The MAU227 from Total Power International is a DC to DC Converter with Input Voltage 21.6 to 26.4 V, Output Voltage 1 9 V, Output Current 1 1 to 56 mA, Output Power 1000 mW, Output Voltage 2 -9 V. Tags: Through Hole, Buck/Step down. More details for MAU227 can be seen below.