Total Dose Testing of the Renesas ISL70005SEH Hardened Dual Output Point of Load Regulator

This paper reports the results of low and high dose rate total ionizing dose (TID) testing of the ISL 70005SEH dual output point of load converter, which combines a synchronous buck regulator and a low dropout voltage linear regulator. The test was conducted to characterise the part's total dose response and dose rate or bias sensitivity. We also performed biased high temperature anneals to evaluate time dependent effects.