QorTek is proposing to design, develop, and demonstrate a rad-hard ASIC-controlled GaN-based multichannel POL Converter to significantly reduce size/weight costs by utilizing high frequency, rad-hard GaN switching technology (which miniaturizes magnetics) and incorporating key control features onto a custom controller ASIC which will eliminate the need for additional large ICs to perform functions such as power sequencing. Each channel will comprise selectable 0.9V to 3.3V outputs of a high-performance synchronous buck converter supplying 10A. We plan to develop a multichannel rad-hard ASIC controller/modulator that is a follow-on to our existing single channel rad-hard ASIC controller/modulator. Potential NASA Applications (Limit 1500 characters, approximately 150 words) Much of the development aims at supplying NASA and the space community with rad-hard multichannel POL regulators providing the very tight regulated voltages needed for on-board FPGAs aimed at beyond LEO missions. Specific targets are NASA New Frontiers missions such as LOP-G cislunar Orbiter/Surface Exploration/Surface Habitat following onto Mars habitat missions that will probably employ a combination of radio isotope (nuclear fission) and solar based power supplies. Another prime target is beyond LEO deployed SmallSat/CubeSat platforms. Potential Non-NASA Applications (Limit 1500 characters, approximately 150 words) Proposed Hi-Rel versions of the multi-output POL regulator and associated multichannel ASIC will find ready markets in military underwater and land systems, As commercial and military aircraft switch from mechanical and analog systems, to "more-electric" configurations they will have increasing POL needs to meet aircraft secondary power, power converters and digital control electronics needs.
