The ATA00B18S-L from Artesyn Embedded Power is a DC to DC Converter with Input Voltage 9 to 36 V, Output Voltage 1 12 V, Output Current 1 0.25 A, Output Power 3 W, Isolation Voltage 1.5 kV. Tags: Through Hole, Boost/Step Up. More details for ATA00B18S-L can be seen below.