On Mon, Sep 17, 2012 at 1:10 PM, Marc Nicholas wrote= : > For my application, they're good for something like ~350mA...which is abo= ut > the power budget I needed. It was definitely tight, though, and the 800mA > is aloof for most applications. Can you provide details? Input/Output voltage and efficiency at 350 mA? Any deviations from the reference circuit? The 1640 does look like a nice chip, particularly given the price. -p. --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .