> Well, buffers and extra overhead is fine, but every volt I add to the
> input, while running at close to a full amp, adds an additional W of
> heat to be dissipated, so I'm trying to optimize this as much as
> possible.  And with the 10% tolerance of the device using it, I think
> I've got a good buffer already.

If you are this sensitive to the regulator overhead, either use a low
dropout regulator or create your own.  It won't be very hard to make a
basic regulator that can do 1A at less then 2V drop with cheap parts.  2V
is actually quite a bit to work with at 1A.  Just don't expect the same
transient response, at least without a lot of careful analisys and
tweaking, but it sounds like you don't need that anyway.


*****************************************************************
Embed Inc, embedded system specialists in Littleton Massachusetts
(978) 742-9014, http://www.embedinc.com

--
http://www.piclist.com hint: PICList Posts must start with ONE topic:
[PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads