aic1721/1721d 3-pin low dropout linear regulator analog integrations corporation 4f, 9, industry e. 9th rd, science based industrial park, hsinchu taiwan, roc www.analog.com.tw ds-1721-01 tel: 886-3-5772500 fax: 886-3-5772510 1 features low dropout voltage of 130mv at 100ma output current (5v output version). guaranteed 150ma/300ma output current. internal 1.3 ? p-mosfet draws no base current. low ground current at 55 a. 1% accuracy output voltage of 3.3v/5v. input voltage range up to 12v (5v output version). extremely tight load and line regulation. fast transient response. needs only 1 f for stability. current and thermal limiting. applications voltage regulator for lan cards. wireless communication systems. battery powered systems. description the aic1721/1721d is the enhanced cmos version of the lp2950. the superior characteristics of the aic1721/1721d include zero base current loss, very low dropout voltage, and 1% accuracy output voltage. typica-l ground current remains approximately 55 a, from no load to maximum loading conditions. dropout voltage at 100ma output current is significantly lower than its bipolar counterpart: 130mv for the aic1721-5/1721d-5, and 180mv for the aic1721/ 1721d. output current limiting and thermal limiting are built in to provide maximal protection to the aic1721/ 1721d against fault conditions. while pin-to-pin compatible with the lp2950 and the industry industry standard 78xx series of voltage regulators, the aic1721/1721d comes in the popular3-pin sot-89 or to-92 packages. typical application circuit + + aic1721 / aic1721d 10 negative voltage regulator
aic1721 2 ordering information order number aic1721cx aic1721-5cx aic1721dcx aic1721d-5cx (sot-89) AIC1721CZ aic1721-5cz aic1721dcz aic1721d-5cz (to-92) pin configuration front view 1: vout 2: gnd 3: vin aic1721x-xxx 1 2 3 123 packaging type x: sot-89 z: to-92 temperature range c: 0 c~+70 c output voltage default: 3.3v 5: 5.0v output current default: 150ma d: 300ma top view 1: vout 2: gnd 3: vin absolute maximum ratings input supply voltage .................................????......??................................ -0.3~12v operating junction temperature range ..............?.....??..?.?.... .......... -40 c~ 125 c storage temperature range ..............................?.???........................ -65 c~150 c power dissipation sot-89 package ..?.??.?........... 0. 80w to-92 package .......??.?............ 0.78w test circuit refer to the typical application circuit
aic1721 3 electrical characteristics (ta=25 c, c in =1 f, c out =10 f, unless otherwise specified.) parameter test conditions min. typ. max. unit output voltage no load aic1721/1721d-5 aic1721/1721d v in =5.5~12v v in =3.6~12v 4.950 3.267 5.0 3.3 5.050 3.333 v output voltage temperature coefficiency (note 1) 50 150 ppm/ c line regulation i l =1ma aic1721/1721d-5 aic1721/1721d v in =5.5~12v v in =3.6~12v 3 3 10 10 mv load regulation (note 2) aic1721-5 aic1721d-5 aic1721 aic1721d v in =7v, i l =0.1~150ma v in =7v, i l =0.1~300ma v in =5v, i l =0.1~150ma v in =5v, i l =0.1~300ma 7 7 7 7 15 25 15 25 mv current limit (note 3) aic1721-5 aic1721 aic1721d-5 aic1721d v in =7v, v out =0v v in =5v, v out =0v v in =7v, v out =0v v in =5v, v out =0v 320 320 320 320 440 440 440 440 ma dropout voltage (note 4) aic1721/1721d aic1721-5 aic1721 aic1721d-5 aic1721d i l =0.1ma i l =150ma i l =150ma i l =300ma i l =300ma 0.2 200 270 400 540 10 300 370 500 640 mv ground current i o =0.1ma~i max aic1721/1721d-5 aic1721/1721d v in =5.5~12v v in =4~12v 55 55 80 80 a note 1: guaranteed by design. note 2: regulation is measured at constant junction temperature, using pulse testing with a low on time. note 3: current limit is measured by pulsing a short time. note 4: dropout voltage is defined as the input to output differential at which the output voltage drops 100mv below the value measured with a 1v differential.
aic1721 4 block diagram + vout vin gnd - + - v ref typical performance characteristics output voltage vs. temperature normalized out p ut volta g e ( % ) temperature ( c) 0 50 100 98 99 100 101 102 0 -40 125 ground current vs. input voltage ground current ( a) input voltage (v) 0 10 20 30 40 50 60 02468 10 12 ground current vs. temperature ground current ( a) temperature( c) 125 02550 75 100 -25 -50 50 52 54 56 58 60 i l =0.1ma i l =150ma i l =300ma dropout voltage vs load current dropout voltage (mv) load current ( ma ) 600 0 50 100 150 200 250 300 0 100 200 300 400 500 v out =3.3v v out =5v
aic1721 5 typical performance characteristics (continued) temperature( c) dropout voltage vs temperature dropout voltage(mv) 0 25 50 75 100 125 -25 -50 0 100 200 300 400 500 600 i l =0.1ma v out =5v i l =150ma i l =300ma temperature ( c) short circuit current vs. temperature short circuit current (ma) 02550 75 100 125 -25 -50 200 300 400 500 aic1721d aic1721 line transient response time (ms) input voltage (v) output voltage (mv, ac) 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 100 50 0 -50 8 6 c out =1 f i l =1ma v out =5v load transient res p onse time ( ms) load current (ma) output voltage (mv) 150 0.1 100 0 -100 -200 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 c out =1 f v out =5v load transient response time (ms) load current (ma) output voltage (mv, ac) 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 20 0 -20 150 0.1 c out =10 f v out =5v -40 -60
aic1721 6 physical dimensions sot-89 (unit: mm) symbol min max a 1.40 1.60 b 0.36 0.48 c 0.35 0.44 d 4.40 4.60 d1 1.62 1.83 e 2.29 2.60 e 1.50 (typ.) e1 3.00 (typ.) h 3.94 4.25 b e h e1 d d1 a c l e l 0.89 1.20 sot89 marking part no. marking aic1714-30 ap30 aic1714-33 ap33 aic1714-50 ap50 to-92 (unit: mm) symbol min max a 4.32 5.33 c 0.38 (typ.) d 4.40 5.20 e 3.17 4.20 e1 1.27 (typ.) a l e1 d c e l 12.7 -
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