The SPX1F5D9 from Calex Manufacturing is a DC to DC Converter with Input Voltage 4.5 to 5.5 V, Output Voltage 1 9 V, Output Current 1 56 mA, Output Power 1 W, Output Voltage 2 -9 V. Tags: Through Hole, Buck-Boost. More details for SPX1F5D9 can be seen below.