VPX57-31 – 400 Watt (270Vdc input) DC/DC Converter, 3U VPX

North Atlantic Industries

NAI’s VPX57-31 is the industry's first 400-Watt DC/DC Converter that accepts a +270Vdc input and plugs directly into a standard 3U VPX chassis with a 1.0" power supply slot. This off-the-shelf solution for .0 and systems is compatible with VPX specifications; supports all VITA standard I/O, signals, and features; and conforms to the VITA 62 mechanical and electrical requirements for modular power supplies.

The VPX57-31 switching power supply is conduction-cooled through the card edge/wedgelock. It accepts +270 VDC input voltage and provides six outputs (per VITA 62) at up to 400 Watts.

The VPX57-31 can be used either as a single-stage module or a back-end module in a multiple power supply configuration.

With its intelligent design, the VPX57-31 also has the flexibility to address special needs and meets the many harsh environmental requirements of military applications.


  • 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
  • Off-the-shelf solution for VITA 46.0 and VITA 65 systems
  • Supports all VITA standard I/O, signals, and features
  • Accepts +270 VDC input
  • Provides six outputs and I/O at 400 Watts
  • Continuous Background Built-in-Test (BIT)
  • User Programmable
  • I 2C Communication
  • Discrete Signaling
  • Current share
  • Environmentals per Mil-Std-810G and VITA 47
  • Input transient protection per MIL-STD-704F
  • Integrated EMI filtering per MIL-STD-461F
  • Operates at full load through the entire -40°C to +85°C temperature range

North Atlantic Industries, Inc.
Phone: (631) 567-1100
Web: www.naii.com

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