Pioneering advanced bus converter delivers industry-leading efficiency

Ericsson’s newly launched PKB4413DA is a low-profile, 408W DC-DC converter module, designed to provide POL DC-DC converters with tightly regulated 12V output at up to 34A. The module’s five-pin, 1/8-brick footprint is compatible with the Distributed-power Open Standards Alliance’s (DOSA) standard and has a full 36V-75V telecom input range. This combination makes it ideal for intermediate bus conversion in information and communication technologies (ICT) applications. Designers who choose the device will benefit from Ericsson’s pioneering HRR technology, which minimises power losses while delivering high-power conversion from a wide range of input voltages. The module offers class-leading performance in thermally challenging situations. Efficiency can be up to 96% with a 48V input and 12V output at half-load. This means the PKB4413DA cuts energy and cooling costs considerably. Ericsson’s module meets the deployment requirements for intermediate bus voltage and distributed power architectures, and is primarily aimed at high-performance, high-power use cases in industrial, networking, telecoms, servers and data storage equipment.