80V Withstand 5A output power supply ICs ROHMâs new buck DC/DC converter ICs with built-in MOSFET, support high voltages and currents in factory automation equipment such as PLCs/inverters, and 5G base stations that handle high power. The BD9G500EFJ-LA and BD9F500QUZ address the growing demand for power supply ICs that are not only compact and operate at high efficiency, but also deliver large currents for operating multiple functions and that can withstand high voltages to prevent damage from sudden surges. These devices are non-isolated DC/DC converter ICs developed by utilizing proprietary analogue design technology based on high voltage BiCDMOS power processes to provide the power supply functionality required by increasingly sophisticated industrial equipment.