The SMT01B-05 from Mean Well is a DC to DC Converter with Input Voltage 18 to 36 V, Output Voltage 1 5 V, Output Current 1 20 to 200 mA, Output Power 1000 mW, Operating Temperature -40 to 90 Degree C. Tags: Surface Mount, Buck/Step down. More details for SMT01B-05 can be seen below.