View UM37512S_8745589.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

________________________________________________________________________ http://www.union - ic.com rev.0 6 dec .20 1 4 1 / 1 2 u m375xx 300 ma, micropower , vldo linear regulator u m375 xx s sot23 - 5 u m375 xx p sot353 general description the um375 xx series are vldo (very low dropout) linear regulator s designed for low power portable applications. typical output noise is only 170 v rms (um37512) and maximum dropout is just 20 0 mv at the load current of 1 0 0ma. the internal p - channel mosfet pass transistor requires no base current, allowing the device to draw only 9 0 a during normal operation at the maximum load current of 300ma. other features include high output voltage accuracy, under voltage lockout, stab i lity with ultra low esr ceramic capacitors as small as 1 f, thermal overload protection and output current limiting. the um375 xx series are av ailable in a low profile sot23 - 5 and s o t353 package. applications features ? bluetooth/802.11 cards ? pdas and notebook computers ? portable instruments and battery - powered systems ? cellular phones ? input voltage range: 2.0v to 6.0v ? very low dropout: 2 00 mv ( m ax) at 1 0 0ma ? low noise: 1 7 0 v rms (um3751 2 10hz to 100khz) ? 2 % voltage accuracy at 150ma ? fixed output voltage: 1.2v to 5.0v with 100mv i nterval ? output current limit ? stable with 1 f output capacitor ? thermal overload protection ? low profile sot23 - 5 and sot353 package pin configurations top view m: month code um375 xx s sot23 - 5 5 x x
________________________________________________________________________ http://www.union - ic.com rev.0 6 dec .20 1 4 2 / 1 2 u m375xx pin description m: month code um375xxp sot353 pin number symbol function 1 in power supply 2 gnd ground 3 shdn ____________ shutdown input, active low 4 nc not connected 5 out voltage regulated output v x x
________________________________________________________________________ http://www.union - ic.com rev.0 6 dec .20 1 4 3 / 1 2 u m375xx o rdering information part number output voltage packaging type marking code s hipping qty UM37512S 1.2v sot23 - 5 5ed 30 00 pcs/ 7 i nch tape & reel um37513s 1.3v 5ee um37514s 1.4v 5eh um37515s 1.5v 5ej um37516s 1.6v 5el um37517s 1.7v 5em um37518s 1.8v 5ek um37519s 1.9v 5ef um37520s 2.0v 5ec um37521s 2.1v 5es um37522s 2.2v 5et um37523s 2.3v 5ey um37524s 2.4v 5eu um37525s 2.5v 5en um37526s 2.6v 5ez um37527s 2.7v 5ep um37528s 2.8v 5eq um37529s 2.9v 5eb um37530s 3.0v 5er um37531s 3.1v 5ea um37532s 3.2v 5dd um37533s 3.3v 5de um37534s 3.4v 5db um37535s 3.5v 5df um37 536s 3.6v 5dh um37537s 3.7v 5da um37538s 3.8v 5dl um37539s 3.9v 5dt um37540s 4.0v 5dm um37541s 4.1v 5dy um37542s 4.2v 5dj um37543s 4.3v 5dn um37544s 4.4v 5dv um37545s 4.5v 5dp um37546s 4.6v 5dz um37547s 4.7v 5dq um37548s 4.8v 5dr um37549s 4.9v 5d9 um37550s 5.0v 5ds
________________________________________________________________________ http://www.union - ic.com rev.0 6 dec .20 1 4 4 / 1 2 u m375xx o rdering information (continued) part number output voltage packaging type marking code s hipping qty um37512p 1.2v sot353 vl2 3000 pcs/ 7 i nch tape & reel um37513p 1.3v vl3 um37514p 1.4v vl4 um 37515p 1.5v vl5 um37516p 1.6v vl6 um37517p 1.7v vl7 um37518p 1.8v vl8 um37519p 1.9v vl9 um37520p 2.0v vla um37521p 2.1v vm1 um37522p 2.2v vm2 um37523p 2.3v vm3 um37524p 2.4v vm4 um37525p 2.5v vm5 um37526p 2.6v vm6 um3752 7p 2.7v vm7 um37528p 2.8v vm8 um37529p 2.9v vm9 um37530p 3.0v vma um37531p 3.1v vj1 um37532p 3.2v vj2 um37533p 3.3v vj3 um37534p 3.4v vj4 um37535p 3.5v vj5 um37536p 3.6v vj6 um37537p 3.7v vj7 um37538p 3.8v vj8 um37539p 3 .9v vj9 um37540p 4.0v vja um37541p 4.1v vt1 um37542p 4.2v vt2 um37543p 4.3v vt3 um37544p 4.4v vt4 um37545p 4.5v vt5 um37546p 4.6v vt6 um37547p 4.7v vt7 um37548p 4.8v vt8 um37549p 4.9v vt9 um37550p 5.0v vta
________________________________________________________________________ http://www.union - ic.com rev.0 6 dec .20 1 4 5 / 1 2 u m375xx absolute max imum ratings (note 1) s ymbol p arameter v alue u nit v in supply voltage on in pin - 0.3 to + 7.5 v v out voltage on 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 - 6 5 to + 150 c t l lead t emperature for soldering 10 s econds + 300 c note 1: absolute maximum ratings are tho se values beyond which the life of a device may be impaired. not e 2: the um375 xx is tested and specified under pul se load conditions such that t j t a . the device is guarant eed to meet pe rformance specifications from 0 to 70 . 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 overtemper ature protection that is intended to prot ect the device during momentary o verload conditions. junct ion temperature will exceed 125 when overtemperature protection is active. continuous operation above the specified maximum operating junction temperature m ay impair device reliability.
________________________________________________________________________ http://www.union - ic.com rev.0 6 dec .20 1 4 6 / 1 2 u m375xx electrical characteristics v cc =v out +1v(v out 1.5v) or v cc =2.5v(v out 1.5v ) ,t a = - 40 to +85 . symbol parameter test conditions min typ max unit v in input voltage range 2.0 6 v v out output voltage range 1.2 5.0 v i q oper ating quiescent current i out =0ma 5 0 120 a out =300ma 90 130 i shdn __________ shdn _____________ input current shdn _____________ =v in or gnd 1 a out output current 300 ma output voltage accuracy 1ma out a = - 40 v do dropout voltage i out = 1 00ma 150 200 mv i limt output cur rent limit 330 450 700 ma t startup time response r l =68, c out =1f s il shdn _____________ input low voltage 0.4 v v ih shdn _____________ input high voltage 0.6vcc v output voltage tc 100 ppm/ shdn thermal - shutdown temperature 160 t shdn thermal - shutdown hysteresis 35 out out +0.3v in in >2.5v i out =10ma 0.5 %/ v line regulation (v out out in =v out +1v or v in >2.5v 1ma out out in =1f, out =10ma um37512 170 v rms um37533 250 u m37550 295 psrr power supply ripple rejection (v out in =v out +1v or v in >2.5v i out =100ma f =100hz 40 db f =10 k hz 30 power supply ripple rejection (v out
________________________________________________________________________ http://www.union - ic.com rev.0 6 dec .20 1 4 7 / 1 2 u m375xx typical p erformance characteristics um37533 iload=10ma um37533, vin=4.3v um37533 um375 18 , i out =0ma um375 18 iout=100ma um375 18 vin=2v quiescent current vs input voltage o utput voltage vs input voltage o utput voltage vs output current o utput voltage vs i nput voltage o utput voltage vs output current dr op out voltage vs output current outpout voltage vs output current 3.25 3.26 3.27 3.28 3.29 3.30 3.31 3.32 3.33 3.34 0 50 100 150 200 250 300 output current(ma) output voltage(v) output voltage vs input voltage 3.280 3.285 3.290 3.295 3.300 3.305 3.310 3.315 3.320 3.5 4 4.5 5 5.5 6 input voltage(v) output voltage(v) dropout voltage vs output current 0 50 100 150 200 250 300 350 0 25 50 75 100 125 150 175 200 225 250 275 300 output current(ma) dropout voltage(mv)
________________________________________________________________________ http://www.union - ic.com rev.0 6 dec .20 1 4 8 / 1 2 u m375xx typical performance characteristics ( c ontinued) line transient response load transient response um37533, vin=4.3v i out =10ma t o 150ma v out =3.3v(100mv/div ) vin=4.3v, 100us/div vin=4.0v to 5.0v v out =3.3v (50mv/div ) iload=150ma, 50us/div o utput voltage vs t emperature p srr vs frequency outpout voltage vs temperature 3.270 3.280 3.290 3.300 3.310 3.320 3.330 -40 -20 0 25 35 45 55 65 75 85 95 105 115 125 temperature( outpout voltage(v) 10 100 1000 10000 100000 0 20 40 60 80 100 psrr vs frequency psrr(db) frequency(hz) um37533, iload=100ma
________________________________________________________________________ http://www.union - ic.com rev.0 6 dec .20 1 4 9 / 1 2 u m375xx pin function in (pin 1): power for um3 75 xx and load power is supplied to the devices through the in pin. the in pin should be locally bypassed to ground if the um3 75xx series are more than a few in ches away from another source of bulk capacitance. in general, the output impedance of a battery rises with frequency, so it is usually advisable to include an input bypass capacitor in battery - powere d circuits. a capacitor in the range of 0.1f to 1f is usually sufficient. gnd (pin 2) : ground and heat sink. solder to a ground plane or large pad to maximize heat dissipation. shdn _____________ (pin 3): shutdown, active low. this pin is used to put the um3 75 xx into shutdown. the shdn _____________ pin cannot be left floating and must be tied to the input pin if not used. n c (pin 4): not connected. out (pin 5): voltage regulated output. the out pin supplies power to the load. a minimum output capacitor of 1f is required to ensure stability. larger output capacitors may be required for applications with large transient loa ds to limit peak voltage transients. t ypical application circuit u m 3 7 5 x x v i n v o u t g n d i n o u t s h d n 1 f 1 f
________________________________________________________________________ http://www.union - ic.com rev.0 6 dec .20 1 4 10 / 1 2 u m375xx package information um375 xx s: sot23 - 5 outline drawing dimensions symbol millimeters inches min max min max a 1.050 1.25 0 0.041 0.049 a1 0.000 0.100 0.000 0.004 a2 1.050 1.150 0.041 0.045 b 0.300 0.500 0.012 0.020 c 0.100 0.200 0.004 0.008 d 2.820 3.020 0.111 0.119 e 1.500 1.700 0.059 0.067 e1 2.650 2.950 0.104 0.116 e 0.950ref 0.037ref e1 1.800 2.000 0.071 0.079 l 0.300 0.600 0.012 0.024 0 8 0 8 land pattern notes: 1. compound dimension: 2.92 1 .60 ; 2. unit: mm; 3. general tolerance 0.0 5 mm unless otherwise specified; 4. the layout is just for reference. tape an d reel orientation 1 2 3 4 5 b d e 1 e e 1 e t o p v i e w 0 . 6 0 0 . 9 0 2 . 4 0 0 . 9 5 0 . 9 5 m 5 x x
________________________________________________________________________ http://www.union - ic.com rev.0 6 dec .20 1 4 11 / 1 2 u m375xx um375 xx p : 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 1.400 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 r eel 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 v x x
________________________________________________________________________ http://www.union - ic.com rev.0 6 dec .20 1 4 12 / 1 2 u m375xx important notice the information in this document has been carefully reviewed and is believed to be accurate. nonetheless, this document is subject to change without 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 orde r to improve reliability, function or design and to attempt to supply the best product possible. union semiconductor, inc add : unit 606, no.570 shengxia r oa d, shanghai 2012 10 tel: 021 - 5109 3966 fax: 021 - 51026018 website: www.union - ic.com

▲Up To Search▲

Price & Availability of UM37512S

	To Download UM37512S Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .