ON Semiconductor Wins “Top 10 DC-DC” for NCP5381 Dual-Edge Controller

BEIJING, China – Sept. 6, 2006 – ON Semiconductor (Nasdaq: ONNN), a leading global supplier of highly efficient power management solutions, today announced that Electronic Products China (EPC) magazine has presented the company with a “Top 10 DC-DC 2006” award for its NCP5381 , the industry’s first asynchronous dual-edge pulse width modulation (PWM) controller. This is the fourth consecutive year that ON Semiconductor has won the award from EPC.

The controller is ideal for applications such as motherboards with Pentium IV processors, VRM modules and graphics cards where fast transient response and advanced power management are vital.

“Winning the award from a leading magazine like Electronic Products China, for the fourth year, underscores ON Semiconductor’s leadership in power management solutions,” said David Chow, vice president of Sales for Asia Pacific for ON Semiconductor. “It pays tribute to our innovative dual-edge high performance solution for advanced CPU power control – which is more cost effective than existing solutions. We are delighted that the NCP5381 is now being embraced by many leading OEM and ODM computing customers throughout the world.”

EPC – one of China’s most authoritative electronics industry trade publications – is a sister publication of Electronic Products magazine published in the U.S. The magazine’s annual “Top 10 DC-DC'” award is given to a range of dc-dc power products (including ICs), following a three-stage judging process. This process includes the publication’s editorial staff, readers’ votes and an expert judging panel. Chip manufacturers’ dc products were evaluated against a number of categories including design innovation, price-performance and technology advancement.

Jointly sponsored by China’s Electronic Industry Publishing House and US-based International Data Group, EPC aims to promote the rapid development of China’s electronics industry by reporting the latest technologies, products and market trends.

Features and BenefitsThe NCP5381 is designed to enable the power management subsystem to respond to users’ activation of high-performance computing functions. It delivers significantly faster response to load transients than existing industry single-edge, latched, clocked, or synchronous modulation products. This allows the subsystem to operate at a lower frequency, with fewer and smaller hold-up capacitors compared to existing modulation approaches. The result is a physically more compact solution that requires fewer external components and is, in turn, more cost effective than existing solutions.

Features of the NCP5381 include:
Dual-edge PWM for fast initial response to transient loading
Patent pending Dynamic Reference Injection
+ 0.5% system voltage accuracy
Remote temperature sensing per VR11
Backwards compatible with VR10
“Lossless” differential inductor current sensing

The NCP5381 augments ON Semiconductor’s existing portfolio of DDR controllers, general purpose controllers, MOSFETs and discrete products for computing applications. The NCP5381MNR2G is available in a 40-pin Pb-free QFN package and priced at US$1.2 per unit in 500-unit quantities.

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