Bus converters deliver high efficiency for telco and networking applications

Murata is introducing the DRQ-8/100-L48xx series of quarter brick, intermediate bus converters (IBC), developed specifically for high-reliability infrastructure equipment applications. The DRQ series is designed to deliver 800W at 55C to address the high power density requirements for high-reliability networking and telecommunications infrastructure equipment. The fully regulated bus converters provide 8Vout at 100A, with a Vin range of 36VDC to 60VDC. With a regulated output voltage of 8V, improved efficiency of secondary point of load regulators will be achieved, increasing the overall efficiency of the power system. With improved efficiency comes reduced system operating costs, lower temperatures, and improved system reliability. The series was designed to operate over the full 36-60Vin range in telecommunications applications operating from 48VDC battery systems or networking equipment that operates at 54Vin. In order to provide industry-leading reliability, the series is designed and tested to meet the industry requirements of IPC-9592 Revision B. Ideally suited for intermediate bus converter architectures used in the networking and telecommunications infrastructure equipment market, the series is suitable for applications including communications equipment, routers, network security equipment, wireless base station hardware, and computing equipment. It is also suited to other applications that require a highly efficient, 800W IBC that will support a Vin range of 36-60Vdc to power board level electronics.