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LTC7804 Output Feedback...

Category: Hardware
Product Number: LTC7804

I'd like to use the LTC7804 as the power stage of a Solar Max power point tracker. (mppt)
Operating in boost mode to charge an Li Ion battery that is simultaneously
having power drawn from it.

So the Feedback pin is going to require some external circuitry to either set the Li Ion charge voltage if there is excess Solar power, or
to reduce the amount of energy  taken from the input side when the solar needs to be in mppt mode.

What is the behavior of the top switch when the converter goes into pulse skipping mode?

does this seem to be a reasonable application of this part?