buck driver search

[SUBjohan]

Hi,

I am looking for a buck driver capable of driving 3x XP-G @ +/-1,5A from 4S li-ion. Ok so far no problemo

But I would like to have the following 2 features:
- low voltage protection for my battery pack
- dimming via external trimpot, or controlled dimming with multiple reedcontacts.

So something like a taskled flex driver with added dimming control.

Does anyone has any idea where to get such a driver?

Greetz Johan

 

[SUBjohan]

No one??

 

[mdocod]

I'm wondering if one could wire up a pot to the sense resistor on a common buck regulator to get the variable output idea rolling. I'd imagine that is how variable output would be best done but the tricky part is probably finding the pot combined with an appropriate alternative resistor that gives the desired range.

Best of luck in your search. Sorry I couldn't be of more help.

Eric