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l r75xx 100ma cmos low power ldo block diagram leshan radio company, ltd. 1/9
features low pow er consumption low voltage drop low temperature coefficient high input voltage (up to 24v) high output current : 100ma (p d ? 250mw ) output voltage accuracy : tolerance3% t o -92, sot - 89 and sot - 25 package applications battery -pow ered equipment communication equipment audio/video equipment general description t he lr75xx- 1 series is a set of three-termin a l hig h current lo w v o lt age re gul ator i m pleme n ted i n cmos technology . t hey can deliver 100ma output current and a l l o w an in put volta ge as hig h as 24v. t h e y are available w i th several fixed output voltages ranging from 3.0v to 5.0v. cmos technology ensures low voltage drop and low quiescent current. although designed primarily as fi xed voltage regulators, these devices can be used w i th external components to obtain variable voltages and currents. selection table part no. output voltage t o l eran ce packag e marking l r 7 5 3 0 - 1 3 . 0 v 3 % lr7533-1 3 . 3 v 3 % lr7536-1 3 . 6 v 3 % lr7544-1 4 . 4 v 3 % lr7550-1 5 . 0 v 3 % t o -92 sot - 89 sot - 25 75xx-1 (for t o -92) 75xx-1 (for sot - 89) 5xx (for sot - 25) note: ?xx?stands for output voltages. f o r lead fre e d e vices, t o -92 packa ge w i ll a d d a ?#?mark at the en d of the d a te cod e , w h er eas sot - 89 & sot - 25 packages w ill add a ?#?mark at the end of the marking.
pin assignment leshan radio company, ltd. l r75xx 2/9

absolute maximum ratings supply voltage ................. ................. 0.3v to 26v storage t e mper ature .....................-50 to 125 po w e r consumption (*1) ..... .... ... .. . ... ... ... ..2 50mw operating t e mperature ....... .... . .... ... ...-40 to 85 pow e r consumpti on (*2) ...........................150mw note: t hese are stress ratings only . stresses ex ceeding the range specifi ed under?absolute maximum ratings?may cause substantial damage to the device. f unctional operat ion of this device at other conditions bey ond those listed in t he specification is not impli ed and prolonged exposure to extreme conditions may affect device reliability . *1: applied to sot 89 and t o -92 *2: applied to sot - 25
leshan radio company, ltd. l r75xx 3/9 electrical characteristics l r7530-1, +3.0v output type ta=25 te s t conditions sy mbol parameter vin condition min. ty p. max. unit v out o u tput v o ltage t o lerance 5 v i out = 1 0 m a 2 . 9 1 3 . 0 3 . 0 9 v i out output current 5v ii 6 0 1 0 0 ii ma ? v out load regulation 5v 1ma ? i out ? 50ma 6 0 1 5 0 m v v dif voltage drop ii i out =1 ma ii 100 ii mv i ss current consumption 5v no load ii 3 . 5 7 0 a ? v out ? v in ? v out line regulation ii 4v ? v in ? 24v i out =1 ma ii 0 . 2 ii % / v v in input voltage ii ii ii ii 2 4 v ? v out ? ta t e mperature coefficient 5v i out = 10ma 0 < t a< 70 ii 0 . 4 5 ii m v / l r7533-1, +3.3v output type ta=25 te s t conditions sy mbol parameter vin condition min. ty p. max. unit v out o u tput v o ltage t o lerance 5.5v i out = 1 0 m a 3 . 2 0 1 3 . 3 3 . 3 9 9 v i out output current 5.5v ii 6 0 1 0 0 ii ma ? v out load regulation 5.5v 1ma ? i out ? 50ma 6 0 1 5 0 m v v dif voltage drop ii i out =1 ma ii 100 ii mv i ss current consumption 5.5v no load ii 3 . 5 7 0 a ? v out ? v in ? v out line regulation ii 4.5v ? v in ? 24v i out =1 ma ii 0 . 2 ii % / v v in input voltage ii ii ii ii 2 4 v ? v out ? ta t e mperature coefficient 5.5v i out = 10ma 0 < t a< 70 ii 0 . 5 ii m v /
leshan radio company, ltd. l r75xx 4/9 l r7536-1, +3.6v output type ta=25 te s t conditions sy mbol parameter vin condition min. ty p. max. unit v out o u tput v o ltage t o lerance 5.6v i out = 1 0 m a 3 . 4 9 2 3 . 6 3 . 7 0 8 v i out output current 5.6v ii 6 0 1 0 0 ii ma ? v out load regulation 5.6v 1ma ? i out ? 50ma 6 0 1 5 0 m v v dif voltage drop ii i out =1 ma ii 100 ii mv i ss current consumption 5.6v no load ii 3 . 5 7 0 a ? v out ? v in ? v out line regulation ii 4.5v ? v in ? 24v i out =1 ma ii 0 . 2 ii % / v v in input voltage ii ii ii ii 2 4 v ? v out ? ta t e mperature coefficient 5.6v i out = 10ma 0 < t a< 70 ii 0 . 6 ii m v / l r7544-1, +4.4v output type ta=25 te s t conditions sy mbol parameter vin condition min. ty p. max. unit v out o u tput v o ltage t o lerance 6.4v i out = 1 0 m a 4 . 2 6 8 4 . 4 4 . 5 3 2 v i out output current 6.4v ii 6 0 1 0 0 ii ma ? v out load regulation 6.4v 1ma ? i out ? 50ma 6 0 1 5 0 m v v dif voltage drop ii i out =1 ma ii 100 ii mv i ss current consumption 6.4v no load ii 3 . 5 7 0 a ? v out ? v in ? v out line regulation ii 5.4v ? v in ? 24v i out =1 ma ii 0 . 2 ii % / v v in input voltage ii ii ii ii 2 4 v ? v out ? ta t e mperature coefficient 6.4v i out = 10ma 0 < t a< 70 ii 0 . 7 ii m v /
application circuits basic circuits high output current positive voltage regulator leshan radio company, ltd. l r75xx 5/9 lr75xx lr75xx

l r7550-1, +5.0v output type ta=25 te s t conditions sy mbol parameter vin condition min. ty p. max. unit v out o u tput v o ltage t o lerance 7 v i out = 1 0 m a 4 . 8 5 5 . 0 5 . 1 5 v i out output current 7v ii 1 0 0 1 5 0 ii ma ? v out load regulation 7v 1ma ? i out ? 70ma 6 0 1 5 0 m v v dif voltage drop ii i out =1 ma ii 100 ii mv i ss current consumption 7v no load ii 3 . 5 7 0 a ? v out ? v in ? v out line regulation ii 6v ? v in ? 24v i out =1 ma ii 0 . 2 ii % / v v in input voltage ii ii ii ii 2 4 v ? v out ? ta t e mperature coefficient 7v i out = 10ma 0 < t a< 70 ii 0 . 7 5 ii m v /
short-circuit protection by tr1 circuit for increasing output voltage circuit for increasing output voltage lr75xx lr75xx lr75xx leshan radio company, ltd. l r75xx 6/9

v=v(1+ r2 r1 )+i r2 out xx ss

v=v+v out xx d1

constant current regulator dual supply package information 3-pin to-92 outline dimensions lr75xx lr75xx leshan radio company, ltd. l r75xx 7/9 i= v r +i out xx a ss

" #

! lr75xx
dimensions in mil symbol min. nom. max. a 170 ?a 200 b 170 ?a 200 c 500 ?a ?a d 11 ?a 20 e 90 ?a 110 f 45 ?a 55 g 45 ?a 65 h 130 ?a 160 i 8 ?a 18 | 4 o ?a 6 o 3-pin sot-89 outline dimensions dimensions in mil symbol min. nom. max. a 173 ?a 181 b 64 ?a 72 c 90 ?a 102 d 35 ?a 47 e 155 ?a 167 f 14 ?a 19 g 17 ?a 22 h ?a 59 ?a i 55 ?a 63 j 14 ?a 17 leshan radio company, ltd. l r75xx 8/9
leshan radio company, ltd. l r75xx 9/9 5 - pin sot-2 5 outline dime ns ions dime ns ions in mm sy mbol min. nom. max. a 1 . 0 0 ii 1.30 a1 ii ii 0.10 a 2 0 . 7 0 ii 0.9 b 0 . 3 5 ii 0.5 c 0 . 1 0 ii 0.25 d 2 . 7 0 ii 3.10 e 1 . 4 0 ii 1.80 e ii 1.09 ii h 2 . 6 0 ii 3 l 0 . 3 7 ii ii ? 1 9

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