The BD9SD11NUX-C from ROHM Semiconductor is a DC to DC Converter with Input Voltage 2.7 to 5.5 V, Output Voltage 1 1.133 to 1.167 V, Output Current 1 600 mA, Operating Temperature -40 to 125 Degree C. Tags: Through Hole, Buck/Step down. More details for BD9SD11NUX-C can be seen below.