The MAX17223 from Analog Devices is a DC to DC Converter with Input Voltage 0.4 to 5.5 V, Output Voltage 1 1.8 to 5 V, Output Current 1 200 mA, Operating Temperature -40 to 85 Degree C, Storage Temperature -40 to 150 Degree C. Tags: Surface Mount, Buck/Step down. More details for MAX17223 can be seen below.