What the MAX16907SAUE+ is and where it fits
The Maxim MAX16907SAUE+ is a step-down (buck) switching regulator with a single adjustable output that can also be fixed at 1V or 5V. It accepts an input range from 3.5V to 36V and delivers up to 3A of continuous output current.
Package and thermal handling
The 16-TSSOP exposed-pad package (4.40 mm body width) is a surface-mount part that requires a thermal land on the PCB. The exposed pad is the main heat path — without a proper via array to a copper plane, the junction temperature will rise quickly above 125°C at full load. The part is not synchronous-rectified (no internal low-side FET), so the Schottky diode you add for the catch diode also contributes to the thermal budget. Keep the diode close to the switch node and use a low-VF Schottky rated for at least the input voltage.
Sourcing and lifecycle
The MAX16907SAUE+ is listed as Active with RoHS3 compliance.
