Ericsson Expands PKD Series of DC/DC Power Modules

Ericsson Microelectronics (Stockholm, Sweden) expanded its PKD Series of single-output, lead-free, dc/dc power modules from the original 3.3V/8A version to include modules with 1.2V/14A, 1.5V/14A, 1.8V/14A, 2.5V/12A and 5V/6A outputs. All are designed for 48V input to meet the requirements of distributed power architectures in telecommunications and computer systems.

The new modules feature surface-mount construction to minimize assembly costs and are designed to withstand the high temperatures used in lead-free, reflow soldering processes. They are 88- to 90-percent efficient, low-profile units that contribute to high system reliability, low-heat dissipation and low system-maintenance costs.

The PKD power modules are just 7.5mm (0.3in) high to allow narrow board spacing and reduced system size. The devices operate over a wide temperature range without heatsinks and provide full power in ambient temperatures up to 70 degrees C in forced convection cooling of at least 1m/s (200lfm). The modules have a small footprint of 46mm x 50mm (1.81in x 1.97in) and weigh less than 22g. The modules have 1,500Vdc input/output isolation and the typical mean time between failures is greater than 590 years at +75 degrees C case temperature.

Pricing is $42 per piece for quantities of 1,000. Samples are available now.