Thanks Matt - looks excellent!

Cheers,
Zik

On 08/05/06, Matt Pobursky <piclist@mps-design.com> wrote:
> On-Semi NCP1421
>
> Highly integrated, efficient and relatively inexpensive. Digi-Key and
> Mouser (I believe) stock them.
>
> http://www.onsemi.com/pub/Collateral/NCP1421-D.PDF
>
> I like these parts a lot, they work well for either single or double
> cell step-up applications. I just designed it into a single cell AA
> powered, handheld medical device.
>
> Matt Pobursky
> Maximum Performance Systems
>
> On Mon, 8 May 2006 11:58:44 +1000, Zik Saleeba wrote:
> > I'm designing a handheld navigation device. It's a prototype for a
> > device which may or may not become a production item at some time in
> > the future, but for now it's basically a hobbyist effort. I'd like
> > to power it from two NiMH AA batteries and I need supply rails of 5V
> > and 3.3V. The current required is pretty low under 100mA on the
> > Battery life is a consideration, as is size.
> >
> > Does anyone have a preferred switching regulator to use in this
> > application? The main limiting factor is that relatively few boost
> > switchers will operate from the 2.4V I'll be getting from the
> > batteries.
> >
> > Thanks,
> > Zik
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