> On 15 December 2010 18:09, V G <x.solarwind.x@gmail.com> wrote:
> So it's becoming too complicated to use linear regulators and stuff to
> create a power supply. I've just decided to go ahead and use a switching
> supply.

Is my technically good 5 cell solution not acceptable?

> TPS63020
>
> This one: http://focus.ti.com/docs/prod/folders/print/tps63020.html
>
> What do you guys think?

looks like an excellent part for your task.
Not cheap - but that's not a major issue here.

Happens to work best at about your desired load and battery voltage.
Synchronous rectification.
Good choice I'd say

      http://focus.ti.com/lit/ds/symlink/tps63020.pdf


            Russell
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