I'm thinking of using either an LMZ12002, or an LM2670S-5.0, as I have =20
boards already laid out for these.

I haven't tinkered with any of the Microchip switchers yet, but I'll =20
have to start soon, as I've already felt the expected pain of TI's =20
crappy support for National's great switchers.

Cheers,
-Neil.


Quoting IVP <joecolquitt@clear.net.nz>:

>> instead of powering the devices with 12V and letting the linear
>
> Yes, I would certainly look at DC-DC conversion rather than
> waste power through linear regulators
>
> You should be able to get > 90% efficiency
>
> I've tried some of the 1-2-3 cell boost converters, from Microchip
> and others, and found them very good
>
> This one, MCP16301
>
> http://www.microchip.com/wwwproducts/Devices.aspx?dDocName=3Den554058
>
> looks a likely candidate, even if it means using a couple in parallel
>
> Input 4-30V, output 5V @ 600mA, up to 98% typical efficiency
>
> Joe
> --
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