150-Watt DC/DC Converter, 3U cPCI

150-Watt DC/DC Converter, 3U cPCI

Model DC/DC 55MQ2

150-Watt DC/DC Converter, 3U cPCI

NAI’s 55MQ2 is a 150 Watt DC/DC Converter that plugs directly into a standard 3U cPCI chassis with a 0.8” slot. It is conduction-cooled through the card edge/wedgelock. This modular, switching power supply accepts +28 VDC input and provides a single output at up to 150 Watts. Higher power applications are addressed using multiple units with the optional current share feature.

Standard features include continuous Background Built-in-Test (BIT); remote error sensing; and protection against transients, overvoltage, overcurrent, and short circuits. Options such as current share, revere polarity protection, and I2C communication are available.

This COTS converter is specifically designed with NAVMAT component derating for rugged defense and industrial applications. It is also designed to meet the many harsh environmental requirements of military applications.

Power Supply Reference Guide

For new applications, please refer to our 75PS4 product page.


  • Ideal for rugged, 3U cPCI power applications
  • IEEE 1101.2-compliant
  • Standard PCI 47 pin connectors and I/O per PICMG 2.11
  • Compatible with Power Management Bus
  • Integrated EMI filtering per MIL-STD-461E
  • Input transient protection per MIL-STD-704B through E
  • Input transient protection per MIL-STD 704A or MIL-STD 1275AT (optional)
  • Operates at full load through the entire -40° C to +85° C temperature range
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55MQ2 Specification