The QM48T45018-NDA0G from Bel Fuse is a DC to DC Converter with Input Voltage 36 to 75 V, Output Voltage 1 1.8 V, Output Current 1 45000 mA, Output Power 81000 mW, Operating Temperature -40 to 85 Degree C. Tags: Through Hole, Buck/Step down. More details for QM48T45018-NDA0G can be seen below.