Buck regulator for 3.5V–36V rails, 600 mA continuous
The Maxim Integrated MAX20075ATCC/V+T is a synchronous step-down (buck) switching regulator delivering up to 600 mA from a wide input range of 3.5 V to 36 V. The output is programmable via external resistors to a fixed voltage between 1 V and 10 V, with the positive output configuration typical for point-of-load regulation. Housed in a 12-WFDFN exposed-pad package (3 mm × 3 mm TDFN footprint), it mounts on the board with the thermal pad soldered to a copper plane for heat sinking. The synchronous rectifier eliminates the external Schottky diode, saving board area and improving efficiency at moderate loads.
Input range and output current — what they mean for the BOM
The 3.5 V minimum input lets this regulator start from a 5 V rail with margin, while the 36 V maximum covers 24 V industrial supplies and automotive battery-line transients (though the 0°C to 70°C temperature grade limits it to indoor or controlled-environment use, not under-hood automotive). The 600 mA output is the continuous rating — size the inductor and output capacitor for that load plus ripple current. At light loads the synchronous rectifier keeps efficiency above 80% typical; at full load the exposed pad must be soldered to a copper plane to keep junction temperature within limits.
Lifecycle and sourcing reality
The MAX20075ATCC/V+T carries an Active lifecycle status with ROHS3 compliance.