Designed to provide high-quality, on-board power solutions in RF power amplifier systems and other distributed power applications, Ericsson Power Modules’ PKJ-N DC-DC converter offers high performance and reduced cost. The future proofed converter is DfE- and RoHS-compliant and therefore avoids requalification costs when soon-to-be-introduced legislation comes about. The converter’s electrical design is specifically adapted to fulfill RF load requirements.

The family presently consists of two products; 30.2V/8.3A/250W and 28.2V/11A/310W. At 91.5% at half load and 91% at full load, the converters are efficient and thus offer a longer system lifetime and reduced cost of energy consumption, reducing the total cost of ownership.

Ericsson PM’s metal-to-metal technology means significantly improved thermal management and performance at reduced cost. The converter uses an industry-standard half-brick design with widely used pin-out configuration for simple integration into existing amplifier designs and to provide secure sourcing.

The fully featured converters include output overvoltage, input undervoltage, over-temperature, and output short circuit protection, together with soft-start, remote sense, remote control and output voltage adjust functions. Keeping radiated EMI to a minimum, the PKJ4316N includes a ground plane in the PCB area under the DC-DC converter. This approach returns switching noise to ground as directly as possible, with improvements to both emissions and susceptibility.

With 1500 VDC input to output isolation, the converter meets isolation requirements equivalent to basic insulation according to IEC/EN/UL60950, and offering high reliability, the PKJ-N boasts a 3 million hours predicted MTBF.

In OEM quantities of 1000 pieces, the unit price is $61.50. The converters are designed according to mobile network RFPA requirements.