Microchip Introduces New Radiation-Tolerant Power Device for Space Applications

Published  January 18, 2023   0
S Staff
MIC69303RT - New Radiation-Tolerant Power Device

Microchip Technology, has announced the introduction of a new commercial-off-the-shelf (COTS) radiation-tolerant power device, the MIC69303RT 3A Low-Dropout (LDO) Voltage Regulator. This device is designed for use in Low-Earth Orbit (LEO) and other space applications, and is the first of its kind from Microchip.

The MIC69303RT is based on proven COTS devices, making it easier to conduct preliminary evaluation and early development. It operates from a single low-voltage supply of 1.65 to 5.5 volts, and can supply output voltages as low as 0.5V at high currents. The device offers high-precision and ultra-low dropout voltages of 500 mV under extreme conditions. It is also designed to be a companion power source solution for Microchip's radiation-tolerant space-qualified microcontrollers and FPGAs.

The device is available in both plastic and hermetic ceramic packaging options, to support the requirements of the mission. It is also operational in temperature ranges from -55°C to +125°C, and is offered in 8-pin and 10-pin package configurations with radiation tolerance up to 50 Krad. The low noise of the output is critical to sensitive RF circuits, post-regulation of switching power supplies and industrial power applications.

The MIC69303RT is the newest space-qualified product by Microchip and is manufactured in compliance with MIL Class Q or Class V requirements, such as screening testing, qualification testing and TCI/QCI specifications. The plastic version of the device is compliant with high-reliability plastic quality flow derived from AEC-Q100 automotive requirements with specific additional tests necessary for space applications.

Microchip also provides an evaluation board, the MIC69303RT Plastic Evaluation Board, which allows users to easily change and measure the electric parameters of the device at different input and output conditions. The device is available for limited sampling upon request and more information can be obtained by contacting a Microchip sales representative.