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Ericsson delivers power converter with world-class efficiency and thermal management

New advanced bus converter builds upon company’s advanced Hybrid Regulated Ratio (HRR) topology to deliver up to 300W and 25A for high-power and high-performance applications. Offering efficiencies of up to 96% at 12V output, the module significantly reduces energy and cooling costs. PKB4313D’s advanced design offers an excellent thermal-derating profile for challenging environments that have high ambient temperatures or limited airflow. High-performance DC/DC converter delivers tightly regulated power for intermediate bus conversion applications in telecom and networking sectors.
E0198(A) PKB4313D

Ericsson today announced the launch of a new, low-profile, 12V-output, digital DC/DC converter module that offers up to 25A current handling and 300W of power to deliver tightly regulated voltages to point-of-load (POL) DC/DC regulators. Compatible with the DOSA (Distributed-power Open Standards Alliance) 5-pin eighth-brick footprint standard and offering an input range from 36V to 75V, the new PKB4313D advanced bus converter is ideal for intermediate bus conversion in ICT (Information and Communication Technologies) applications.

Offering excellent thermal capabilities, the new high-power module employs Ericsson’s leading-edge HRR technology to deliver high-power conversion across a wide input voltage range, while keeping power losses low. Combined, all these factors have resulted in a module that delivers high-efficiency power conversion with exemplary performance in thermally challenging environments. Delivering a typical efficiency that exceeds 96% with a 48V input and 12V output at half-load, the module also offers significantly reduced energy and cooling costs. Competitive products will typically dissipate 15% or more power at full load than the PKB4313D.

Martin Hägerdal, President, Ericsson Power Modules, says: “The new PKB4313D is the first in a new series of high-power advanced intermediate bus converters from Ericsson. The module combines the company’s innovative HRR topology, which has been further enhanced for this new series, together with world-class power efficiency, tightly regulated voltage capabilities and best-in-class thermal handling characteristics. Overall, the new product offers a compelling package that delivers significant competitive advantage to customers operating at the cutting edge in a range of telecom, networking and industrial applications.”