The TBA 2-0521 from Traco Power is a DC to DC Converter with Input Voltage 4.5 to 5.5 V, Output Voltage 1 5 V, Output Current 1 0.2 A, Output Power 2 W, Output Voltage 2 -5 V. Tags: Through Hole, Buck-Boost. More details for TBA 2-0521 can be seen below.