The NDL0509SC from Murata is a DC to DC Converter with Input Voltage 4.5 to 9 V, Output Voltage 1 9 V, Output Current 1 55 to 222 mA, Output Power 2000 mW, Isolation Voltage 1000 V. Tags: Through Hole, Buck/Step down. More details for NDL0509SC can be seen below.