PICdude wrote:
> How about National Semi's LM22678-5.0?  Simple and relatively low  =

> cost, but I'm sure they'll have others with a lower parts cost (though  =

> more components).
> =

> http://www.national.com/pf/LM/LM22678.html

That's the part I've been looking at -- =A36 in singles and not much less =

in quantity until you get to >1k-off...

Its brothers, the LM2679 and LM2678, seem to be considerably cheaper. =

They're still =A36 in 1-off, but order ten of them and that's almost =

halved. Total cost of about =A38 for a pretty decent 5V SMPSU that'll take =

anything from 8V to 40V on the input...

And I doubt anyone's likely to have a >40V PSU with a 5.5x2.5mm DC power =

plug on it :)

-- =

Phil.
piclist@philpem.me.uk
http://www.philpem.me.uk/

-- =

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