Cost-effective miniature buck converter delivers 4A

RECOM adds a 4A option to its RPX series of miniature buck converters. The RPX-4.0 is rated from 3.8V to 36V input and programmable 1V to 7V output at 4A. Offering a compact 5mm x 5.5mm footprint and low 4.1mm height in a thermally-enhanced QFN package, the buck module raises the limit on power density. The product provides on-off control, a power good signal, and soft start, and is completely protected, including under-voltage, short-circuit, over-current, and over-temperature.

The device efficiency is high, providing full power operation up to 65C and derated operation up to 90C. Construction follows the company's ‘3D Power Packaging’ technology for high power density, with flip-chip on leadframe construction, an integrated shielded inductor for low EMI, and intelligent control of switching frequency to sustain high efficiency even at light load.

It requires just voltage setting resistors and input/output capacitors for a comprehensive, high-performance solution and is presented with the company's three-year warranty. An evaluation board, RPX-4.0-EVM-1, is also available, enabling customers to exercise all product features and optimise filtering to satisfy target system demands.

“We are excited to launch the latest in our RPX series of buck converters,” commented Matthew Dauterive, DC-DC product manager, RECOM. “Users will find it particularly suitable for industrial automation, test and measurement, portable devices, and high density or weight-sensitive applications.”