The PKR2111A from Flex Power Modules is a DC to DC Converter with Input Voltage 18 to 36 V, Output Voltage 1 4.3 to 5.8 V, Output Current 1 1 A, Output Power 10000 mW, Isolation Voltage 1500 Vdc. Tags: Through Hole, Surface Mount, Buck/Step down. More details for PKR2111A can be seen below.