Miniature Buck Converter Delivers 4A

Gmunden, June 10, 2021 – RECOM announces the RPX-4.0 cost-effective buck converter in a QFN package.

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

The RPX-4.0 efficiency is high, allowing full power operation up to 65°C and derated operation up to 90°C. Construction follows the RECOM ‘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 maintain high efficiency even at light load.

The RPX-4.0 needs just voltage setting resistors and input/output capacitors for a complete high-performance solution and is delivered with the RECOM 3-year warranty. An evaluation board, RPX-4.0-EVM-1, is also available, allowing customers to exercise all of the product features and optimize filtering to meet target system requirements.

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