The E0505T-1WR4 from MORNSUN is a DC to DC Converter with Input Voltage 4.5 to 5.5 V, Output Voltage 1 5 V, Output Current 1 10 to 100 mA, Output Power 1000 mW, Output Voltage 2 -5 V. Tags: Through Hole, Buck-Boost. More details for E0505T-1WR4 can be seen below.