su gnd gnd gnd gnd m1 m2 m3 gnd gnd m4 4. 7uf c3 01 lx su gnd 4. 7u h l7 mb r0 530 d7 pv su fb l3 10 uf /1 6v c7 02 b 732k r7 01 59 k r7 02 vr ef 3 -7 .5 v vaux 3 fb l3 432k r1 01 59 k r1 02 4. 7uf c1 01 2. 2uh l1 vs u= (1 +r 101/ r1 02 )* 0. 6 pv su +5 v vs u 3. 3uh l2 sd 22uf c 202 267k r2 01 59 k r2 02 +3 .3 v vm 22 uf fo r ms u only c2 01 b 2. 2u h l2 su vm =( 1+ r3 /r 4) *0 .6 vm vb at vb at vs d1 =( 1+ r3 01 /r 302 )* 0. 6 vb at 118k r4 01 2. 2u h l4 4. 7u f c4 02 vs d2 +1 .8 v 4. 7uf c4 01 vs d2 =( 1+ r4 01 /r 402 )* 0. 6 ovl1 =( 1+ r5 01 /r 502) *0 .6 vaux 3= -0 .6 *( r7 01 /r 702) wl ed - 4. 7u f c 701 m ain cha nne l st ep -up: pl ace c 204, l2 su , r2 u1 , c201ab , r2 u2 , r2 u3 59 k r4 02 ovl1 +1 5v vaux 2 10 uf /1 6v c6 02 a 10uf c ma in cha nne l s tep -dow n: pl ace r2d 1, c201 a, l2 sd , c202 , r2d2 r1 04 sc f sc f aat 2610 cs l1 39 fb l2 1 en sd 2 18 lx sd 1 4 pv sd 1 3 en m 20 lx l3 34 lx l1 38 lx l2 36 pv 17 ovl1 40 fb su 23 en su 21 fb m 9 en sd 1 19 lx sd 2 28 vi n 15 lx su 25 fb sd 1 2 pv sd 2 29 fb sd 2 30 pv su 24 lx m 7 pv m 8 en l1 14 fb l3 32 pv l3 33 pg m 6 pg su 26 pg sd 1 5 gnd 16 pg l 37 ep 41 sc f 22 pg sd 2 27 se q 10 vr ef 3 31 pv l 35 en l3 12 en l2 13 su sd 11 u1 1. 54 m r5 01 59 k r5 02 cs l1 cs l1 pv su aux1 aux 3 vr ef 3 je nl 2 je nl 3 0 r2 u3 0 r2 d2 pv su 1u f c7 03 1uf c1 02 su sd =p vs u: ma in ch a nne l is se t to boost su sd =g nd : ma in ch an ne l is se t to buc k 4. 7u f c2 04 4. 7u f c 503 vaux 2= 1+ r6 01 /r 602 )* 0. 6 sgnd pgnd sgnd 0 r2 d1 0 r2 u1 0 r3 03 0 r4 03 0 r2 u2 0 r5 03 3. 9p f fo r li -i on /1 .5 pf fo r 2a a c7 04 pv su 0 r 505 0 r 506 d5 05 2 1 d5 06 0 r5 04 vb at pv su 0 r 603 0 r 604 56 pf fo r li -i on /6 .8 pf fo r 2a a c 603 0 r 704 10 uf /1 6v c7 02 a 10uf /1 6v c 602 b 56 pf fo r ms d/ 82pf fo r ms u c2 03 vb at 0 r 703 22 uf c1 03 b 27 pf c1 04 pv l3 /s eq r 507 22 uf fo r ms u /4 .7 uf fo r ms d c2 01 a 0 r3 04 pv su 0 r4 04 pv su figure 4: aat2610 evaluation board schematic. aa t2610 da ta sheet se ven-channel pmu for digital still came ra s skyworks solutions, inc. ? phone [781] 376-3000 ? fax [781] 376-3100 ? sales@skyworksinc.com ? www.skyworksinc.com 202208a ? skyworks proprietary information ? products and product information are subject to change without notice. ? july 25, 2012
28 (a) top layer (b) internal gnd layer (c) internal signal layer (d) bottom layer figure 5: aat2610 evaluation board pcb layout. aa t2610 da ta sheet se ven-channel pmu for digital still came ra s skyworks solutions, inc. ? phone [781] 376-3000 ? fax [781] 376-3100 ? sales@skyworksinc.com ? www.skyworksinc.com 202208a ? skyworks proprietary information ? products and product information are subject to change without notice. ? july 25, 2012
29 designation part number description manufacturer ic device u1 aat2610iic seven-channel high effciency power management unit skyworks capacitor c t494b106m010as cap tan 10f b 10v 20% kemet c101 grm21br61c475k cap ceramic 4.7f 0805 x5r 16v 10% murata c102, c703 grm185r61a105k cap ceramic 1f 0603 x5r 10v 10% c103a, c103b, c202 grm21br60j226m cap ceramic 22f 0805 x5r 6.3v 20% c104 grm1885c1h270j cap ceramic 27pf 0603 c0g 50v 5% c201a, c301, c401, c402, c501, c503, c601, c701 grm188r60j475k cap ceramic 4.7f 0603 x5r 6.3v 10% c203, c603 grm1885c1h560j cap ceramic 56pf 0603 c0g 50v 5% c302 grm188r60j106m cap ceramic 10f 0603 x5r 6.3v 20% c303, c403 grm1885c1h100j cap ceramic 10pf 0603 c0g 50v 5% c502 grm188r61e105k cap ceramic 1f 0603 x5r 25v 10% c602a, c602b, c702a, c702b grm21br61c106k cap ceramic 10f 0805 x5r 16v 10% c704 grm1885c1h3r9d cap ceramic 3.9pf 0603 c0g 50v 0.5pf inductor l1 cdrh4d22/hp-2r2nc power inductor 2.2h 3.2a smd sumida l2sd cdrh2d14-3r3nc power inductor 3.3h 1.2a smd l3, l4 cdrh2d18/hpnp-2r2nc power inductor 2.2h 1.6a smd l5, l6, l7 cdrh2d14 np-4r7nc power inductor 4.7h 1.0a smd resistor r2d1, r2d2, r303 r403, r503, r504, r506, r604, r703 rc0603fr-070rl res 0 1/10w 1% 0603 smd yageo r101 rc0603fr-07432kl res 432k 1/10w 1% 0603 smd r102, r202, r302 r402, r502, r602, r702 rc0603fr-0759kl res 59k 1/10w 1% 0603 smd r201 rc0603fr-07267kl res 267k 1/10w 1% 0603 smd r301 rc0603fr-07187kl res 187k 1/10w 1% 0603 smd r401 rc0603fr-07118kl res 118k 1/10w 1% 0603 smd r501 rc0603fr-071m54l res 1.54m 1/10w 1% 0603 smd r601 rc0402fr-071m42l res 1.42m 1/16w 1% 0402 smd r701 rc0603fr-07732kl res 732k 1/10w 1% 0603 smd other d501, d502, d503, d504 rs-0805 30ma white led 0805 realstar d5, d6, d7 mbr0530 diode schottky 0.5a 30v sod-123 international rectifer table 6: aat2610 li-ion application demo board bill of materials (bom). aa t2610 da ta sheet se ven-channel pmu for digital still came ra s skyworks solutions, inc. ? phone [781] 376-3000 ? fax [781] 376-3100 ? sales@skyworksinc.com ? www.skyworksinc.com 202208a ? skyworks proprietary information ? products and product information are subject to change without notice. ? july 25, 2012
30 designation part number description manufacturer ic device u1 aat2610iic seven-channel high effciency power management unit skyworks capacitor c t494b106m010as cap tan 10f b 10v 20% kemet c101 grm21br61c475k cap ceramic 4.7f 0805 x5r 16v 10% murata c102, c703 grm185r61a105k cap ceramic 1f 0603 x5r 10v 10% c103a, c201a, c201b, c302 grm21br60j226m cap ceramic 22f 0805 x5r 6.3v 20% c203 grm1885c1h820j cap ceramic 82pf 0603 c0g 50v 5% c204, c301, c401, c402, c501, c503, c601, c701 grm188r60j475k cap ceramic 4.7f 0603 x5r 6.3v 10% c303 grm1885c1h150j cap ceramic 15pf 0603 c0g 50v 5% c403 grm1885c1h5r6d cap ceramic 5.6pf 0603 c0g 50v 0.5pf c502 grm21br61e475ka cap ceramic 4.7f 0805 x5r 25v 10% c602a,c602b, c702a, c702b grm21br61c106k cap ceramic 10f 0805 x5r 16v 10% c603 grm1885c1h6r8d cap ceramic 6.8pf 0603 c0g 50v 0.5pf c704 grm1885c1h1r5d cap ceramic 1.5pf 0603 c0g 50v 0.5pf inductor l1 cdrh4d22/hp-2r2nc power inductor 2.2h 3.2a smd sumida l2su, l3, l4 cdrh2d18/hpnp-2r2nc power inductor 2.2h 1.6a smd l5, cdrh2d14 np-4r7nc power inductor 4.7h 1.0a smd l6, l7 cdrh2d18/hp-100 power inductor 10h 0.85a smd resistor r2u1, r2u2, r2u3 r303, r404, r503, r504, r506, r604, r704 rc0603fr-070rl res 0 1/10w 1% 0603 smd yageo r101 rc0603fr-07432kl res 432k1/10w 1% 0603 smd r102, r202, r301, r302, r402, r502, r602 rc0603fr-0759kl res 59k1/10w 1% 0603 smd r201 rc0603fr-07267kl res 267k1/10w 1% 0603 smd r401 rc0603fr-07187kl res 187k 1/10w 1% 0603 smd r501 rc0603fr-071m54l res 1.54m 1/10w 1% 0603 smd r601 rc0603fr-071m2l res 1.2m 1/10w 1% 0603 smd r701 rc0603fr-07732kl res 732k 1/10w 1% 0603 smd r702 rc0603fr-0751kl res 51k 1/10w 1% 0603 smd other d501, d502, d503, d504 rs-0805 30ma white led 0805 realstar d5, d6, d7 mbr0530 diode schottky 0.5a 30v sod-123 international rectifer table 7: aat2610 2aa application demo board bill of material (bom). aa t2610 da ta sheet se ven-channel pmu for digital still came ra s skyworks solutions, inc. ? phone [781] 376-3000 ? fax [781] 376-3100 ? sales@skyworksinc.com ? www.skyworksinc.com 202208a ? skyworks proprietary information ? products and product information are subject to change without notice. ? july 25, 2012
31 ordering information output voltage package marking 1 part number(tape & reel) 2 adj. 0.6v tqfn55-40l 3gxyy aat2610iic-t1 skyworks green? products are compliant with all applicable legislation and are halogen-free. for additional information, refer to skyworks de?nition of green?, document number sq04-0074. package information tqfn55-40l 3 t op v iew side v iew bottom v iew 5.000 0.050 5.000 0.050 pin 1 dot by marking pin 1 identification chamfer 0.300 x 45 3.600 0.050 3.600 0.050 0.450 0.050 0.380 0.050 0.200 0.050 0.400 bsc 0.750 0.050 0.000 + 0.100 - 0.000 0.203 ref all dimensions in millimeters. 1. xyy = assembly and date code. 2. sample stock is generally held on part numbers listed in bold . 3. the leadless package family, which includes qfn, tqfn, dfn, tdfn and stdfn, has exposed copper (unplated) at the end of the lead terminals due to the manufacturing process. a solder fillet at the exposed copper edge cannot be guaranteed and is not required to ensure a proper bottom solder connection. aa t2610 da ta sheet se ven-channel pmu for digital still came ra s skyworks solutions, inc. ? phone [781] 376-3000 ? fax [781] 376-3100 ? sales@skyworksinc.com ? www.skyworksinc.com 202208a ? skyworks proprietary information ? products and product information are subject to change without notice. ? july 25, 2012 copyright ? 2012 skyworks solutions, inc. all rights reserved. information in this document is provided in connection with skyworks solutions, inc. (skyworks) products or services. these materials, including the information contained herein, are provided by skyworks as a service to its customers and may be used for informational purposes only by the customer. skyworks assumes no responsibility for errors or omissions in these materials or the information contained herein. sky - works may change its documentation, products, services, specifcations or product descriptions at any time, without notice. skyworks makes no commitment to update the materials or information and shall have no responsibility whatsoever for conficts, incompatibilities, or other diffculties arising from any future changes. no license, whether express, implied, by estoppel or otherwise, is granted to any intellectual property rights by this document. skyworks assumes no liability for any materials, products or information provided here - under, including the sale, distribution, reproduction or use of skyworks products, information or materials, except as may be provided in skyworks terms and conditions of sale. the materials, products and information are provided as is without warranty of any kind, whether express, implied, statutory, or otherwise, including fitness for a particular purpose or use, merchantability, performance, quality or non-infringement of any intellectual property right; all such warranties are hereby expressly disclaimed. skyworks does not warrant the accuracy or completeness of the information, text, graphics or other items contained within these materials. skyworks shall not be liable for any damages, in - cluding but not limited to any special, indirect, incidental, statutory, or consequential damages, including without limitation, lost revenues or lost profits that may result from the use of the materials or information, whether or not the recipient of materials has been advised of the possibility of such damage. skyworks products are not intended for use in medical, lifesaving or life-sustaining applications, or other equipment in which the failure of the skyworks products could lead to personal injury, death, physical or en - vironmental damage. skyworks customers using or selling skyworks products for use in such applications do so at their own risk and agree to fully indemnify skyworks for any damages resulting from such improper use or sale. customers are responsible for their products and applications using skyworks products, which may deviate from published specifcations as a result of design defects, errors, or operation of products outside of pub - lished parameters or design specifcations. customers should include design and operating safeguards to minimize these and other risks. skyworks assumes no liability for applications assistance, customer product design, or damage to any equipment resulting from the use of skyworks products outside of stated published specifcations or parameters. skyworks, the skyworks symbol, and breakthrough simplicity are trademarks or registered trademarks of skyworks solutions, inc., in the united states and other countries. third-party brands and names are for identifcation purposes only, and are the property of their respective owners. additional information, including relevant terms and conditions, posted at www.skyworksinc.com, are incorporated by reference.

▲Up To Search▲

Price & Availability of AAT2610-12

	To Download AAT2610-12 Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .