Well, aside from cutting the cell in half and connecting the remaining
parts into two cells...

Linear technology and others make devices to do exactly this.  This one
doesn't use inductors (just a few caps and the chip), and provides 3.3V
at 10mA:

http://www.linear.com/prod/datasheet?datasheet=441&product_family=power

Operating current is 40uA, shutdown current is 5uA
The full datasheet is here:

http://www.linear.com/pdf/15023f.pdf

-Adam

GB wrote:

>Has anyone designed a simple, cheap circuit, that boosts a 1.5V battery to at least 3V to run a PIC, ideally it should not use much current in the conversion < 200ua?.
>
>Any ideas anyone, I have seen circuits that can power 3.6V LED's but I suspect they may not be suitable as they are pulsed?
>
>
>Thanks Gary
>
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