Voltage regulators for space applications

  • 17-Dec-2012 04:03 EST

International Rectifier’s high-current, ultra-low dropout RAD-hard hybrid linear voltage regulators come in Standard Microcircuit Drawings for space applications including satellites and launch vehicles. The Defense Logistics Agency, Land, and Maritime certified voltage regulators are also included in IR’s Radiation Hardness Assurance program that guarantees the devices’ radiation performance to the component level. The space-level screened devices, designed for point-of-load and post dc-dc power conversion, offer a low dropout voltage of only 0.4 V at full 3-A load. They come in two industry standard package styles, a 5-pin MO-078AA and an 8-pin flat pack, each with multiple lead bend options. The regulators feature a silicon-on-insulator CMOS Regulator IC, latch-up and SEU immunity with LET of 84 MeV·cm2/mg, as well as TID rating of 300 Krad (Si) and ELDRS testing in excess of 100 Krad (Si) with negligible effect on regulation tolerance.

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