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.