unisonic technologies co., ltd lm39102 preliminary cmos ic www.unisonic.com.tw 1 of 5 copyright ? 2016 unisonic technologies co., ltd qw-r102-060.c 1a low-voltage low-dropout regulator ? description the utc lm39102 is a low-dropout linear voltage regulator that provide low-voltage, high-current output. the utc lm39102 can be used in a wide field because of adjustable output. utc lm39102 is fully protected with over current limiting, thermal shutdown , and reversed-battery protection. ? features * adjustable output voltages refer to 1.24v * dropout voltage 410mv at 1a output ideal for 3.0v~2.5v conversion ideal for 2.5v~1.8v or 1.5v conversion * a very low ground current (typically 12ma at 1a) * on/off control function * 1% initial accuracy * built-in current limiting and thermal shutdown * reversed-battery protection * reversed-leakage protection * fast transient response sop-8 hsop-8 ? ordering information ordering number package packing LM39102G-S08-R sop-8 tape reel lm39102g-sh2-r hsop-8 tape reel ? marking
lm39102 preliminary cmos ic unisonic technologies co., ltd 2 of 5 www.unisonic.com.tw qw-r102-060.c ? pin configuration ? pin description pin no. pin name description 1 en on/off control terminal 2 in power supply 3 out regulator output 4 adj adjustment terminal: feedback input 5, 6, 7, 8 gnd ground ? block diagram
lm39102 preliminary cmos ic unisonic technologies co., ltd 3 of 5 www.unisonic.com.tw qw-r102-060.c ? absolute maximum rating parameter symbol ratings unit supply voltage v in 18v v enable voltage v en +20 v junction temperature t j -40 ~ +125 c storage temperature t stg -65 ~ +150 c note: absolute maximum ratings are those values be yond which the device could be permanently damaged. absolute maximum ratings are stress ratings only and functional device oper ation is not implied. ? operating ratings (note 1) parameter symbol ratings unit supply voltage v in +2.25 ~ +16 v enable voltage v en +16 v maximum power dissipation p d note 2 notes: 1. the device is not guaranteed to function outside its operating rating. 2. p d(max) =(t j (max)-t a) + ja , where ja -junction-to-ambient thermal resistance. ? thermal data parameter symbol ratings unit sop-8 50 c/w junction to case hsop-8 jc 45 c/w
lm39102 preliminary cmos ic unisonic technologies co., ltd 4 of 5 www.unisonic.com.tw qw-r102-060.c ? electrical characteristics (v in =v out +1v, v en =2.25v, t j =25c, bold values indicate 0c t j +125c, unless noted) parameter symbol test conditions min typ max unit 10ma -1 1 % output voltage v out 10ma i out 1a, v out +1v v in 8v -2 2 % line regulation i out =10ma, v out +1v v in 16v 0.06 0.5 % load regulation v in =v out +1v, 10ma i out 1a 0.2 1 % output voltage temperature coefficient (note 1) ? v out / ? t 40 100 ppm/c 150 200 mv i out =100ma, ? v out =-1% 250 mv i out =500ma, ? v out =-1% 275 mv i out =750ma, ? v out =-1% 330 500 mv 410 550 mv dropout voltage (note 2) v do i out =1a, ? v out =-1% 630 mv i out =100ma, v in =v out +1v 700 a i out =500ma, v in =v out +1v 4 ma i out =750ma, v in =v out +1v 7 ma ground current (note 3) i gnd i out =1a, v in =v out +1v 12 20 ma current limit i out(lim) v out =0v, v in =v out +1v 1.8 2.5 a enable input logic low (off) 0.8 v enable input voltage v en logic high (on) 2.25 v 1 15 30 a v en =2.25v 75 a 2 a enable input current i en v en =0.8v 4 a 1.228 1.240 1.252 v 1.215 1.265 v reference voltage note 4 1.203 1.277 v 40 80 na adjust pin bias current 120 na reference voltage temperature coefficient (note 1) 20 ppm/c adjust pin bias current temperature coefficient 0.1 99.2 na/c notes: 1. output voltage te mperature coefficient is ? v out(worst case) +(t j(max) -t j(min) ) where t j(max) is +125c and t j(min) is 0c. 2. v do =v in -v out when v out decreases to 99% of its no minal output voltage with v in =v out +1v. for output voltages below 2.25v, dropout voltag e is the input-to-output voltage differential with the minimum input voltage being 2.25v. minimum input operating voltage is 2.25v. 3. i gnd is the quiescent current. i in =i gnd +i out . 4. v ref v out (v in -1v), 2.25v v in 16v, 10ma i l 1a.
lm39102 preliminary cmos ic unisonic technologies co., ltd 5 of 5 www.unisonic.com.tw qw-r102-060.c ? typical application circuit + 10f tantalum utc lm39102 in out 1.5v v in 2.5v en gnd adj r1 r2 1.5v/1a adjustable regulator utc assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all utc products described or contained herein. utc products are not designed for use in life support appliances, devices or systems where malfunction of these products can be reasonably expected to result in personal injury. reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. the information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice.
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