DC/DC CONVERTERS

The PKM 4000E series of high efficiency DC/DC converters are designed to provide high quality on-board power solutions in distributed power architectures used in Internetworking equipment in wireless and wired communications applications. The PKM 4000E series has industry standard quarter brick footprint and pin-out and is only 8.5 mm (0.33 in) high. This makes it extremely well suited for narrow board pitch applications with board spacing down to 15 mm (0.6 in). The PKM 4000E series uses patented synchronous rectification technology and achieves an efficiency up to 90% at full load. Ericsson’s PKM 4000E series addresses both the industrial and the emerging telecom market for applications in the multiservice network by specifying the input voltage range in accordance with ETSI specifications. Included as standard features are output over-voltage protection, input undervoltage protection, over temperature protection, soft-start, output short circuit protection, remote sense, remote control, and output voltage adjust function. These converters are designed to meet high reliability requirements and are manufactured in highly automated manufacturing lines and meet world-class quality levels. Ericsson Power Modules is an ISO 9001/14001 certified supplier.

• Industry standard Quarter-brick 57.9 x 36.8 x 8.5 mm (2.28 x 1.45 x 0.33 in)
• High efficiency, typ. 90 % at 3.3 Vout half load
• 1500 Vdc input to output isolation, meets isolation requirements equivalent to basic insulation according to IEC/EN/UL 60950
• More than 7.0 million hours predicted MTBF at +40 °C ambient temperature