Microchip Technology Inc. Announces New Off-The-Shelf Radiation-Hardened 15W DC-DC Power Converter for Space Applications

Published: 2025-06-26 09:51:38 ET MCHP

Published on 06/26/2025 at 09:51

Microchip Technology announced the SA15-28 off-the-shelf radiation-hardened DC-DC 15W power converter with a companion SF100-28 EMI filter that are designed to meet MIL-STD-461 specifications. This space-grade power device is a standard, non-hybrid DC-DC isolated power converter with a companion electromagnetic interference (EMI) filter that operates from a 28V satellite bus in harsh environments. The SA15-28 is available with 5V triple outputs that are optimal for use with point-of-load converters and low-dropout linear regulators to power FPGAs and microprocessors (MPUs).

The small-form-factor SA15-28 weighs 60 grams and is approximately 1.68 cu inch to optimize the Size, Weight and Power (SWaP) of the device. Microchip can customize the output voltage combinations upon request. The SF100-28 EMI noise suppression filter can be used with numerous power converters with a total output power of up to 100W.

For added flexibility in space applications, the SA15-28 and SF100-28 are fully compatible with Microchip's existing SA50 series of power converters and SF200 filter. High reliability and performance are critical for power management solutions operating in harsh environments. The SA 15-28 DC-DC power converter is designed to operate across a wide temperature range, from 55degC to +125degC, and offers radiation tolerance up to 100 krad TID.

By offering proven off-the-shelf devices, Microchip enables customers to confidently scale their designs and reduce manufacturing delays. This scalable approach enables customers to upgrade from Commercial-Off-The-Shelf (COTS) to space-qualified level or from Radiation-Hardened By Design (RHBD) to sub-QML packaging options in ceramic or plastic. Development Tools: The SA15-28 DC-DC power converter is supported by comprehensive analysis and test reports including worst-case analysis, electrical stress analysis and reliability analysis.

Availability: The SA15-28 DC-DC power converter and SF100-28 external EMI filter are now available to purchase.