IR`s IR1168 SmartRectifier IC Named as a Finalist in EDN China Innovation Awards 2009

EL SEGUNDO, Calif.--(Business Wire)--
International Rectifier, IR® (NYSE:IRF), a world leader in power management
technology, today announced the IR1168 SmartRectifier IC for AC-DC power
converters for high-end LCD TVs has been selected as a finalist in the 2009 EDN
China Innovation Awards.

The 200V dual smart secondary-side rectifier driver IC is designed to drive two
N-Channel power MOSFETs used as synchronous rectifiers (SR) in resonant
half-bridge topologies. In contrast to traditional current transformer SR
methods, the IR1168 accurately determines turn-on and turn-off based on MOSFET
drain sensing voltage in close proximity to zero current transition, eliminating
the need for additional components to simplify design.

Co-designed with IR`s DirectFET® MOSFETs, which feature IR`s latest Trench
silicon and packaging technology, the IR1168-based solution delivers an
efficiency improvement of 1.5 percent for a standard 240W LCD TV switch mode
power supply (SMPS) and a reduction of rectifier device temperature of 25°C
while shrinking board size by two thirds.

"Developing innovative, energy-efficient products such as the IR1168
SmartRectifier IC are at the heart of IR`s mission, and we thank the editors of
EDN China for recognizing the advancements being made at the leading edge of
power management electronics," said Paul Rolls, IR`s senior vice president,
Worldwide Sales.

The IR1168, featuring IR`s proprietary high-voltage IC technology, supports
burst mode operation to deliver efficiency benefits even at light loads.
Ruggedness and noise immunity are accomplished using an advanced blanking scheme
and double-pulse suppression that allows reliable operation in fixed and
variable frequency applications. Other key features include maximum 500kHz
switching frequency, anti-bounce logic and UVLO protection, 4A peak turn-off
gate drive current, micropower start-up and ultra low quiescent current, 10.7V
gate drive clamp, 70ns turn-off propagation delay and a wide Vcc operating range
from 8.6V to 18V.

A panel of industrial experts and EDN China's technical editors selected the
finalists in this year`s Innovation Award competition. Readers will select the
winners through an online ballot available at EDN China`s website at
http://award.ednchina.com/ until September 21, 2009. Finalists will be honored
and winners announced at EDN China's award presentation ceremony which will take
place in November in Shenzhen, China.

EDN, the premier electronics design magazine, is part of Reed Electronics Group,
the electronics industry`s largest global information provider. For more
information, go to www.edn.com.

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

SmartRectifier, DirectFET and IR are trademarks of International Rectifier
Corporation. All other product names noted herein may be trademarks of their
respective holders.

International Rectifier
Sian Cummins, 310-252-7148
scummin1@irf.com

Copyright Business Wire 2009