Radiation hardened 12A synchronous buck regulator offers enhanced design flexibility

The ISL70002SEHVF is a Single Event Effect (SEE) immune regulator, featuring high dose rate (HDR) and low dose rate (LDR) immunity. Its high level of integration eliminates the need for external components, reduces cost, board space, and provides the industry’s highest reliability for space and harsh environment applications. Additionally, the ISL70002’s Class V compliant hermetic solution meets the most stringent satellite program requirements.

Key features include: a maximum junction temperature of 150 degrees C allowing designers to take advantage of the ISL70002’s output power; synchronous rectification providing higher efficiency than standard buck regulators, especially at lower output voltages; a current sharing capability that supports paralleled regulators; designed for complete single event immunity at LET = 86.4MeV and SEL, SEB, SET, and SEFI hardened

Two ISL70002s can be paralleled to support output currents up to 19A (@ 150C junction temperature), making this the ideal power solution for FPGA-based designs. Only one bias rail is required, simplifying system power architecture design by eliminating an additional regulator or FET to step the voltage down to less than 4.5V.


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