Hi,
the LM25085 is a 100% duty cycle PFET buck converter.
Is it possible to use the buck with a high-side current sense OP-amp (seen in app note SNVA486A), to limit the inrush-current
in case of a long duration short or a inrush-current for heavy loads.
I want to put the FB-pin to gnd to realize Vout = Vin (here 24V). The PMOS should then be static on (100% duty cycle)
To switch the output off, i'll set the RT-pin to gnd.
Is the current-limiting function working with 100% duty cycle ?
Thanks,
Regards
Mattias