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aic1733 500ma, low dropout linear regulator with shutdown analog integrations corporation si-soft research center ds-1733g-01 120408 3a1, no.1, li-hsin rd. i , science park , hsinchu 300, taiwan , r.o.c. tel: 886-3-5772500 fax: 886-3-5772510 www.analog.com.tw 1 features active low shutdown control. very low quiescent current. very low dropout voltage of 650mv at 500ma output current (3.0 v output version) 1.3v, 1.5v, 1.8v, 2.5v, 2.8v, 3.0v, 3.3v output voltage. short circuit and thermal protection. 2% output tolerance. miniature package: sot-23-5, to-252-5, sot-89-5 applications pda dsc notebook pagers personal communication equipment cordless telephones portable instrumentation portable consumer equipment battery powered systems description aic1733 is a 500ma low noise, low dropout linear regulator, and is housed in small sot-23-5 package. the device is in the ?on? state when the shdn pin is set to logic high level. an internal p-mosfet pass transistor is used to achieve 650mv low dropout voltage at 500ma load current. it offers high precision output voltage of 2%. the quality of low quiescent current and low dropout voltage makes this device ideal for battery power applications. the internal reverse bias protection eliminates the requirement for a reverse voltage protection diode. the high ripple rejection and low noise of aic1733 provide enhanced performance for critical applications. the noise bypass pin can be connected an external capacitor to reduce the output noise level. typical application circuit c in 1 f v in bp vout shdn gnd vin aic1733 c out 4.7 f (note1) c bp 0.1 f shdn v out + + low noise low dropout linear regulator
aic1733 2 ordering information packing type tr: tape & reel bg: bag package type x5: sot-89-5 v: sot-23-5 e5: to-252-5 p: lead free commercial g: green package (to-252-5 is not available in green package) output voltage 13: 1.3v 15: 1.5v 18: 1.8v 25: 2.5v aic1733-xx xxxx pin configuration sot-23-5 top view 1: vin 2: gnd 3: shdn 4: bp 5: vout 3 2 1 4 5 (of a unit of 0.1v within the voltage range from 1.3v to 3.3v, additional voltage versions for this product line may be available on demand with prior consultation with aic.) example: aic1733-18px5tr 1.8v version, in sot-89-5 lead free package & tape & reel packing type aic1733-18pvtr 1.8v version, in sot-23-5 lead free package & tape & reel packing type 2 1 3 5 4 sot-89-5 top view 1: vin 2: gnd 3: shdn 4: bp 5: vout 1 2 3 4 5 to-252-5 top view 1: shdn 2: vin 3: gnd 4: vout 5: n/c 28: 2.8v 30: 3.0v 33: 3.3v ? sot-89-5 marking part no. marking part no. marking part no. marking aic1733-13cx5 ei13 aic1733-13px5 ei13p aic1733-13gx5 ei13g aic1733-15cx5 ei15 aic1733-15px5 ei15p aic1733-15gx5 ei15g aic1733-18cx5 ei18 aic1733-18px5 ei18p aic1733-18gx5 ei18g aic1733-25cx5 ei25 aic1733-25px5 ei25p aic1733-25gx5 ei25g aic1733-28cx5 ei28 aic1733-28px5 ei28p aic1733-28gx5 ei28g aic1733-30cx5 ei30 aic1733-30px5 ei30p aic1733-30gx5 ei30g a ic1733-33cx5 ei33 aic1733-33px5 ei33p aic1733-33gx5 ei33g ? sot-23-5 marking part no. marking part no. marking part no. marking aic1733-13cv ee13 AIC1733-13PV ee13p aic1733-13gv ee13g aic1733-15cv ee15 aic1733-15pv ee15p aic1733-15gv ee15g aic1733-18cv ee18 aic1733-18pv ee18p aic1733-18gv ee18g aic1733-25cv ee25 aic1733-25pv ee25p aic1733-25gv ee25g aic1733-28cv ee28 aic1733-28pv ee28p aic1733-28gv ee28g aic1733-30cv ee30 aic1733-30pv ee30p aic1733-30gv ee30g aic1733-33cv ee33 aic1733-33pv ee33p aic1733-33gv ee33g
aic1733 3 absolute maximum ratings supply voltage .......... .......????????????..?????? ?.............. ......12v shutdown terminal voltag e ..??????????????? ??????..............8v noise bypass terminal voltage .???????????. ?????????..............5v operating temperature range .??????????????? ????.....-40oc~85oc maximum junction temperature 125 c storage temperature range .......... ......? ?????????????.........-65oc~150oc lead temperature (soldering, 10 sec) 260 c thermal resistance (junction to case) sot -23-5?....???..???..????.130 c /w to-252-5?..??..?..???????..12.5 c /w sot-89-5?..??..?..????????..30 c /w thermal resistance junction to am bient sot-23-5?....??..?????..???..220 c /w to-252-5?....????.?..??..???.100 c /w sot -89-5?....?????...??..???.160 c /w (assume no ambient airflow, no heatsink) absolute maximum ratings are those values beyond which the life of a device may be impaired. test circuit refer to typical application circuit.
aic1733 4 electrical characteristics (c in =1 f, c out =4.7 f, t j =25 c, unless otherwise specified) (note2) parameter test conditions symbol min. typ. max. unit quiescent current i out = 0ma, v in = 3.6~7v i q 40 55 a standby current v in = 3.6~7v, output off i stby 0.1 a gnd pin current i out = 0.1~500ma i gnd 30 50 a continuous output current v in = 5v i out 500 ma output current limit v in = 5v, v out = 0v i il 500 600 ma output voltage tolerance v in = 5v, no load v out -2 2 % temperature coefficient tc 50 150 ppm/oc line regulation v in = v out(typ) + 1v to 7v ?v lir 3 10 mv load regulation v in = v out + 1.2v (vout 2.5v) v in = v out + 1.8v (vout 2.4v) i out = 0.1~500ma ?v lor 20 40 mv dropout voltage i l =500ma 3.0v v out 3.3v 2.5v v out 2.9v 2.0v v out 2.4v 1.3v v out 1.9v v drop 650 780 1100 1400 1050 1180 1500 1800 mv noise bypass terminal voltage v ref 1.23 v output noise c bp = 0.1 f, f = 1khz,v in = 5v ?n 0.46 hz v ripple rejection f = 1khz, ripple = 0.5v p-p , c bp = 0.1 f rr 55 db shutdown pin current i shdn 0.1 a shutdown pin voltage (on) output on v shdn (on) 1.6 v shutdown pin voltage (off) output off v shdn (off) 0.6 v shutdown exit delay time c bp = 0.1 f, c out = 1 f, i out =30ma ?t 300 s thermal shutdown temperature t sd 155 oc note 1: to avoid output oscillation, aluminum electrol ytic output capacitor is recommended and ceramic capacitor is not suggested. note 2: specifications are production tested at t a =25 c. specifications over the -40 c to 85 c operating temperature range are assured by design, characterization and correlation with statistical quality controls (sqc).
aic1733 5 typical performance characteristics 0 1 2 3 4 5 6 7 0 10 20 30 40 50 60 fig. 1 quiescent current vs. v in 3.3v 1.5v quiescent current ( a ) v in (v) fig. 2 v drop vs. i load v drop (mv) i load (ma) 0 50 100 150 200 250 300 350 400 450 500 0 100 200 300 400 500 600 700 a ic1733-33 t a =50 c t a =80 c t a =-40 c t a =20 c fig. 3 ground current vs. i load ground current ( a) i load (v) 0 50 100 150 200 250 300 350 400 450 500 39.0 39.5 40.0 40.5 41.0 41.5 42.0 42.5 43.0 43.5 44.0 v in =5v t=25 c 3.3v 1.5v fig. 4 input voltage vs. short circuit current short circuit current (ma) input voltage(v) 0 1 2 3 4 5 6 7 0 100 200 300 400 500 600 700 800 1.5v 3.3v fig. 5 ground current vs. temperature ground current ( a) temperature ( c) -40 -20 0 20 40 60 80 100 39 40 41 42 43 44 45 a ic1733-33 150ma 300ma 500ma fig. 6 quiescent vs. temperature quiescent current (( a) temperature ( c) -40 -20 0 20 40 60 80 100 36 38 40 42 44 46 v in = 5v 3.3v 1.5v
aic1733 6 typical performance characteristics (continued) fig. 7 current limit vs. temperature current limit (ma) temperature ( c) -40 -20 0 20 40 60 80 100 560 600 640 680 720 760 800 840 v in =7v v in =6v v in =5v fig. 8 v out vs. temperature output voltage (v) temperature ( c) -40 -20 0 20 40 60 80 100 1.40 1.42 1.44 1.46 1.48 1.50 1.52 1.54 1.56 1.58 1.60 v in = 5v aic1733-15 fig. 9 v out vs. temperature output voltage (v) temperature ( c) -40 -20 0 20 40 60 80 100 3.10 3.15 3.20 3.25 3.30 3.35 3.40 3.45 3.50 v in =5v a ic1733-33 0 50 100 150 200 250 300 350 400 450 500 1.00 1.05 1.10 1.15 1.20 1.25 1.30 1.35 1.40 a ic1733-15 v drop (v) i out (ma) fig. 10 v drop vs. i load t a =-40 o c t a =85 o c t a =50 o c t a =20 o c 0 50 100 150 200 250 300 350 400 450 500 0 100 200 300 400 500 600 700 800 a ic1733-25 fig. 11 v drop vs. i load i out (ma) v drop (mv) t a =85 o c t a =-40 o c t a =50 o c t a =20 o c
aic1733 7 typical performance characteristics (continued) fig. 12 shutdown exit time i out =30ma c bp =0.1 f, c out =1 f v shdn v out fig. 13 shutdown exit time i out =30ma c bp =0.1 f c out =4.7 f v shdn v out fig. 14 shutdown exit time i out =30ma c bp =0.1 f, c out =10 f v shdn v out fig. 15 line transient response v out =3.3v c in =1 f, c out =1 f c bp =0.1 f iout=50m a vin=v out +1v vin=v out +2v fig. 16 line transient response v out =3.3v c in =1 f, c out =4.7 f c bp =0.1 f iout=50m a vin=v out +1v vin=v out +2v fig. 17 line transient response v out =1.5v c in =1 f, c out =1 f c bp =0.1 f iout=50m a vin=v out +1v vin=v out +2v
aic1733 8 typical performance characteristics (continued) fig. 18 line transient response v out =1.5v c in =1 f, c out =4.7 f c bp =0.1 f iiout=50m a vin=v out +1v vin=v out +2v fig. 19 load transient response c out =4.7 f c bp =0.1 f i out =120ma i out =180ma v out fig. 20 load transient response c out =1 f c bp =0.1 f i out =120ma i out =180ma v out
aic1733 9 block diagram current limiting error amp. - + thermal limiting vout power shutdown bp vin v ref 1.23v gnd shdn pin descriptions pin 1 : vin - power supply input pin. bypass with a 1 f capacitor to gnd pin 2 : gnd - ground pin. pin 3 : shdn - active-low shutdown input pin. pin 4 : bp - noise bypass pin. an external bypass capacitor connected to bp pin reduces noises at the output. pin 5 : vout - output pin. sources up to 500 ma. detailed descriptions of technical terms dropout voltage (v drop ) the dropout voltage is defined as the difference between the input voltage and output voltage at which the output voltage drops 100mv. below this value, the output voltage will fall as the input voltage reduces. it depends on the load current and junction temperature. line regulation line regulation is the ability of the regulator to maintain a constant output voltage as the input voltage changes. the line regulation is specified as the input voltage changes from v in = v out + 1v to v in = 7v and i out = 1ma. load regulation load regulation is the ability of the regulator to maintain a constant output voltage as the load current changes. a pulsed measurement with an input voltage set to v in = v out + v drop can minimize temperature effects. the load regulation is specified by the output current ranging from 0.1ma to 500ma.
aic1733 10 current limit (i il ) aic1733 includes a current limiting, which monitors and controls the maximum output current if the output is shorted to ground. this can protect the device from being damaged. thermal protection thermal sensor protects device when the junction temperature exceeds t j = +155oc. it signals shutdown logic, turning off pass transistor and allowing ic to cool down. after the ic?s junction temperature cools by 15oc, the thermal sensor will turn the pass transistor back on. thermal protection is designed to protect the device in the event of fault conditions. for a continuous operation, do not exceed the absolute maximum junction-temperature rating of t j = 150oc, or damage may occur to the device. application information input-output capacitors linear regulators require input and output capacitors to maintain stability. input capacitor at 1 f with a 4.7uf aluminum electrolytic output capacitor is recommended. noise bypass capacitor 0.1 f bypass capacitor at bp pin reduces output voltage noise. and the bp pin has to connect a capacitor to gnd. power dissipation the maximum power dissipation of aic1733 depends on the thermal resistance of its case and circuit board, the temperature difference between the die junction and ambient air, and the rate of airflow. the rate of temperature rise is greatly affected by the mounting pad configuration on the pcb, the board material, and the ambient temperature. when the ic mounting with good thermal conductivity is used, the junction temperature will be low even when large power dissipation applies. the power dissipation across the device is p = i out (v in -v out ). the maximum power dissipation is: )r (r )t(t p ba jb aj max + ? = where t j -t a is the temperature difference between the die junction and the surrounding air, r jb is the thermal resistance of the package, and r ba is the thermal resistance through the pcb, copper traces, and other materials to the surrounding air. as a general rule, the lower temperature is, the better reliability of the device is. so the pcb mounting pad should provide maximum thermal conductivity to maintain low device temperature. gnd pin performs a dual function of providing an electrical connection to ground and channeling heat away. therefore, connecting the gnd pin to ground with a large pad or ground plane would increase the power dissipation and reduce the device temperature
aic1733 11 physical dimensions sot-23-5 (unit: mm) c a a2 b with plating view b l1 l seating plane gauge plane 0.25 a1 section a-a base metal e1 d e aa e1 see view b e 0 0.90 0.30 1.50 2.60 2.80 0.08 0.30 0.05 e l1 l e1 c e e1 d b a2 a1 0.95 bsc 8 0.60 1.90 bsc 0.60 ref 1.30 1.70 3.00 3.00 0.22 0.50 0.15 0.95 min. s y m b o l a1 . 4 5 max. sot-25 millimeters note : 1. refer to jedec mo-178aa. 2. dimension "d" does not include mold flash, protru sions or gate burrs. mold flash, protrusion or gate bu rrs shall not exceed 10 mil per side. 3. dimension "e1" does not include inter-lead flash or protrusions. 4. controlling dimens ion is millimeter, converted in ch dimensions are not necessarily exact.
aic1733 12 to-252-5 (unit: mm) l2 gauge plane l1 l a1 view b section a-a b seating plane with plating base metal c l3 d e e a a b3 h a see view b c2 0 0.51 0.89 1.40 9.40 6.35 5.33 0.46 0.46 4.32 0.00 e l3 q l2 l1 l h c d e c2 b3 b a1 1.27 bsc 8 2.03 1.78 10.41 0.51 bsc 2.67 ref 0.71 6.73 6.22 0.89 0.61 5.46 0.13 2.19 min. s y m b o l a 2.38 max. to-252-5l millimeters note: 1. refer to jedec to-252ad and ab. 2. dimension "e" does not include mold flash, protrus ions or gate burrs. mold flash, protrusion or gate bur rs shall not exceed 6 mil per side . 3. dimension "d" does not include inter-lead flash or protrusions. 4. controlling dimension is millimeter, converted inc h dimensions are not necessarily exact.
aic1733 13 sot-89-5 (unit: mm) note: information provided by aic is believed to be accurate and reliable. however, we c annot assume responsibility for use of any circuitry other than circuitry entirely embodi ed in an aic product; nor for any infringement of patents or other rights of third parties that may result from its use. we reserve the right to change the circuitry and specif ications without notice. life support policy: aic does not authorize any aic product for use in life support devices and/or systems. life support device s or systems are devices or systems which, (i) are intended for surgic al implant into the body or (ii) support or sustain life, and whose failure to perform, when properly used in accordance with in structions for use provided in the labeling, can be reasonably expected to result in a significant injury to the user. a e b e1 e l d d1 h c 1.50 bsc 3.00 bsc l 0.80 e h e1 e d1 3.94 2.29 1.50 1.20 1.83 4.25 2.60 sot-89-5 millimeters s y m b o l c d b a 0.36 4.40 0.35 1.40 min. 1.60 max. 0.44 4.60 0.56 note: 1. refer to jedec to-243aa. 2. dimension "d" does not include mold flash, protrus ions or gate burrs. mold flash, protrusion or gate bur rs shall not exceed 6 mil per side. 3. dimension "e" does not include inter-lead flash or protrusions. 4. controlling dimension is millimeter, converted inc h dimensions are not necessarily exact.

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