The Low Temperature Electronics Group at NASA Glenn Research Center (GRC) is currently

performing investigation on the effects of cryogenic temperature and thermal cycling on

electronic devices and circuits. These activities are pursued in collaboration with other NASA

Centers and Jet Propulsion Laboratories (JPL) in support of the NASA Electronic Parts and

Packaging (NEPP) Program. DC/DC converters are widely used in space power systems in the

areas of power management, conditioning, and control. In this work, the performance of an

advanced commercial DC/DC converter was investigated under low temperature. The converter

module was investigated in terms of its output voltage regulation, efficiency, and ripple

characteristics. These properties, which were determined in the temperature range of -140 °C to

20 °C, were obtained at various load levels and at different input voltages. Some of the

experimental data obtained are presented in this summary. More detailed information is

presented in a NASA internal white paper [1], and the full report will be posted on the NEPP