vivek_pv Posted August 19, 2006 Report Share Posted August 19, 2006 Dears,I want to make a regulated power supply (9-25V @ 5A)Please let me know which IC should be used for this.(Like we how we use LM317 IC) Quote Link to comment Share on other sites More sharing options...
audioguru Posted August 19, 2006 Report Share Posted August 19, 2006 National Semiconductor invented the LM317 adjustable regulator. In their datasheet for it they show how to increase its output current a few different ways. Quote Link to comment Share on other sites More sharing options...
ante Posted August 19, 2006 Report Share Posted August 19, 2006 You could also try paralleling a few LM338 if you like, this way you don’t need as many parts. Quote Link to comment Share on other sites More sharing options...
MP Posted August 24, 2006 Report Share Posted August 24, 2006 You could also use a 7809 with resistors added like on a 317 for adjustment above the 9 volt mark since you do not need voltage lower than 9 VDC.MP Quote Link to comment Share on other sites More sharing options...
gogo2520 Posted August 24, 2006 Report Share Posted August 24, 2006 I have a lm338, the data sheet says is can handle 5 amps. gogo Quote Link to comment Share on other sites More sharing options...
ante Posted August 24, 2006 Report Share Posted August 24, 2006 Hi gogo,Yes it can handle 5A but not over the entire range of 9 to 25Volts. Quote Link to comment Share on other sites More sharing options...
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