V G wrote:
>> I guess I missed something in the flurry of messages, but I thought
>> you
>> were
>> now using a switcher so the input voltage above 5.5V is not a
>> problem, in fact desirable.  Certainly a switcher can be set to
>> deliver pretty close to 5V out, so what's 5.5V got to do with
>> anything now?
>
> The switching supply that I'm using, ..., has only a
> 1.8 - 5.5 volt input range.

So don't use that one.  Pick a switcher to fit the problem, not try to warp
the problem because you arbitrarily picked a inconvenient switcher.

There are many reasonably complete buck switcher chips out there that can
easily handle 5 or 6 cells in and produce 5V at 1A out.  I would dig around
on the Linear site since they have a reasonable selector tool.  They tend t=
o
be expensive, but for one off that doesn't matter.  Also check out what ST
has.


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