The MAXM17631 from Analog Devices is a DC to DC Converter with Input Voltage 4.5 to 36 V, Output Voltage 1 5 V, Output Current 1 1000 mA, Operating Temperature -40 to 125 Degree C, Storage Temperature -55 to 125 Degree C. Tags: Buck/Step down. More details for MAXM17631 can be seen below.