Alpha and Omega Semiconductor Continues to Lead With its Newest High Efficiency Charger Solution

Alpha and Omega Semiconductor
475 OakmeadParkway, Sunnyvale, California 94085 USA
Media Contact: Martha Aparicio
Tel: 408.789.3233
Email: [email protected]
Alpha and Omega Semiconductor Continues to Lead With its Newest High
Efficiency Charger Solution
Lowest on-resistance MOSFET for synchronous rectification
SUNNYVALE, Calif., Aug. 25, 2015 – Alpha and Omega Semiconductor Limited (AOS) (Nasdaq: AOSL), a designer,
developer and global supplier of a broad range of power semiconductors and power ICs, today announced the release of
AO4294, the latest addition to AOS’s family of high efficiency charging solutions. This new device is offered in an easy-touse SO-8 package, which helps manufacturers keep the mounting cost low, while still getting the best efficiency and power
dissipation possible. The AO4294 is an ideal solution for synchronous rectification in high efficiency chargers and adapters
for mobile devices.
AO4294 utilizes AOS’s leading process technology to generate a very low on-resistance when working as the secondary-side
rectifier of an AC/DC converter. The AO4294 is available in the standard SO-8 package, which gives lower-output power
supply designers the convenience of an easy-to-use and cost-effective PCB design. Additionally, this device allows the
possibility of an even smaller circuit form factor, due to extremely low switching losses.
“The ever growing application base for contemporary smart phones is driving the demand for higher battery capacity. At the
same time, the ability to charge up the battery faster and more efficiently is becoming critical for smart phone users. This has
led AOS to work with leading quick charger designers to provide the best performing MOSFETs for secondary-side
rectification to achieve the highest efficiency.” said Lei Feng, Director of Market Development for the MOSFET product line
at AOS. “As one of the best performing parts in the 100V category, the AO4294 will help our customers significantly in
designing efficient charger circuits with higher reliability as the benefit of extremely low on-resistance.”
Device Specification Table
Part Number
RDS(ON)MAX (mOhms)
@ 10V
@ 4.5V
Qg (typ) (nC)
ID @ TA = 25°C (A)
Pricing and Availability
The AO4294 is immediately available in production quantities with a lead-time of 12-14 weeks. The unit price for 1,000
pieces is $0.60.
Tel: 408.830.9742 • Fax: 408.830.9757 •
About AOS
Alpha and Omega Semiconductor Limited, or AOS, is a designer, developer and global supplier of a broad range of power
semiconductors, including a wide portfolio of Power MOSFET, IGBT and Power IC products. AOS has developed extensive
intellectual property and technical knowledge that encompasses the latest advancements in the power semiconductor
industry, which enables us to introduce innovative products to address the increasingly complex power requirements of
advanced electronics. AOS differentiates itself by integrating its Discrete and IC semiconductor process technology, product
design, and advanced packaging know-how to develop high performance power management solutions. AOS's portfolio of
products targets high-volume applications, including portable computers, flat panel TVs, LED lighting, smart phones, battery
packs, consumer and industrial motor controls and power supplies for TVs, computers, servers and telecommunications
equipment. For more information, please visit
Forward Looking Statements
This press release contains forward-looking statements that are based on current expectations, estimates, forecasts and
projections of future performance based on management's judgment, beliefs, current trends, and anticipated product
performance. These forward-looking statements include, without limitation, references to the efficiency and capability of new
products, and the potential to expand into new markets. Forward looking statements involve risks and uncertainties that may
cause actual results to differ materially from those contained in the forward-looking statements. These factors include, but are
not limited to, the actual product performance in volume production, the quality and reliability of the product, our ability to
achieve design wins, the general business and economic conditions, the state of the semiconductor industry, and other risks as
described in the Company's annual report and other filings with the U.S. Securities and Exchange Commission. Although the
Company believes that the expectations reflected in the forward looking statements are reasonable, it cannot guarantee future
results, level of activity, performance, or achievements. You should not place undue reliance on these forward-looking
statements. All information provided in this press release is as of today's date, unless otherwise stated, and AOS undertakes
no duty to update such information, except as required under applicable law.
Tel: 408.830.9742 • Fax: 408.830.9757 •