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need a suggestion for a 5V DC step up circuit

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hako90210

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I'm trying to power a gps in a little box and only have space for 2 x AA and a few wires.. I need min 3.3v @ 125ma as this document says .. http://www.billiggps.dk/GM-305.pdf

Does anyone have a suggestion on the best way to power this gps in the pdf with 2 x AA.. I was looking at the LM2621 but don't know much about electronics , is this a good choice or is there something better.

I'm doing this for myself so looks, price , power life is not important.. If I can find a way to squeeze 30 min of battery life out of 2 AA.. that would be great.

Or possibly a tiny 5V battery that would fit in the space of 2 AA.


Thx
 

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