Yes. The part has a pre-regulator always ON internal supply that powers the thermal Shutdown circuit. Thus the VCC is able to turn OFF when the part reached thermal shutdown temp. and then turn back on…
The power loss that lead to temperature rise of the part can be calculated as:
Ploss= (Pin-Pout) - Pind = Pout x (1/η-1) - DCR x Iout^2
Where η is efficiency of the converter ; Pind is power…
Two solutions, MAX1757x which has lower Rdson than MAX1750x, this will provide better thermal performance. Or MAX17557 which is one controller with external MOSFET if the additional required board space…
