New Dual-Edge PWM Controller Moves ON Semiconductor into VR11 Market


Innovation will facilitate the industry-wide development of dc-dc power supplies with highly efficient ¡°active mode¡± performance for computing and consumer electronics applications

PHOENIX, Ariz. ¨C Oct. 3, 2005 ¨C A global supplier of power management products, ON Semiconductor (Nasdaq: ONNN) today announced the successful development of working silicon for its new dual-edge pulse width modulation (PWM) controller and delivery of engineering samples to leading VR11 power supply licensees.

¡°Customer feedback has been positive,¡± said Bill Schromm, vice president of ON Semiconductor¡¯s High Performance Analog Products Group. ¡°What we are hearing is that our new dual-edge PWM solution provides leadership cost versus performance trade-off points.¡±

The computing and digital consumer electronics markets continues to be driven by demand for expanded features, higher performance and increased wireless connectivity. ON Semiconductor¡¯s new dc-dc switching controller specifically addresses ¡®active power¡¯ applications with highly regulated, low voltage power supplies that require high conversion efficiency to meet stringent VR11 specifications.

¡°ON Semiconductor¡¯s successful development of this dc-dc controller is expected to enable significant enhancements to the power subsystem for high performance CPU motherboards,¡± said Larry Sims, senior vice president and general manager of ON Semiconductor¡¯s Analog Products Group. ¡°This product is scheduled to be released to market by the end of the year and will augment the company¡¯s existing portfolio of DDR controllers, general purpose controllers, MOSFETs and discrete products for computing applications.¡±

Dual-Edge Technology

ON Semiconductor¡¯s dual-edge PWM technology is the first in the industry for computing CPU power.

Delivering significantly faster response to load transients than existing industry solutions, the company¡¯s dual-edge PWM technique will enable the power management subsystem to respond to users¡¯ activation of high-performance computing functions. Existing single-edge industry solutions require operation at higher-than-optimal frequencies, or use of substantial capacitive hold-up circuits. These options require a more complicated, and physically larger, power management subsystem than ON Semiconductor¡¯s new dual-edge PWM technique. By enabling simultaneous switching of all phases in a multiphase power waveform, ON Semiconductor¡¯s new solution provides faster response compared to the industry¡¯s standard single-edge control. This improved response enables the power management subsystem to operate at a lower frequency and with fewer hold-up capacitors, versus existing leading-edge or trailing-edge approaches.

Features

¡ñ Dual-Edge PWM for fast initial response to transient loading

¡ñ Patent pending Dynamic Reference Injection

¡ñ + 0.5% system voltage accuracy

¡ñ Remote temperature sensing per VR11

¡ñ Backwards compatible with VR10

¡ñ ¡°Lossless¡± differential inductor current sensing

Target Applications

¡ñ Pentium IV processors

¡ñ VRM modules

¡ñ Graphics cards

¡ñ Low voltage, high current power supplies

For additional information visit www.onsemi.com or contact Michael Stapleton at michael.stapleton@onsemi.com.

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 computer, cell phone, portable devices, automotive and industrial markets. For more information, please visit ON Semiconductor¡¯s website at www.onsemi.com.

# # #

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.

This news release includes ¡°forward-looking statements¡± as that term is defined in Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934. All statements other than statements of historical fact are statements that could be deemed forward-looking statements and are often characterized by the use of words such
as ¡°believes,¡± ¡°expects,¡± ¡°estimates,¡± ¡°projects,¡± ¡°may,¡± ¡°will,¡± ¡°intends,¡± ¡°plans,¡± or ¡°anticipates,¡± or by discussions of strategy, plans or intentions. In this news release, forward-looking information relates to the target date for the release of this technology to the market, projected customer benefits for the new technology, and similar matters. All forward-looking statements in this news release are made based on management's current expectations and estimates, which involve risks, uncertainties and other factors that could cause results to differ materially from those expressed in forward-looking statements. Among these factors are changes in overall economic conditions, the cyclical nature of the semiconductor industry, changes in demand for our products, changes in inventories at our customers and distributors, technological and product development risks, availability of raw materials, competitors' actions, pricing and gross margin pressures, loss of key customers, order cancellations or reduced bookings, changes in manufacturing yields, control of costs and expenses, significant litigation, risks associated with acquisitions and dispositions, risks associated with our substantial leverage and restrictive covenants in our debt agreements, risks associated with our international operations, the threat or occurrence of international armed conflict and terrorist activities both in the United States and internationally, risks and costs associated with increased and new regulation of corporate governance and disclosure standards (including pursuant to Section 404 of the Sarbanes-Oxley Act of 2002), and risks involving environmental or other governmental regulation. Additional factors that could affect the company's future operating results are described in our Form 10-K for the year ended December 31, 2004 under the caption ¡°Trends, Risks and Uncertainties¡± in the MD&A section, and other factors are described from time to time in our subsequent SEC filings. Readers are cautioned not to place undue reliance on forward-looking statements. We assume no obligation to update such information.

Related

All Topics