The MAX17270 from Analog Devices is a DC to DC Converter with Input Voltage 2.7 to 5.5 V, Output Voltage 1 0.8 to 4.6 V, Output Current 1 80 mA, Operating Temperature -40 to 85 Degree C, Storage Temperature -60 to 150 Degree C. Tags: Surface Mount, Wafer-level Packaging, Buck/Step down. More details for MAX17270 can be seen below.