The VTX-224-051-0310 from Vigortronix is a DC to DC Converter with Input Voltage 3 to 3.6 V, Output Voltage 1 3.3 V, Output Current 1 30 to 300 mA, Output Power 500 mW, Isolation Voltage 1000 V. Tags: Surface Mount, Buck-Boost. More details for VTX-224-051-0310 can be seen below.