At 04:07 PM 5/16/2005 -0500, you wrote:


>Which means that, yes, the regulator CAN survive the 4.5V on
>the input.  And that I wasted a lot of time and bandwidth on a
>question that I only needed to be prompted to think a little harder
>on, or rather, on a question I didn't need to ask but needed to
>think harder to realize I didn't need to ask.
>
>Mike H.

Well, don't beat yourself up over it. Sometimes when you're in the
thick of it all you need is a sounding board. A patient spouse, even if non-
technical, can sometimes suffice-- you just explain the problem in
straightforward terms, and the answer often pops out. Or a silly (on the
surface) suggested solution prompts a practical suggestion.

I still think you might not have a problem even with the battery.
Vout > Vin is essentially the same situation as reverse battery,
except in the latter case Vout = 0 and Vin = -Vbatt, vs. Vout = 5V and
Vin = 3V or whatever.

Best regards,

Spehro Pefhany --"it's the network..."            "The Journey is the reward"
speff@interlog.com             Info for manufacturers: http://www.trexon.com
Embedded software/hardware/analog  Info for designers:  http://www.speff.com
 >>>Inexpensive test equipment & parts http://search.ebay.com/_W0QQsassZspeff



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