IR introduces ULDO Devices For Space Applications
International Rectifier (IR) has launched a series of high-current, ultra-low dropout (ULDO) RAD-Hard hybrid linear voltage regulators for space applications such as satellites and launch vehicles. IR has developed a control IC and bypass transistor for the ULDO range, which are suited for use in power-restricted applications requiring high density. The space-level screened devices, designed for point-of-load and post DC-DC power conversion, offer a dropout voltage of 0.4V at full 3A load.
The regulators feature a Silicon On Insulator (SOI) CMOS Regulator IC, latch-up and SEU immunity, as well as TID and ELDRS testing in excess of 100 Krad, with negligible effect on regulation tolerance. The devices provide fast transient response, timed latch-off over-current protection and internal thermal protection, and on/off control via shutdown pin. The ULDO devices' adjustable regulators provide output voltages as low as 0.8V, compatible with the newer FPGA used in space equipment.
The regulators feature a Silicon On Insulator (SOI) CMOS Regulator IC, latch-up and SEU immunity, as well as TID and ELDRS testing in excess of 100 Krad, with negligible effect on regulation tolerance. The devices provide fast transient response, timed latch-off over-current protection and internal thermal protection, and on/off control via shutdown pin. The ULDO devices' adjustable regulators provide output voltages as low as 0.8V, compatible with the newer FPGA used in space equipment.
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