The VTX-224-051-0524 from Vigortronix is a DC to DC Converter with Input Voltage 4.5 to 5.5 V, Output Voltage 1 15 V, Output Current 1 3.3 to 33 mA, Output Power 500 mW, Output Voltage 2 -15 V. Tags: Surface Mount, Buck-Boost. More details for VTX-224-051-0524 can be seen below.