Product Releases

RAD-Hard ULDO Voltage Regulators Provide High Density Solution for Power-Restricted High Reliability Applications

Tue, 07/20/2010 - 9:36am
International Rectifier, IR® today introduced the first in a series of high current, ultra-low dropout (ULDO) RAD-Hard hybrid linear voltage regulators for space applications including satellites and launch vehicles.

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. The new regulators feature a Silicon On Insulator (SOI) CMOS Regulator IC, latch-up and SEU immunity, as well as outstanding TID and ELDRS testing in excess of 100 Krad with negligible effect on regulation tolerance. In addition, the devices provide fast transient response, timed latch-off over-current protection and internal thermal protection, and on/off control via shutdown pin.

The new ULDO devices’ adjustable regulators provide output voltages as low as 0.8 V compatible with the newer FPGA used in space equipment.


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