PAH-28 Vout, 350-Watt Series Power Converter

Murata Power Solutions
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PAH-28 Buy Now

For applications requiring improved electrical and thermal performance, consider Murata’s new PAH series “Half Brick” DC-DC power converters. These compact modules measure 2.3" X 2.4" X 0.5" (58 X 61 X 12.7mm) and offer the industry-standard Half Brick footprint.

The PAH Series is ideal for power amplifier applications, wireless networks, and telecom applications. The baseplate provides a means for conduction cooling in demanding thermal environment conditions.

The module provides a 28Vdc output at 12.5 Amps and accepts a wide input voltage range of 18-36 or 36-75 Vdc. The PAH topology offers high efficiency (up to 93%), tight line and load regulation, low ripple/ noise, and a fast dynamic load response. A single board, highly optimized thermal design contributes to the superior thermal performance.

These half-bricks provide output trim, sense pins, and primary side on/off control. Standard features also include input under-voltage shutdown, output over-voltage protection, output short-circuit/ current limiting protection, and thermal shutdown.


  • 28Vout @ 12.5A (350W)
  • Trimmable 16.8 Vout to 32.2 Vout @ 350W with Vin = 18-36V (D24) or 36-75V (D48)
  • Industry Standard “Half Brick” package
  • High Efficiency: up to 93%
  • Outstanding thermal performance
  • Standard baseplate for conduction cooled applications
  • No output reverse conduction
  • Input to Output Isolation, 2250Vdc (Basic)
  • Input under-voltage lockout
  • On/Off Control (Positive or Negative Logic)
  • Output over-voltage protection
  • Thermal shutdown
  • Output short circuit protection (hiccup technique)
  • Certified to UL/EN 60950-1, CSA-C22.2 No. 60950-1, 2nd edition safety approvals