The PKU4111D from Flex Power Modules is a Buck/Step Down DC-DC Converter that converts an input voltage of 36-75 V to an output voltage of 4-5.5 V. It has an output current of up to 30 A and power dissipation of up to 150 Watts. This buck converter consists of output over-voltage and short-circuits protection circuits in conjunction with over-temperature protection circuit. It can be operated using a monotonic start-up function and can be remotely controlled by the PMBus interface. This ISO 9001/14001 certified is available in a quarter-brick package that measures 33.02 x 22.86 x 13.2 mm and is ideal for telecom and datacom applications.