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100% DUTY CYCLE design know how.

Category: Hardware
Product Number: LTC7803

Hi ADI pal

I had choose LTC7803 for design. The 100% duty cycle and buck mode is my feature.
I plan to design 12-24V input/12V output/ I output 12.5Amp.


Is there anything I need to pay attention to in this case?

The only thing I noticed is:
Vin Tolerance.
Assume that Vin exists transient +-5% (11.4V)
The output also allow the 12V output to have tolerance, and it is also +-5% (11.4V). This is the ideal situation.
but what if when input is lower? how low will it stops to output? Does it depend on the feedback setting? Or is it foldback?