3.7v to 5v

[mvs_sarma]

I would like to use a 3.7 volt lithium iron battey in my next project, but I need a 5 volt supply at 500mA so I need to convert 3.7 volt to 5 volt. Anyone got any schematics. Ive pullled apart a psp power pack to see what chip is used, but Im unable to source the chip used in the pack.

Sphere.

Hi,
you can try the old and reliable MC34063A
datasheet at www.alldatasheet.com

off late you get MAX172x series in SMD and it is good. you may download a datasheet for max1722 and 1724., i fear it may not, give 500mA.