08-07-2025 | Microchip Technology | Power
Traditional space applications have long needed space-grade components to help ensure the success of missions. With over 60 years of space heritage, Microchip Technology continues to expand its space portfolio, announcing the SA15-28 off-the-shelf radiation-hardened DC-DC 15W power converter, accompanied by the SF100-28 EMI filter, both 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 EMI filter, operating from a 28V satellite bus in harsh environments.
The device is available with 5V triple outputs that are optimal for use with PoL converters and low-dropout linear regulators to power FPGAs and MPUs. The small-form-factor SA15-28 weighs 60g and is approximately 1.68 cubic inches to optimise the SWaP of the device. The company can customise the output voltage combinations upon request.
"Microchip's space-grade portfolio with the new SA15-28 power converter and SF100-28 EMI filter allows our customers to customise and scale their space power systems to meet the specifications of their application," said Leon Gross, corporate vice president of Microchip's high-reliability and RF business unit. "The non-hybrid or discrete component-based construction is specifically designed to enable flexibility and faster time to market."
The SF100-28 EMI noise suppression filter can be used with various power converters that have a total output power of up to 100W. For added flexibility in space applications, the SA15-28 and SF100-28 are fully compatible with the company's existing SA50 series of power converters and SF200 filter.
High reliability and performance are vital for power management solutions operating in harsh environments. The SA15-28 DC-DC power converter is designed to operate across a wide temperature range, from −55C to +125C, and offers radiation tolerance of up to 100krad TID.
By offering proven, off-the-shelf devices, the company enables customers to scale their designs and reduce manufacturing delays with confidence. This scalable approach allows customers to upgrade from COTS to space-qualified level or from Radiation-Hardened By Design (RHBD) to sub-QML packaging options in ceramic or plastic.
