Hi,

I'm wondering if anybody can suggest a suitable votage regulator ic/ic's.

I need two outputs of 3.3v and 5v. The input will be either one or two li-po cells in series maybe more. The voltage range of one cell is about 3-4.23V (nominal = 3.7), for two it would be 6-8.46V.

The i.c's need to be availble in the uk. Ideally, any external ciruitry would be kept to a minium.

Cheers!

 

Have a look at national's site for the low drop out linear voltage regulators here:

http://www.national.com/analog/power/ldo#lilo

and

http://www.national.com/analog/power/ldo#wide_input