NAI’s VPX55-3 is a 400-Watt DC/DC Converter that plugs directly into a standard 3U VPX chassis with a 0.8” slot. It is conduction-cooled through the card edge/wedgelock. This programmable, switching power supply can be used either as a single-stage module or a back-end module in a multiple power supply configuration. It accepts +28 VDC input voltage and provides six outputs at up to 300W (standard).

Standard features include continuous Background Built-in-Test (BIT); remote error sensing; and protection against transients, over-voltage, over-current, and short-circuits. Options such as 400W output power, reverse polarity protection (300W version only), and current share 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.

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Key Features

  • Ideal for rugged 3U VPX power applications
  • Standard VPX-compatible connectors and I/O per VITA 62
  • Compatible with System Management Bus per VITA 46.11
  • Output power up to 300W standard or 400W optional
  • Integrated EMI filtering per MIL-STD-461F
  • Input transient protection per MIL-STD-704F
  • Input transient protection w/reverse polarity protection per MIL-STD-1275B (optional for 300 Watt version only)
  • Operates at full load through the entire -40°C to +85°C temperature range
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  • Specification

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