LM317T 02/10/2012 comset semiconductors 1/2 3-terminal positive adjustable regulators general description the LM317T are monolithic integrated circuits in to220 packages. they are intended for use as positive adjustable voltage regulators, and designed to supply more than 1.5a of load current whit an output voltage adjustable over a 1.2 to 37v range. compliance to rohs. absolute maximum ratings symbol ratings value unit v i -v o input-output voltage differential 40 v i o output current 1.5 a p d power dissipation internally limited w t op operating junction temperature 0 to 125 c t stg storage temperature -65 to 150 c thermal data symbol ratings value unit r thjc from junction to case thermal resistance 1.67 c/w r thja from junction to free-air thermal resistance 62.5 characteristics v i -v o = 5 v, i o = 500 ma, i max = 1.5 a, p max = 20 w, unless otherwise specified symbol ratings test condition(s) min typ max unit v ref reference voltage v i -v o = 5 v i o = 40 to 500 ma 1.2 1.25 1.3 v ? v o line regulation v i -v o = 3 to 40 v i o = 500 ma - - 0.05 %/v ? v o load regulation v i -v o = 5 v i o = 10ma to 1.5 a - - 1 % i adj adjustment pin current v i -v o = 5 v i o = 40 to 500 ma - - 100 a ? i adj adjustment pin current v i -v o = 3 to 40 v i o = 40 to 500 ma - - 5 a ? i adj adjustment pin current v i -v o = 5 v i o = 10ma to 1.5 a - - 5 a s vr ripple rejection v i -v o = 5 v; i o = 500 m a v o = 10 v; f= 100 hz c adj = 10 f 66 - - db
LM317T 02/10/2012 comset semiconductors 2/2 mechanical data case to-220 dimensions (mm) min. max. a 9,90 10,30 b 15,65 15,90 c 13,20 13,40 d 6,45 6,65 e 4,30 4,50 f 2,70 3,15 g 2,60 3,00 h 15,75 17.15 l 1,15 1,40 m 3,50 3,70 n - 1,37 p 0,46 0,55 r 2,50 2,70 s 4,98 5,08 t 2.49 2.54 u 0,70 0,90 revised september 2012 ????????? ? information furnished is believed to be accurate and reliable. howe ver, comset semicond uctors assumes no responsibility for the consequences of use of such information nor for any in fringement of patents or other rights of th ird parties which may results from its use. data are subject to change without notice. comset semiconductors makes no warranty, representati on or guarantee regarding the suitability of its pr oducts for any particular purpose, nor does comset semicondu ctors assume any liability arising out of the application or use of any product an d specifically disclaims any and all liability, including without limitation co nsequential or incidental damages. comset semiconductors? produ cts are not authorized for use as critical compone nts in life support devices or systems. ? ? www.comsetsemi.com info@comsetsemi.com pin 1 : adjust. pin 2 : output pin 3 : input
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