The MAX1972 from Analog Devices is a DC to DC Converter with Input Voltage 2.6 to 5.5 V, Output Voltage 1 1.8 to 3.3 V, Output Current 1 750 mA, Output Voltage 2 1.5 to 2.5 V, Operating Temperature -40 to 85 Degree C. Tags: Surface Mount, Buck/Step down. More details for MAX1972 can be seen below.