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1 aa t2605 da ta sheet five-channel 300ma ldo regulator skyworks solutions, inc. ? phone [781] 376-3000 ? fax [781] 376-3100 ? sales@skyworksinc.com ? www.skyworksinc.com 202183a ? skyworks proprietary information ? products and product information are subject to change without notice. ? july 24, 2012 general description the AAT2605 is a member of skyworks' total power management ic (tpmic?) product family. it contains five fully integrated 300ma low dropout (ldo) regulators in a small pb-free 14-pin 3mm x 3mm tdfn package, making it ideal for space-constrained systems. the AAT2605 features low power consumption, low drop - out, and high noise immunity from the input power sup - ply. each channel consumes a mere 30a of current when enabled, features 250mv of dropout at 250ma and 68db of power supply rejection at 10khz. each channel has its own enable pin and uses a small 1f output capacitor. output voltages are factory one time programmable (otp) between 0.6v and 3.7v with 100mv increment and typical regulation accuracy is 1%. ldo1 and ldo2 share the same input voltage, as do ldo3 and ldo4 while ldo5 has its own independent input. the AAT2605 is a safe solution that integrates an over- current limit for each channel and an over-thermal pro - tection. the device is rated over a temperature range of -40c to 85c. features? 2.7v to 5.5v operating input voltage range ? 5 outputs with factory programmable voltages from 0.6v to 3.7v ? 300ma output current per channel ? 3mmx3mm, 14-pin tdfn package ? 1% typical accuracy ? low 30a quiescent current ? high psrr (68db @10khz) ? 250mv dropout voltage at 250ma ? independent enable ? over-current protection ? over-thermal protection applications ? cellular applications ? handheld products ? media players (mp4 players) ? portable navigation devices (pnd) typical application 1f c8 1f c7 1f c6 1f c5 1f c4 tp2 vin34 tp3 vin5 tp4 vo5 tp5 vo4 tp6 vo3 tp7 vo2 tp8 vo1 vin34 vin5 vin34 6 en3 3 en1 1 5 7 vin5 gnd vcc 8 en2 2 vo1 13 vo3 11 vo5 9 vo4 10 vo2 12 en5 14 en4 4 u1 AAT2605_tdfn33-14 c1 2.2f tp1 vcc vcc c2 2.2f c3 2.2f power supply rejection ratio, psrr (v in(dc) = 5v; v out = 1.9v; i out = 100ma) frequency (hz) psrr (db) 100 1000 10 10000 100000 1000000 0 10 20 30 40 50 60 70 80 downloaded from: http:///
2 aa t2605 da ta sheet five-channel 300ma ldo regulator skyworks solutions, inc. ? phone [781] 376-3000 ? fax [781] 376-3100 ? sales@skyworksinc.com ? www.skyworksinc.com 202183a ? skyworks proprietary information ? products and product information are subject to change without notice. ? july 24, 2012 pin descriptions pin # symbol function 1 en1 ldo1 enable; active high. 2 en2 ldo2 enable; active high. 3 en3 ldo3 enable; active high. 4 en4 ldo4 enable; active high. 5 vcc input to power control circuit, ldo1, and ldo2. 6 vin3/4 input to ldo3 and ldo4. 7 gnd analog ground. 8 vin5 input to ldo5. 9 vo5 ldo5 output voltage. 10 vo4 ldo4 output voltage. 11 vo3 ldo3 output voltage. 12 vo2 ldo2 output voltage. 13 vo1 ldo1 output voltage. 14 en5 ldo5 enable; active high. pin configuration tdfn33-14 (top view) en1en2 en3 1 en4 vcc vin3/4 en5vo1 vo2 vo3 vo4 vo5 2 3 4 5 6 gnd 7 12 11 1413 10 9 vin5 8 downloaded from: http:///
3 aa t2605 da ta sheet five-channel 300ma ldo regulator skyworks solutions, inc. ? phone [781] 376-3000 ? fax [781] 376-3100 ? sales@skyworksinc.com ? www.skyworksinc.com 202183a ? skyworks proprietary information ? products and product information are subject to change without notice. ? july 24, 2012 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 an fr4 board. absolute maximum ratings 1 symbol description value units v in vcc, vin3/4, vin5, en1, en2, en3, en4, en5 to gnd -0.3 to 6.5 v thermal information 2 symbol description value units ja thermal resistance 50 c/w p d maximum power dissipation 2 w t j operating temperature range -40 to 150 c t s storage temperature range -65 to 150 t lead maximum soldering temperature (at leads, 10 sec.) 300 downloaded from: http:///
4 aa t2605 da ta sheet five-channel 300ma ldo regulator skyworks solutions, inc. ? phone [781] 376-3000 ? fax [781] 376-3100 ? sales@skyworksinc.com ? www.skyworksinc.com 202183a ? skyworks proprietary information ? products and product information are subject to change without notice. ? july 24, 2012 1. specification over the -40c to +85c operating temperature range is assured by design, characterization and correlation with statistical process controls. electrical characteristics 1 v cc = v in3/4 = v in5 = 5.0v, -40 c t a +85 c, unless noted otherwise. typical values are t a = 25 c. symbol description conditions min typ max units logic control / protection v enx input high threshold 1.4 v input low threshold 0.3 v input supply v cc , v in3/4 , v in5 input voltage range 2.7 5.5 v uvlo under-voltage lockout threshold vcc falling 2 v vcc rising 2.2 low-dropout regulator (ldo1:ldo5) v ldo ldo output voltage i ldo = 1ma to 250ma, otp per requirement 0.6v v inldo - v do v ldo accuracy i ldo = 10ma -3 +3 % i q ldo quiescent current v inx = 5.0v, added quiescent current when ldo is enabled 30 55 a i shdn shutdown current v inx = 5.0v, en = gnd 1 a line regulation i ldo = 10ma 0.1 %/v v do dropout voltage i ldo = 250ma 250 500 mv psrr power supply rejection ratio v inx = 5.0v, en = high, i ldo = 100ma, f = 10khz, v ox = 1.8v 68 db i ldo(lim) ldo current limit 300 ma thermal t sd over-temperature shutdown threshold rising 145 c t hys over-temperature shutdown hysteresis 25 c downloaded from: http:///
5 aa t2605 da ta sheet five-channel 300ma ldo regulator skyworks solutions, inc. ? phone [781] 376-3000 ? fax [781] 376-3100 ? sales@skyworksinc.com ? www.skyworksinc.com 202183a ? skyworks proprietary information ? products and product information are subject to change without notice. ? july 24, 2012 programming output voltages via otp regulator output voltage range resolution ldo1 0.6v 3.7v 100mv ldo2 0.6v 3.7v 100mv ldo3 0.6v 3.7v 100mv ldo4 0.6v 3.7v 100mv ldo5 0.6v 3.7v 100mv block diagram ldo1ldo2 ldo3 ldo4 ldo5 vcc bias, control, and otp AAT2605 vo1 c2 2.2f c1 2.2f c81f c7 1f c6 1f c5 1f c4 1f c3 2.2f output voltage trim output voltage trim output voltage trim output voltage trim output voltage trim en1 vo2 en2 vo3 en3 vo4 en4 vo5 en5 vin3/4 vin5 gnd downloaded from: http:///
6 aa t2605 da ta sheet five-channel 300ma ldo regulator skyworks solutions, inc. ? phone [781] 376-3000 ? fax [781] 376-3100 ? sales@skyworksinc.com ? www.skyworksinc.com 202183a ? skyworks proprietary information ? products and product information are subject to change without notice. ? july 24, 2012 typical characteristics load regulation (v out = 1v) output current (ma) load regulation (%) 0. 11 10 100 1000 -0.5 -0.4 -0.3 -0.2 -0.1 0.0 0.1 0.2 0.3 0.4 0.5 v in = 5.5v v in = 4.2v v in = 3.6v v in = 2.7v load regulation (v out = 3v) output current (ma) load regulation (%) 0. 11 10 100 1000 -0.5 -0.4 -0.3 -0.2 -0.1 0.0 0.1 0.2 0.3 0.4 0.5 v in = 5.5v v in = 4.2v v in = 3.6v v in = 2.7v line regulation (v out = 1v) input voltage (v ) line regulation (%) 2. 73 .1 3. 53 .9 4. 34 .7 5. 15 .5 -0.5 -0.4 -0.3 -0.2 -0.1 0.0 0.1 0.2 0.3 0.4 0.5 i out = 300ma i out = 150ma i out = 100ma i out = 1ma line regulation (v out = 3v) input voltage (v ) line regulation (%) 2. 73 .1 3. 53 .9 4. 34 .7 5. 15 .5 -0.5 -0.4 -0.3 -0.2 -0.1 0.0 0.1 0.2 0.3 0.4 0.5 i out = 300ma i out = 150ma i out = 100ma i out = 1ma output voltage error vs. temperature (ldo v out = 1v) temperature (c ) output voltage error (%) 75 50 25 0 -25 -50 100 -1.0 -0.8 -0.6 -0.4 -0.2 0.0 0.2 0.4 0.6 0.8 1.0 i out = 1ma i out = 250ma output voltage error vs. temperature (ldo v out = 3v) temperature (c ) output voltage error (%) 75 50 25 0 -25 -50 100 -1.0 -0.8 -0.6 -0.4 -0.2 0.0 0.2 0.4 0.6 0.8 1.0 i out = 1ma i out = 250ma downloaded from: http:///
7 aa t2605 da ta sheet five-channel 300ma ldo regulator skyworks solutions, inc. ? phone [781] 376-3000 ? fax [781] 376-3100 ? sales@skyworksinc.com ? www.skyworksinc.com 202183a ? skyworks proprietary information ? products and product information are subject to change without notice. ? july 24, 2012 typical characteristics supply current vs. supply voltage (contributed by each ldo) supply voltage (v) supply current () 2. 73 .1 3. 53 .9 4. 34 .7 5. 15 .5 25 26 27 28 29 30 31 32 33 34 35 load transient (v out = 1.85v; v in = 3.6v; i out = 30ma to 300ma) time (200s/div) output voltage (50mv/div) (top) output current (200ma/div) (bottom) 1.80 1.85 1.90 1.95 2.00 -0.2 0.0 0.2 0.4 power supply rejection ratio, psrr (v in(dc) = 5v; v out = 1.9v; i out = 100ma) frequency (hz) psrr (db) 100 1000 10 10000 100000 1000000 0 10 20 30 40 50 60 70 80 downloaded from: http:///
8 aa t2605 da ta sheet five-channel 300ma ldo regulator skyworks solutions, inc. ? phone [781] 376-3000 ? fax [781] 376-3100 ? sales@skyworksinc.com ? www.skyworksinc.com 202183a ? skyworks proprietary information ? products and product information are subject to change without notice. ? july 24, 2012 functional description the AAT2605 includes five ldo regulators. the regula - tors operate from the 2.7v to 5.5v input voltage to a regulated output voltage. each ldo regulator has its own independent enable pin. the ldo regulators have a fixed output programmed during manufacturing. each ldo consumes 30a of quiescent current and is stable with a small 1.0f ceramic output capacitor. these ldos offer high power supply rejection, over-current protec - tion and over-temperature protection. application informationinput capacitor typically, a 2.2f or larger ceramic capacitor is recom - mended for c vcc , c vin3/4 , and c vin5 in most applications. the input capacitor should be located as close to the input (v in ) of the device as practically possible. c vin val - ues greater than 2.2f will offer superior input line tran - sient response and will assist in maximizing the highest possible power supply ripple rejection. functional block diagram control logic otp en3 vin3/4 vo3 otp vcc vo1 en1 vin3/4 otp v ref v ref v ref v ref en4 vo4 otp en5 vin5 vo5 downloaded from: http:///
9 aa t2605 da ta sheet five-channel 300ma ldo regulator skyworks solutions, inc. ? phone [781] 376-3000 ? fax [781] 376-3100 ? sales@skyworksinc.com ? www.skyworksinc.com 202183a ? skyworks proprietary information ? products and product information are subject to change without notice. ? july 24, 2012 output capacitor for proper load voltage regulation and operational sta - bility, a capacitor is required between pins vout and gnd. the c out capacitor connection to the ldo regulator ground pin should be made as direct as practically pos - sible for maximum device performance. the AAT2605's ldo regulators have been specifically designed to function with very low esr ceramic capaci - tors. although the device is intended to operate with these low esr capacitors, it is stable over a very wide range of capacitor esr, thus it will also work with higher esr tantalum or aluminum electrolytic capacitors. however, for best performance, ceramic capacitors are recommended. typical output capacitor values for maximum output cur - rent conditions range from 1f to 10f. thermal calculations there are two types of losses associated with the AAT2605 total power management solution (five ldo regulators): conduction losses and quiescent current losses. conduction losses are associated with the power loss of the voltage difference across the pass switch/fet of the five ldo regulators. at full load, a simplified form of the losses is given by the following (quiescent losses are ignored, since conduction losses are so dominant): p ldo1 = i ldo1 (v cc - v o1 ) p ldo2 = i ldo2 (v cc - v o2 ) p ldo3 = i ldo3 (v in3/4 - v o3 ) p ldo4 = i ldo4 (v in3/4 - v o4 ) p ldo5 = i ldo5 (v in5 - v o5 ) p to ta l = p ldo1 + p ldo2 + p ldo3 + p ldo4 + p ldo5 layout the suggested pcb layout for the AAT2605 is shown in figures 2 and 3. the following guidelines should be used to help ensure a proper layout. 1. the input capacitors (c1, c2 and c3 should connect as closely as possible to vcc, vin3/4 and vin5 (pins 5, 6 and 8) and gnd (pin 7). 2. the resistance of the trace from the load return to gnd (pin 7) should be kept to a minimum. this will help to minimize any error in dc regulation due to differences in the potential of the internal signal ground and the power ground. 3. for good thermal coupling, pcb vias are required from the pad for the tdfn33-14's exposed paddle to the ground plane. downloaded from: http:///
10 aa t2605 da ta sheet five-channel 300ma ldo regulator skyworks solutions, inc. ? phone [781] 376-3000 ? fax [781] 376-3100 ? sales@skyworksinc.com ? www.skyworksinc.com 202183a ? skyworks proprietary information ? products and product information are subject to change without notice. ? july 24, 2012 1f c8 1f c7 2.2f c2 1f c6 1f c5 2.2f c3 1f c4 tp2 vin34 tp3 vin5 tp4 vo5 tp5 vo4 tp6 vo3 tp7 vo2 tp8 vo1 r51m r41m r3 1m r21m r11m 1 10 sw1 vin34 vin34 vin5 vin5 vin34 6 en3 3 en1 1 vc c 5 gn d 7 vin5 8 en2 2 vo1 13 vo3 11 vo5 9 vo4 10 vo2 12 en5 14 en4 4 u1 AAT2605_tdfn33-14 2.2f c1 tp1vcc vcc vcc figure 1: AAT2605 evaluation board schematic. figure 2: AAT2605 evaluation board figure 3: AAT2605 evaluation board top side layout. bottom side layout. downloaded from: http:///
11 aa t2605 da ta sheet five-channel 300ma ldo regulator skyworks solutions, inc. ? phone [781] 376-3000 ? fax [781] 376-3100 ? sales@skyworksinc.com ? www.skyworksinc.com 202183a ? skyworks proprietary information ? products and product information are subject to change without notice. ? july 24, 2012 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 (u nplated) 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. ordering information package marking 1 part number (tape and reel) 2 tdfn33-14 9vxyy AAT2605iwo-1-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 tdfn33-14 3 to p view bottom view 3.000 0.050 index area 3.000 0.050 detail "a" 1.650 0.050 2.500 0.050 0.203 ref 0.50 0.050 0.000 + 0.100 0.000 detail "a" ide view 0.25 0.050 0.00 b 0.10 0.050 in 1 indiator ptional all dimensions in millimeters. downloaded from: http:///
12 aa t2605 da ta sheet five-channel 300ma ldo regulator skyworks solutions, inc. ? phone [781] 376-3000 ? fax [781] 376-3100 ? sales@skyworksinc.com ? www.skyworksinc.com 202183a ? skyworks proprietary information ? products and product information are subject to change without notice. ? july 24, 2012 copyright ? 2012 skyworks solutions, inc. all rights reserved. information in this document is provided in connection with skyworks solutions, inc. (skyworks) pr oducts or services. these materials, including the information contained herein, are provided by sky works as a service to its customers and may be used for informational purposes only by the customer. skyworks a ssumes no responsibility for errors or omissions in these materials or the information contained her ein. sky- works may change its documentation, products, services, speciications 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 conlicts, incompatibilities, or other dificulties arising from any fut ure changes. no license, whether express, implied, by estoppel or otherwise, is granted to any intellectual prope rty rights by this document. skyworks assumes no liability for any materials, products or informatio n provided here- under, including the sale, distribution, reproduction or use of skyworks products, information or ma terials, 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 e xpress, implied, statutory, or otherwise, including fitness for a particular purpose or use, merchantability, performance, quality or non-infringement of any intellectual proper ty 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, i ncluding 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, o r 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 applicatio ns 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 dev iate from published speciications as a result of design defects, errors, or operation of products ou tside of pub- lished parameters or design speciications. customers should include design and operating safeguards to minimize these and other risks. skyworks assumes no liability for applications assistance, custom er product design, or damage to any equipment resulting from the use of skyworks products outside of stated pub lished speciications 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 identiication 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 refere nce. downloaded from: http:///

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