1W LED driver module

Dear All,

I'm looking for a source of small and preferably cheap boards that will drive a 1W (i.e. approx 3.3V, 350mA, constant current) white LED from a

3V input (i.e. 1 lithium or 2 alkaline cells). This sort of thing must be in, for example, almost all white LED bikelights.

For example, there's this evaluation board for the Sipex (aka Exar) SP6648 chip:

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I'd like something like that, but with just the active components, not the huge logo and big connectors that take up two-thirds of the area. Small size is the important thing (including thinness).

Has anyone seen anything like this? Searching for "LED driver board" mainly finds things with mains-voltage input.

Cheers,

Phil.

Reply to
Phil Endecott
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like this one ?

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or this one ?

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or eventually this one ?

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hope this helps...

--
Jean-Yves.
Reply to
Jean-Yves

Yes, thanks! That's exactly what I was looking for.

And they ship worldwide at no extra charge. Great.

(I'd still be interested in other suppliers though. Something thinner would be good; it should be possible to use a lower-profile inductor. Any European suppliers?)

Phil.

Reply to
Phil Endecott

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