The BD9130NV from ROHM Semiconductor is a DC to DC Converter with Input Voltage 2.7 to 5.5 V, Output Voltage 1 1 to 2.5 V, Output Current 1 2000 mA, Operating Temperature -25 to 105 Degree C, Storage Temperature -55 to 150 Degree C. Tags: Surface Mount, Buck/Step down. More details for BD9130NV can be seen below.