Designed for harsh space environments, the compact solution offers high reliability, compatibility with existing systems for scalable power management.
Microchip Technology with over six decades of space mission expertise, has expanded its space-grade product portfolio with the launch of the SA15-28, a radiation-hardened 15W DC-DC power converter. The company also introduced a companion EMI suppression filter, the SF100-28, designed to meet MIL-STD-461 EMI specifications. The converter operates directly from a 28V satellite bus and is tailored for use in demanding environments.
The key features are:
- Compact size: Only 60 grams and 1.68 cubic inches
- Operates in extreme temperatures: −55°C to +125°C
- Radiation tolerant: Up to 100 krad Total Ionizing Dose (TID)
It is a non-hybrid, isolated power converter featuring triple 5V outputs, making it ideal for point-of-load converters and low-dropout linear regulators—often used with FPGAs and microprocessors. It helps optimize Size, Weight, and Power (SWaP), a critical factor in space systems. The filter supports multiple converters with up to 100W total power, and both new products are compatible with the company’s existing SA50 power converter and SF200 EMI filter lines.
These off-the-shelf components give designers the flexibility to scale space power systems without long lead times. It supports high reliability and wide temperature operation. Designed using discrete components rather than hybrids, the construction allows for faster prototyping and reduced time to market. Customers can scale from COTS to space-qualified options and choose between ceramic and plastic sub-QML packaging. Both products are backed by comprehensive support, including worst-case analysis, electrical stress, and reliability reports.
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