Half-Bricks Target Power Amplifier Applications

Murata announces the expansion of the PAH series half-brick dc-dc power converters from Murata Power Solutions with the addition of the PAH-28/12.5-D24 model. 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 designed 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 Vdc. The PAH topology offers high efficiency (up to 92.5%), tight line and load regulation, low ripple/noise, and a fast dynamic load response. A single-board, highly optimized thermal design contributes to 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.