Microchip Launches Radiation-Tolerant Power Management Device Targeting Low-Earth Orbit Space Applications

The commercialization of the Low-Earth Orbit (LEO) region is transforming space exploration and satellite communication at roughly 1,200 miles above Earth. For satellites to successfully operate and reach their destination, it is essential to select components that can withstand the harsh space environment. Building on its existing radiation-tolerant portfolio, Microchip Technology Inc. announces the introduction of its first commercial-off-the-shelf (COTS) rad-tolerant power device with the MIC69303RT 3A Low-Dropout (LDO) Voltage Regulator. The new high-current, low-voltage MIC69303RT is a power management solution targeting LEO and other space applications. The device is available for prototype sampling in both plastic and hermetic ceramic to support the requirements of the mission.

The MIC69303RT is based on proven COTS devices, making it easier to conduct preliminary evaluation and early development. Operating from a single low-voltage supply of 1.65 to 5.5 volts, the device can supply output voltages as low as 0.5V at high currents, offering high-precision and ultra-low dropout voltages of 500 mV under extreme conditions. The MIC69303RT is a companion power source solution for Microchip’s radiation-tolerant space-qualified microcontrollers such as the SAM71Q21RT and PolarFire® FPGAs including the RTPF500TLS (more info).