The BD9F500QUZ from ROHM Semiconductor is a DC to DC Converter with Input Voltage 4.5 to 36 V, Output Voltage 1 0.6 to 14 V, Output Current 1 0 to 5000 mA, Storage Temperature -55 to 150 °C. Tags: Surface Mount, Buck/Step down. More details for BD9F500QUZ can be seen below.