> I'm going to resurrect my 78xx-switcher project.
>In this case, 78SW05 -- a small switcher circuit that
>will be a drop-in for a 7805, and NOT requiring external
>caps.  So far, I have designed it for 0.5A, since
>that's well within what I'm using it for.

Hmm, what chip are you using? I am looking at doing a similar thing using
either an LT1616 or LT3470 from Linear Technology, each capable of doing
about 200-300mA. Other chips they have look like they could do similar to
the full 1A equivalent of the 78xx devices.

The LT3470 is nice in that it will go to 40V input. The circuits in the
datasheet seem to use a couple of ceramic and a couple of tantalum caps,
with an inductor and a handful of resistors.

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