Analog Devices Inc. MAX17631 Synchronous Step-Down DC-DC Converter comes with integrated MOSFETs and operates over an input-voltage range of 4.5V to 36V. It can deliver up to 1.5A current. The MAX17631 is available in three variants, MAX17631A, MAX17631B, and MAX17631C. The MAX17631A and MAX17631B are fixed 3.3V and fixed 5V output parts, respectively. The MAX17631C is an adjustable output voltage (from 0.9V up to 90% of the VIN) part. Built-in compensation across the output-voltage range eliminates the need for external compensation components.