I'm looking for a switching regulator chip. Something inexpensive like the MC34063, but not limited to 100 KHz because I need to reduce the physical size of my layout, especially the inductor. Not having to use a current sense resistor would be nice too. The basic operating parameters will be 8V in, 3.3V out, at 1 amp. It doesn't have to be as cheap as the 34063, three times as much (US prices) would be OK if the rest of it were fantastic. Any suggestions? Thanks, Bob --=20 http://www.fastmail.fm - The professional email service --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .