> How about an LT3080.

Yes, that's the basic system.
As long as they have not got it so tied up i patents that it strangles itse=
lf

http://cds.linear.com/docs/Datasheet/3080fc.pdf


>
> Pretty hard to find so far in a lot of countries and expensive, but a dam=
n
> nice regulator.
--=20
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