I used TPS23754 to design a 48V to 12V POE power DC-DC converter.
( Schematic is attached " named POE.pdf )
Recently, I changed the Mosfet Q2 to a other 2nd source component.
I found R241 should be changed from 4.99K to 0 ohm, or this design with this 2nd source component have damage problem.
I also found other TI reference design ( refer to slvu301.pdf ) have a similar design that the base of Q3 also doesn't connected any series resistor to limit the base current.
Is it safe to use 0 ohm for R241 in my design ?