On Thu, Nov 15, 2012 at 08:15:15AM +0100, Guennadi Liakhovetski wrote: > parts are pretty simple - DCDC step-down, LDO. The first step-up DCDC > isn't a problem either. It's the second step-up supply, that I'm having a > problem with. It's output voltage can be regulated by using either a > voltage feedback or the three current feedbacks. In the current feedback > mode one has a choice between a manual mode, in which case you just choose > one of the feedbacks and everything is simple again, or in automatic mode.
This almost certainly has no other function than to drive a LED string for a backlight; it's not sensible to represent it via the regulator framework at all. Just implement it as a backlight and/or LED driver and have done with it unless you can find some other use for it.
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