International Rectifier Introduces Radiation-Hardened, Low-Voltage DC-DC Converters with Built-In EMI Filtering

EL SEGUNDO, Calif.—(BUSINESS WIRE)—Jan. 12, 2006— International Rectifier IR(r) (NYSE: IRF), a world leader in power management technology, today introduced the LS Series of radiation-hardened (RAD-Hard(tm)) low-voltage, single- and dual-output DC-DC converter modules. The modules, which include an internal MIL-STD-461C CE03-compliant EMI filter, deliver isolated output voltages from 1.5V to 15.0V with typical efficiency ratings up to 83 percent, at least 5 percent more than the closest competing device.

"Supply voltages for FPGA, ASIC and DSP circuits continue to decrease from 3.3 volts to 2.0 volts and lower. Our LS Series converters offer proven and efficient, off-the-shelf solutions that include EMI suppression," said Rick Furtney, vice president of International Rectifier's HiRel Sector Business Unit.

By including the EMI filter, the new modules simplify power management circuits used in satellite applications, including low Earth orbit (LEO), middle Earth orbit (MEO), geostationary Earth orbit (GEO) as well as in scientific missions that have long life requirements of up to 15 years or radiation design requirements of 100Krads.

The low-voltage converters are made with a proven, patented design using discrete pulse width modulation circuitry and known radiation performance components de-rated per MIL-STD-975. The devices are characterized with total ionizing dose (TID) of greater than 100K Rad(Si), and single event effect (SEE) linear energy transfer (LET) of heavy ions greater than 82 MeV.cm(2)/mg in accordance with MIL-STD-883.

The fixed-frequency, single-ended forward converters switch at 575kHz. Other features include 18V to 40V input range, magnetically coupled feedback to insure optimum cross-regulation when the loads are unbalanced, adjustable output voltage, and a device weight of less than 85 grams.

More information on the new LS HiRel modules can be found on the International Rectifier Web site:

http://www.irf.com/whats-new/nr060112.html

Pricing and Availability

Pricing begins at US $6500 each in production-unit quantity. Consult your local sales representative for sample availability and pricing. Data sheets and a radiation test report is available on the International Rectifier Web site, www.irf.com. Stress, thermal and worst case analysis reports for the modules are available upon request. These devices are subject to U.S. export control laws and regulations.

About International Rectifier

International Rectifier (NYSE: IRF) is a world leader in power management technology. IR's analog and mixed signal ICs, advanced circuit devices, integrated power systems and components enable high performance computing and reduce energy waste from motors, the world's single largest consumer of electricity. Leading manufacturers of computers, energy efficient appliances, lighting, automobiles, satellites, aircraft and defense systems rely on IR's power management benchmarks to power their next generation products. For more information, go to www.irf.com.

Trademark Notice

IR(r) is a registered trademark of International Rectifier Corporation. RAD-Hard(tm) is a trademark of International Rectifier Corporation.



Contact:
International Rectifier
Wayne Yoshida, 310-252-7726

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