New Industry Products

RoHS Compliant DC-DC Module From Ericsson Offers 25% More Power

December 01, 2005 by Jeff Shepard

Ericsson Power Modules’ (Stockholm) RoHS compliant PKB4913PINB dc-dc converter module has the same footprint as its predecessor and offers 25% more power, increasing the power to space ratio. This module addresses all new applications using a 48V input that requires a stable 12V to optimize the efficiency of intermediate bus conversation applications.

“Designed from the beginning to comply with RoHS and Ericsson Power Modules own DfE (Design for Environment) requirements, the PKB4913PINB has been developed under strict conditions of environmental control, with special attention to sub-manufacturing processes and enforced legislation” stated Patrick Le Fevre, Marketing Director with Ericsson Power Modules.

The module’s near 100W output capability and tight regulation characteristics also make it possible for designers to optimize the combination of dc-dc modules and point-of-load (POL) devices for the lowest possible power consumption, contributing to reduce unnecessary power losses resulting from an inadequate power architecture.

These modules are intended for use in data storage, servers, datacom, and all 48V systems as well as applications that have a requirement to combine the wide input voltage range that is inherent to battery backup systems with intermediate 12V bus converters.

The main driver in the demand of this device is the development of intermediate bus converters in traditional telecom/datacom environments that are powered by 48V supplies and require stable intermediate 12V bus architecture.

Rated at 90W/7.5A, the PKB4913PINB is footprint compatible with Ericsson Power Modules’ earlier 72W PKB4713PINB module, providing a simple upgrade route when a higher power level is required to meet the needs of a new DSP or ASIC.

The PKB4913PINB uses a secondary synchronous rectifier design topology with start-up control to guarantee a monotonic rise, and features integrated magnetic components with a multiplayer, RoHS compliant PCB. These new dc-dc modules are priced at $25 in OEM quantities.