On Sat, 2 Nov 2002, Jai Dhar wrote: *>Yes, the adjuster pin for the 317 has only a few uA, but the switch *>application is for the actual output from the regulator, which will be going *>up to 1.5A. I mentioned the adjustor pin because I needed advice on *>controlling the resistance digitally, hence a digital pot. Will the IRFP260N *>act as a simple switch with +5V = on and 0V = off? Why can't you switch the digital resistor from 0 to set value ? Saves you a switch. Minimum out voltage will be 1.2V with LM317. Peter -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads