The PKM2810EPI from Ericsson Power Modules is a 3.3V/25A output module delivering up to 82.5W. The module's high efficiency provides for a high thermal-derating performance. By optimising its circuitry and using special topology arrangements, it is possible to mount all the components on one side of the board, keeping the back side clean of components to simplify baseplate attachment or connection to cold-wall cooling. Another benefit of the module is its weight of 25g, requiring less energy during transportation and board stress when enclosed in sealed chassis. The module is aimed at telecom systems powered by 24V batteries and accepts input voltages from 18 to 36V. With its height of 8.5mm, the module is suitable for board and mechanical designers who integrate board-mounted modules into sub-systems. This feature also makes them suitable for narrow-board-pitch applications. The module has an on/off control that is referenced to the input side. A remote sense for the output voltage compensates for output-distribution drops, and an output-voltage trim range from 2.97 to 3.63V permits custom voltages and voltage margining.
