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PHOENIX, Ariz. - March 26, 2007 – ON Semiconductor (Nasdaq: ONNN), a leading global supplier of power management solutions, today announced that it has won the 2006 Analog/Mixed Signal IC Editor’s Choice Technology Innovation Award for its NCP1271 controller in China from Electronic Engineering and Product World (EEPW). It is the third consecutive year that EEPW has given ON Semiconductor the award.

“We selected ON Semiconductor’s NCP1271 because it utilizes advanced technologies to provide many features of high-performance power,” said the editorial board of EEPW. “Excellent features such as internal frequency jittering, ramp compensation and timer-based fault detection make this new-generation PWM controller widely applied in power adapters, chargers, set-top boxes, DVDs and DVD-Rs.”

The NCP1271 represents a new generation of the successful 7-pin current mode NCP12xx product series of ON Semiconductor. The controller allows for excellent stand-by power consumption by using its adjustable Soft Skip mode and integrated high voltage startup FET. The proprietary Soft Skip topology dramatically reduces the risk of acoustic noise, allowing the use of inexpensive transformers and capacitors in the clamping network. Internal frequency jittering, ramp compensation, timer-based fault detection and a latch input make this controller an excellent candidate for converters where ruggedness and component cost are key considerations.

"Winning an award from a leading magazine like Electronic Engineering and Product World for the third consecutive year reinforces ON Semiconductor’s leadership in power management solutions,” said Hemen Cheng, ON Semiconductor’s global sales and marketing director of the Automotive and Power Regulation Group. “The NCP1271’s Soft Skip mode with adjustable skip level and external latch enables excellent standby power performance even under no load conditions, providing all features needed for a reliable and effective power supply design.”

About EEPW Analog/Mixed Signal IC Editor’s Choice Awards EEPW is one of China’s leading electronics industry trade publications. It is jointly published by the Institute of Scientific and Technical Information of China, a division of the Ministry of Science & Technology, and the U.S.-based IDG. The magazine’s annual Analog/Mixed Signal IC Editor’s Choice Award aims to recognize analog/mixed IC products which demonstrate breakthroughs in technology and innovation, as well as promising market applications.

About ON Semiconductor With its global logistics network and strong portfolio of power semiconductor devices, ON Semiconductor (Nasdaq: ONNN) is a preferred supplier of power solutions to engineers, purchasing professionals, distributors and contract manufacturers in the power supply, computer, consumer, portable/wireless, automotive and industrial markets. For more information, please visit ON Semiconductor’s website at www.onsemi.com.

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ON Semiconductor and the ON Semiconductor logo are registered trademarks of Semiconductor Components Industries, LLC. All other brand and product names appearing in this document are registered trademarks or trademarks of their respective holders. Although the company references its website in this news release, such information on the website is not to be incorporated herein.

About onsemi

onsemi (Nasdaq: ON) is driving disruptive innovations to help build a better future. With a focus on automotive and industrial end-markets, the company is accelerating change in megatrends such as vehicle electrification and safety, sustainable energy grids, industrial automation, and 5G and cloud infrastructure. With a highly differentiated and innovative product portfolio, onsemi creates intelligent power and sensing technologies that solve the world’s most complex challenges and leads the way in creating a safer, cleaner, and smarter world.

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onsemi and the onsemi logo are trademarks of Semiconductor Components Industries, LLC. All other brand and product names appearing in this document are registered trademarks or trademarks of their respective holders. Although the Company references its website in this news release, information on the website is not to be incorporated herein.

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