Non-hybrid space-grade power converters includes V-input radiation-tolerant options

27-01-2022 | Microchip Technology | Power

Microchip Technology has removed the cost, complexity and customisation difficulties of hybrid solutions by providing a discrete-component-based, space-grade DC-DC power converter family that now includes 28V-input, 50W radiation-tolerant options.


"Our latest 28V-input SA50-28 products greatly simplify and accelerate system development," said Leon Gross, vice president of Microchip's discrete product business unit. "They are easier to customise than alternative space-grade power converters so they can meet specific voltage, current and other needs. Customers gain flexibility while reducing the size, cost and complexity of their space system designs."


Its SA50-28 family is the industry's only off-the-shelf, 28V-input, radiation-tolerant power converter offering founded on discrete components with surface-mount construction and non-hybrid assembly processes. Providing more capabilities than alternative off-the-shelf, space-grade power converters, a single device with customised parameters eradicates the volume, weight, and complexity of employing hybrid solutions with their multiple devices and surrounding circuitry.


The comprehensive product line is a 20V- to 40V-input, 50W family with nine standard outputs of 3.3V, 5V, 12V, 15V and 28V in single- and triple-output configurations. The devices may be tailored to a system's exacting power requirements relatively quickly with minimal extra costs compared to hybrid-style power converter products. Other features include high efficiency, low output noise, output inhibit control, overcurrent protection, external synchronisation and full-rated power operation through −55C to +85C with linear derating to +125C.


The new family is part of the company's growing line of standard non-hybrid, space-grade power converters that allow designers to employ commercially available, off-the-shelf components whose circuitry has a proven spaceflight heritage.

Related product news