ts 4264 g 5v/150ma fixed-voltage ultra low ldo 1/5 version: a08 sot - 223 general description the TS4264GCW50 is a monolithic integrated low - drop fixed voltage regulator which can supply loads up to 150ma. it is functional compatible to the TS4264GCW50 but has a reduced quiescent current o f typ. 40 a. the TS4264GCW50 is especially designed for all applicat ions which are require very low quiescent currents. this uldo is designed to supply microprocessor systems under the severe condition of automotive applications and is therefore equipped w ith additional protection against overload, short - circuit and over temperature. of course the TS4264GCW50 can be used in all other applications, wherever a stabilized voltage is required. an input voltage in the range of 5.5v ~ 45v is regulated to v out = 5 v with an accuracy of 3%. an accuracy of 2% is kept for a load current range up to 50ma. the devic e operates in the temperature range of t j = C 40 ~150c. ordering information part no. package packing ts 4264 g cw50 rp sot - 223 2.5kpcs / 13 reel features fixed output voltage 5v output voltage tolerance 3% 150ma current capability ultra low q uiescent current 40ua (typ.) over temperature protection short - circuit proof reverse polarity proof wide temperature polarity range suitable for use in automotive electronics pin definition and function pin symbol function 1 input b lock to ground directly on ic with ceramic capacitor 2 ground ground 3 output b lock to ground with 10 u f capacitor, e sr < 4 block diagram pin definition : 1. input 2. ground (tab) 3. output downloaded from: http:///
ts 4264 g 5v/150ma fixed-voltage ultra low ldo 2/5 version: a08 absolute maximum rating limit values parameter symbol min. max. unit notes i nput voltage v in - 42 45 v input voltage (operating range) v in (opr) 5.5 45 v input current i in -- -- -- internally limited output voltage v out - 0.3 32 v output current i out -- -- -- internally limited ground current i gnd 50 -- ma junction temperature t j -- 150 oc junction temperature (operating range) t j (opr) - 40 150 oc storage temperature t stg - 50 150 oc thermal performance limit values p arameter symbol min. max. unit notes thermal resistance junction - ambient r ja -- 80 o c/w thermal resistance junction - pin r jp -- 17 o c/w note: measured to pin 2 (tab) electrical characteristics v in =13.5v, - 40 t j +150 , unless otherwise specified. limit values parameter symbol min. typ. max. unit notes output voltage v out 4.85 5.0 5.15 v 6v v in 21v, 5ma io 100ma output voltage v out 4.90 5.0 5.10 v 6v v in 16v, 5ma io 50ma output current limit i out 150 200 500 ma -- 40 60 io= 1 00 ua , t j 85oc -- 40 70 ua io= 1 00 ua current consumption i q -- 1.7 4 ma io= 50ma dropout voltage (note) v drop -- 0.22 0.5 v io= 10 0ma load regulation reg load -- 50 90 m v 5 ma io 1 00ma , v in = 13.5v line regulation reg line -- 5 30 m v 6v v in 28 v , io=1ma ripple rejection psrr -- 68 -- db f = 100 hz, v r = 0.5v p p output capacitor c out 10 -- -- uf esr 4 @ 10khz note: drop out voltage = v in C v out (measured where v out has dropped 100mv from the nominal value obtained at v in = 13.5v) downloaded from: http:///
ts 4264 g 5v/150ma fixed-voltage ultra low ldo 3/5 version: a08 application information in the TS4264GCW50 the output voltage is divided an d compared to an internal reference of 2.5v typical . the regulation loop controls the output to achieve an o utput voltage of 5v with an accuracy of 3% at an input voltage range of 5.5v~45v. circuit description the control amplifier compares a reference voltage, which is kept highly precise by resistance adjustm ent, to a voltage that is proportional to the output voltage and driv es the base of the series transistor via a buffer. saturation control, working as a function of load current, prevents any over-saturation of the power element. the ic is ad ditionally protected against overload, over temperature and re verse polarity typical application circuit dimensioning information on external components the input capacitor c in i s necessary for compensating line influences. using a resistor of approx. 1 in series with c in , the oscillating of input inductivity and input capa citance can be clamped. the output capacitor c out is necessary for the stability of the regulating circuit. stability is g uaranteed at values c out 10u f and an esr 4 within the operating temperature range. the application circuit shows additional electrolyt ic input capacitor of 470uf is added in order to bu ffer supply line influences. this capacitor is recommended, if the d evice is sourced via long supply lines of several m eters. th e TS4264GCW50 can supply up to 150ma. however for p rotection for high input voltage above 25v, the out put current is reduced (soa protection). downloaded from: http:///
ts 4264 g 5v/150ma fixed-voltage ultra low ldo 4/5 version: a08 sot - 223 mechanical drawing marking diagram y = year code m = month code ( a =jan, b =feb, c =mar, d =apl, e =may, f =jun, g =jul, h =aug, i =sep, j =oct, k =nov, l =dec) l = lot code 50 = 5v fixed output voltage sot - 2 23 dim ension millimeters inches dim min max min max a 6.350 6.850 0.250 0.270 b 2.900 3.100 0.114 0.122 c 3.450 3.750 0.136 0.148 d 0.595 0.635 0.023 0.025 e 4.550 4.650 0.179 0.183 f 2.250 2.350 0.088 0.093 g 0.835 1.035 0.032 0.041 h 6.700 7.3 00 0.263 0.287 i 0.250 0.355 0.010 0.014 j 10 16 10 16 k 1.550 1.800 0.061 0.071 downloaded from: http:///
ts 4264 g 5v/150ma fixed-voltage ultra low ldo 5/5 version: a08 notice specifications of the products displayed herein are subject to change without notice. tsc or anyone on its behalf, assumes no responsibility or liability for any erro rs or inaccuracies. information contained herein is intended to provide a product description only. no license, express or implied, to any intellectual property rights is granted by this doc ument. except as provided in tscs terms and condit ions of sale for such products, tsc assumes no liability whatsoever, and disclaims any express or implied warranty, rel ating to sale and/or use of tsc products including liability or w arranties relating to fitness for a particular purp ose, merchantability, or infringement of any patent, copyright, or other intellectual property right. the products shown herein are not designed for use in medical, life-saving, or life-sustaining applica tions. customers using or selling these products for use in such app lications do so at their own risk and agree to full y indemnify tsc for any damages resulting from such improper use or sal e. downloaded from: http:///
|
