On 17/01/2013 11:15 PM, Mark Hanchey wrote: > On 1/16/2013 11:18 PM, David Duffy (AVD) wrote: >> There are only 100 units to build initially and maybe some more after >> that, but not thousands. A PIC based solution would be low parts count >> and fairly easily tweaked to my mind. Does this sound like a reasonable >> solution? >> David... >> > I wouldn't use a PIC based design fro this as it seems like overkill > when so many easier switching designs are available. I like the LM2596 > part, 3A, 90%+ efficiency, and nothing to add but a diode and inductor.\ Does an LM2596 allow the input voltage to drop down to the same (or a=20 little lower) as the output voltage? I thought they are buck only. David... --=20 ___________________________________________ David Duffy Audio Visual Devices P/L Unit 8, 10 Hook St, Capalaba 4157 Australia Ph: +61 7 38235717 Fax: +61 7 38234717 Our Web Site: www.audiovisualdevices.com.au ___________________________________________ --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .