On 15 October 2013 17:33, Neil <picdude3@narwani.org> wrote:

> I'm thinking of using either an LMZ12002, or an LM2670S-5.0, as I have
> boards already laid out for these.
>

Or use 6V lead acid batteries.
Linear efficiency at 6.5 V down to 6V in, for Vout =3D 5V =3D 77% up to 83%=
 end
to end including any wiring drops.
Not as good as a good buck converter, but not so much worse that the
simplicity may not be attractive.


    Russell
--=20
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