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  l t 85 84 w w w . ic108.com.cn 1 o f 1 1 lt 85 84 ? ? ? ? ? ? pfm ? ? d c -dc lt 85 84 ? ? ? ? , ?? ?? ? ? ? l t 85 84 p a c k a g e t y p e: t : s o t - 2 3 -3 f : s o t - 2 3 -5 e : s o t - 89 o utp u t v o l t a g e: 2 0 : 2. 0v 2 1 : 2. 1v 5 4 : 5. 4v 5 5 : 5. 5v x xx ? : 9 5 % ? ?? : 3 0 0 k h z ? ?? 1 5 u a ? ? : 2 . 5v 5 . 0v 0 . 1v ? : 2 . 5 % ? ? 0 . 9v 5 . 0 v ? ? ? s o t - 8 9 ?| ? 1 3 ??? ? l ed ? l ed ???? m p3 ??? ?? v cr p da ??? 4 7 uh + - v in lx v o ut g nd l t 8 5 8 4 lx xe 1 0 0 uf v o ut l co en 10 0 uf c in ? p fm ? d c - dc l t 8584 www.datasheet.co.kr datasheet pdf - http://www..net/
l t 85 84 w w w . ic108.com.cn 2 o f 1 1 ? b a n d gap p fm c o n t rol o sc 3 0 0 k hz bu f f er e rr or c u r re nt l i m it i ng c o m pa r a t or + - a mp l i f i er v o ut lx en c h ip e n a ble g nd + - 1 .2 4v ?? p i n n a me l t 8584 xx t s o t - 23 - 3 l t 8 5 84 x x f s o t - 23 - 5 lt 8584 xx e s o t - 89 l x 2 5 3 v o ut 3 2 2 ? e n - 1 - ? g nd 1 4 1 nc - 3 - (s o t - 8 9) 1 2 3 g nd v o u t lx lx g nd nc v o ut en ( s o t- 2 3 - 5) (s o t - 2 3 - 3) 1 3 2 gnd v o ut lx 1 2 3 4 5 www.datasheet.co.kr datasheet pdf - http://www..net/
l t 85 84 w w w . ic108.com,cn 3 o f 1 1 ?? ? ? ? v m a x v o ut v lx ? ? 8 v i l x m a x lx 1 00 0 m a ?? p s o t - 89 s o t - 89 ? 0 . 5 w ? t m i n - m ax - 2 0 - 8 5 o c t s t o r a g e - 4 0 - 1 6 5 o c e s d v e s d ? ? 2 00 0 v ? ? ? ? vo ut -2. 5 2 . 5 % ? v in m ax 0 . 9 5 . 0 v ? v s t a rt i l o a d = 1 ma, v i n:0 2v 0 . 8 v ?? v h o ld i l o a d = 1 ma, v i n:2 0v 0 . 6 v ?? dc o sc 8 5 % 90 9 4 % i limit 60 0 8 0 0 100 0 ma ? ? i i n 0 v i n = 1 . 8 v vo ut = 3. 0v 15 u a www.datasheet.co.kr datasheet pdf - http://www..net/
l t 85 84 w w w . ic108.com.cn 4 o f 1 1 ( c i n = co = 1 0 0 u f , l = 4 7 uh) o u t p u t c u r r e n t v s . s ta r t u p v o l t a ge 0 0 .2 0 .4 0 .6 0 .8 1 1 .2 1 .4 1 10 1 00 o u t p u t c u r r e n t ( m a) s t ar t up vol t ag e ( v) outp u t current vs. output v oltage 3.20 3.22 3.24 3.26 3.28 3.30 3.32 3.34 3.36 3.38 3.40 1 10 100 1000 outp u t current (ma) o utput volta g e (v) 1 v 1 . 5 v 2 v 2 . 5 v 3 v v i n = www.datasheet.co.kr datasheet pdf - http://www..net/
l t 85 84 w w w . ic108.com.cn 5 o f 1 1 o ut p u t c u rr e nt vs . e ff i ci e ncy 8 0 .0 8 2 .0 8 4 .0 8 6 .0 8 8 .0 9 0 .0 9 2 .0 9 4 .0 9 6 .0 1 10 1 00 1 000 o ut p u t c u rr e nt (m a) ef f ici e ncy (%) v i n = 1 v 1 . 5 v 2 v 2 . 5 v 3 v v i n = 1 v www.datasheet.co.kr datasheet pdf - http://www..net/
l t 85 84 w w w . ic108.com.cn 6 o f 1 1 o ut p u t c u rr e nt v s . r ip p le 0 .0 1 0 .0 2 0 .0 3 0 .0 4 0 .0 5 0 .0 6 0 .0 1 10 1 00 1 000 o u tp u t c ur r en t ( ma) ri p pl e ( m v) 1 . 5 v 2 v 2 . 5 v 3 v www.datasheet.co.kr datasheet pdf - http://www..net/
l t 85 84 w w w . ic108.com.cn 7 o f 1 1 ????? mi n ma x mi n m ax a 1 . 05 0 1.2 5 0 0.04 1 0.049 a 1 0.00 0 0 . 1 0 0 0 .00 0 0.004 a 2 1.05 0 1 . 1 5 0 0 .04 1 0.045 b 0.30 0 0.40 0 0 .01 2 0.016 c 0.10 0 0 . 20 0 0.00 4 0.008 d 2.82 0 3.02 0 0.11 1 0. 1 19 e 1 . 50 0 1.7 0 0 0.05 9 0.067 e 1 2.65 0 2 . 9 5 0 0 .10 4 0.116 e e 1 1.80 0 2 . 0 0 0 0.07 1 0.079 l l 1 0.30 0 0 . 6 0 0 0.01 2 0.024 ? 0 8 0 8 0.700r e f 0.028ref s y mbol di m ensions in m ill i meter s dim e n s i on s in inch es 0.950t y p 0.037t yp www.datasheet.co.kr datasheet pdf - http://www..net/
l t 85 84 w w w . ic108.com.cn 8 o f 1 1 m i n m a x mi n m ax a 1 .0 5 0 1 . 2 5 0 0. 04 1 0 . 0 49 a 1 0. 0 0 0 0 . 10 0 0 . 00 0 0 . 0 04 a 2 1. 0 5 0 1 . 15 0 0 . 04 1 0 . 0 45 b 0 .3 0 0 0. 4 0 0 0. 01 2 0 . 0 16 c 0 . 10 0 0 .2 0 0 0 .0 0 4 0 . 0 08 d 2 . 8 2 0 3. 0 2 0 0. 1 1 1 0 . 119 e 1 .5 0 0 1 . 7 0 0 0. 05 9 0 . 0 67 e 1 2. 6 5 0 2 . 95 0 0 . 10 4 0 . 1 16 e e 1 1 . 80 0 2 . 00 0 0 . 07 1 0 .0 79 l l 1 0 . 30 0 0 . 60 0 0 . 01 2 0 .0 24 ? 0 8 0 8 0 . 70 0 re f 0 . 02 8 r ef s ymb ol d im e ns i on s in mi l li me t er 0 .9 5 0 ty p 0 .0 37 typ d i m e n s io n s i n i nc hes www.datasheet.co.kr datasheet pdf - http://www..net/
l t 85 84 w w w . ic108.com.cn 9 of 11 mi n m a x m i n m ax a 1 . 4 0 0 1 . 6 0 0 0 . 05 5 0 . 0 63 b 0 . 3 2 0 0 . 52 0 0 . 0 1 3 0 . 1 97 b 1 0 . 4 0 0 0 . 5 8 0 0 . 0 1 6 0 . 0 23 c 0.35 0 0 . 4 4 0 0 . 0 1 4 0 . 0 17 d 4 . 40 0 4 . 60 0 0 . 1 7 3 0 . 181 d1 e 2 . 3 0 0 2 . 6 0 0 0 . 09 1 0 . 1 02 e 1 3 . 9 4 0 4 . 25 0 0 . 15 5 0 . 1 67 e e1 l 0 . 9 0 0 1 . 20 0 0 . 0 3 5 0.047 s y m bol i n mil l i me t er s d im e n s i o n s i n i n c h es d i m e ns i o n s 1 . 550 r e f 0 . 0 61 r ef 1 . 5 0 0 t y p 0 . 0 60 t yp 3 . 0 0 0 t y p 0 . 1 18 t yp www.datasheet.co.kr datasheet pdf - http://www..net/


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