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________________________________________________________________________ http://www.union - ic.com rev.0 1 apr .20 14 1 / 1 1 um373 0 15 0 ma, micropower , low d ropout linear regulator u m373 0 d a - xx dfn 4 1.01.0 um37 3 0 p - xx s ot353 general description the um3730 series are low dropout linear regulator s designed for low power portable applications. typical output noise is only 2 2 0 v rms and typical dropout voltage is 155 mv at the load current of 15 0ma. ideal for battery powered applications, the um3730 draw s only 29a current during no load operation. the um3730 includes an auto - discharge feature that is activated when the enable pin is lo w. other features include 2% output voltage accuracy, excellent transient response, stab i lity with ultra low esr ceramic capacitors as small as 1 f, thermal overload protection and output current limiting. the um3730 series are av ailable in low profile dfn 4 1 . 0 1 .0 and s ot353 package s . applications features ? digital camera ? pdas and notebook computers ? portable instruments and battery - powered systems ? cellular phones ? input v oltage r ange : 2.5v to 5.5 v ? guaranteed 150ma output current ? 2 % voltage a ccuracy at 150ma ? low d ropout voltage : 155mv (t ypical) at 150ma ? low quiescent current: 29 a(t ypical) ? low n oise: 2 2 0v rms (10hz to 100khz) ? available fixed output v oltage from 1. 0 v to 3.3 v with 0.1v step ? output current l imit ? thermal overload p rotection ? stable with 1 f output c apacitor ? low p rofile dfn4 1.01.0 and sot353 p ackage s t ypical appli cation circuit v i n v o u t g n d e n u m 3 7 3 0 v i n v o u t c h i p e n a b l e 1 u f 1 u f
________________________________________________________________________ http://www.union - ic.com rev.0 1 apr .20 14 2 / 1 1 um373 0 pin configur ations top view pin description m: month code um3730 da - xx dfn4 1.01.0 m: month code um3730 p - xx sot353 pin number pin name dfn 4 1.01.0 pin name sot353 pin function 1 vout - output voltage 1 - in supply input 2 gnd gnd ground 3 en en enable input: active high. high=on, low=off 4 vin - supply input 4 - nc no connect. 5 - out output voltage ep hs pad - exposed heat sink pad 1 2 3 4 v i n v o u t g n d e n e p x x m 1 2 3 4 5 i n g n d e n n c o u t 1 2 3 4 5 x x x m
________________________________________________________________________ http://www.union - ic.com rev.0 1 apr .20 14 3 / 1 1 um373 0 nam ing information available voltage version part number output voltage packaging type marking code s hipping qty um 3730da - 10 1.0 v dfn4 1.01. 0 ja 3000 pcs/ 7 i nch tape & reel um 3730 da - 11 1.1 v jb um 3730 da - 12 1.2 v j2 um 3730 da - 13 1.3 v j3 um 3730 da - 14 1.4 v j4 um 3730 da - 15 1.5 v j5 um 3730 da - 16 1.6 v j6 um 3730 da - 17 1.7 v j7 um 3730 da - 18 1.8 v j8 um 3730 da - 19 1.9 v j9 um 3730 da - 20 2.0 v jc um 3730 da - 21 2.1 v kb um 3730 da - 22 2.2 v k2 um 3730 da - 23 2.3 v k3 um 3730 da - 24 2.4 v k4 um 3730 da - 25 2.5 v k5 um 3730 da - 26 2.6 v k6 um 3730 da - 27 2.7 v k7 um 3730 da - 28 2.8 v k8 um 3730 da - 29 2.9v k9 um 3730 da - 30 3.0v kc um 3730 da - 31 3.1v nb um 3730 da - 32 3.2v n2 um 3730 da - 33 3.3v n3 u m 3 7 3 0 p a c k a g e t y p e d a : d f n 4 1 . 0 1 . 0 p : s o t 3 5 3 o u t p u t v o l t a g e 1 0 : 1 . 0 v 1 1 : 1 . 1 v 1 2 : 1 . 2 v 3 3 : 3 . 3 v
________________________________________________________________________ http://www.union - ic.com rev.0 1 apr .20 14 4 / 1 1 um373 0 available voltage version (continued) part number output voltage packaging type marking code s hipping qty um 3730p - 10 1.0 v sot353 uja 3000 pcs/ 7 i nch tape & reel um 3730p - 11 1.1 v ujb um 3730p - 12 1.2 v u j2 um 3730p - 13 1.3 v uj3 um 3730p - 14 1.4 v uj4 um 3730p - 15 1.5 v uj5 um 3730p - 16 1.6 v uj6 um 3730p - 17 1.7 v uj7 um 3730p - 18 1.8 v uj8 um 3730p - 19 1.9 v uj9 um 3730p - 20 2.0 v ujc um 3730p - 21 2.1 v ukb um 3730p - 22 2.2 v uk2 um 3730p - 23 2.3 v uk3 um 3730p - 24 2.4 v uk4 um 3730p - 25 2.5 v uk5 um 3730p - 26 2.6 v uk6 um 3730p - 27 2.7 v uk7 um 3730p - 28 2.8 v uk8 um 3730p - 29 2.9v uk9 um 3730p - 30 3.0v ukc um 3730p - 31 3.1v unb um 3730p - 32 3.2v un2 um 3730p - 33 3.3v un3 absolute maximum rating s (note 1) s ymbol p arameter v alue u nit v in supply voltage on v in pin - 0.3 to + 7.5 v v out voltage on v out pin - 0.3 to +7.5 v t j operating junction temperature (notes 2, 3) - 40 to + 125 c t stg storage temperature range - 5 5 to + 150 c t l lead temperatur e for soldering 10 s econds + 260 c ja ( notes 4 ) package thermal resistance dfn4 1.0 1.0 250 c /w sot353 256 note 1: absolute maximum ratings are tho se values beyond which the life of a device may be impaired. not e 2: the um3730 is tested and specified under pul se load conditions such that t j t a . specifications over the C 40 to 125 operating junction temperature range are assured by design, characterization and correlation with statistical process controls. no te 3 : this ic includes over temperature protection that is intended to prot ect the device during momentary o verload conditions. note 4: the maximum allowable power dissipation of any t a (ambient temperature) is p dmax = (t jmax - t a )/ ja . exceeding the maximum allowable power dissipation will result in excessive die temperature an d the regulator will go into thermal shutdown.
________________________________________________________________________ http://www.union - ic.com rev.0 1 apr .20 14 5 / 1 1 um373 0 electrical characteristics v in = v en =v out + 1v , c in =c out =1 f, t a = 2 5 . symbol parameter test conditions min typ max unit v in input voltage range 2.5 5.5 v v out output voltage range 1. 0 3.3 v i q operating quiescent current i out =0ma 29 39 a en enable input current v en =v in or gnd 1 a out output current 150 ma output voltage accuracy i out =150ma - 2.0 +2.0 % v do dropout voltage i out =50ma,v out 2.8v out =150ma,v out 2.8v out =50ma,v out <2.8v 60 135 mv i out =150ma, v out <2.8v 180 380 mv i limt output current limit v out =0v 200 325 500 ma t startup time response i out =150ma, c out =1f s il enable input low voltage v in =2.5v to5.5v 0.4 v v ih enable input high voltage v in =2.5v to5.5v 1.2 v output voltage tc 100 ppm/ shdn thermal - shutdown temperature 160 t shdn thermal - shutdown hysteresis 20 out +1vv in 5.5v in out =10ma 0.1 0.3 %/v ldr load regulation v in =v ou t +1v (v in 1maiout150ma out =1.8v, 10hz to 100khz c in =1f, i out =100ma 220 v rms psrr power supply ripple rejection v in =v out +1v (v in out =100ma f=1khz 45 db f=10khz 30 auto - discharge resistance v i n =3.6v, v en =0v 10 ?
________________________________________________________________________ http://www.union - ic.com rev.0 1 apr .20 14 6 / 1 1 um373 0 typical performance characteristics quiescent current vs input voltage iout=0ma quiescent current vs temperature vin=2.8v, iout=0ma ground current vs output current vin=2. 8v output voltage vs input voltage iout=150ma output voltage vs output current vin=2.8v output voltage vs temperature vin=2.8v, iout=1ma
________________________________________________________________________ http://www.union - ic.com rev.0 1 apr .20 14 7 / 1 1 um373 0 typical performance characteristics (continued) noise vout=1.8v, vin=2.8v, io=100ma, cin=cout=1f 220 vrms noise( 5 00v/div) time, 50ms/div f=10hz to 100khz load transient response iout=10 to 150ma (50ma/div) vout (50mv/div) vout=1.8v vin =2.8v, 50s/div line transient response vin =2.8 to 3.8v(1v/div) vout (100mv/div) vout=1.8v iout=150ma, 20s/div dropout voltage vs output current vout=1.8v enable logic threshold vs supply voltage psrr vs frequency
________________________________________________________________________ http://www.union - ic.com rev.0 1 apr .20 14 8 / 1 1 um373 0 typical performance characteristics (continued) enable turn - on en ( 1 v/div) vout ( 1 v/div) vout= 1.8 v vin = 2.8 v, rl=68ohm 20s/div auto discharge (no load) en (2v/div) vout ( 1v /div) vout= 1 .8 v, vin= 3.6v 2 0s/div
________________________________________________________________________ http://www.union - ic.com rev.0 1 apr .20 14 9 / 1 1 um373 0 package infor mation um3730da - xx dfn4 1.01.0 outline drawing dimensions symbol millimeters min typ max a - 0.39 0.40 a1 0 0.02 0.05 a 3 - 0.13 - b 0.20 0.25 0.30 d 0.95 1.00 1.05 e 0.95 1.00 1.05 d2 0.38 0.48 0.58 e 2 0.38 0.48 0.58 e 0.65bsc l 0.20 0.25 0.30 l1 0.27 0.32 0.37 l2 0.02 0.07 0.12 z - 0.05 - land pattern notes: 1. compound dimension: 1.00 1.00 ; 2. unit: mm; 3. general tolerance 0.0 5 mm unless otherwise specified ; 4. the layout is just for reference. tape and reel orientation d e l 1 l b e l 2 a a 1 a 3 b o t t o m v i e w s i d e v i e w z d 2 e 2 0 . 4 0 0 . 2 5 0 . 2 2 0 . 4 7 1 . 3 0 0 . 6 5 0 . 4 8 0 . 4 8 m x x
________________________________________________________________________ http://www.union - ic.com rev.0 1 apr .20 14 10 / 1 1 um373 0 um3730p - xx sot353 outline drawing dimensions symbol millimeters inches min max min max a 0.900 1.100 0.035 0.043 a1 0.000 0.100 0.000 0.004 a2 0.877 1.000 0.035 0.039 b 0.150 0.350 0.006 0.014 c 0.080 0.220 0.003 0.009 d 1.800 2.200 0.071 0.087 e 1.150 1.350 0.045 0.053 e1 2.000 2.450 0.079 0.096 e 0.650ref 0.026ref e1 1.200 1.40 0 0.047 0.055 l 0.488ref 0.020ref l1 0.260 0.460 0.010 0.018 0 8 0 8 land pattern notes: 1. compound dimension: 2. 00 1 . 25 ; 2. unit: mm; 3. general tolerance 0.0 5 mm unless otherwise specified; 4 . the layout is just for reference. tape and reel orientation e e 1 d e 1 b t o p v i e w e n d v i e w s i d e v i e w 1 . 3 0 0 . 8 0 1 . 9 4 0 . 3 5 m x x x
________________________________________________________________________ http://www.union - ic.com rev.0 1 apr .20 14 11 / 1 1 um373 0 important notice the information in this document has been carefully reviewed and is believed to be accurate. nonetheless, this document is subject to change w ithout notice. union assumes no responsibility for any inaccuracies that may be contained in this document, and makes no commitment to update or to keep current the contained information, or to notify a person or organization of any update. union reserves the right to make changes, at any time, in order to improve reliability, function or design and to attempt to supply the best product possible. union semiconductor, inc add : 2 f, no. 3 , lane 647 songtao road, shanghai 201203 tel: 021 - 5109 3966 fax: 021 - 51026018 website: www.union - ic.com

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