updated 8/27/2010 4:53:24 AM ET 2010-08-27T08:53:24

SUNNYVALE, Calif., Aug. 26, 2010 (GLOBE NEWSWIRE) -- Alpha and Omega Semiconductor Limited ( AOS ) (Nasdaq:AOSL) announced the release of AOZ1960, a high-efficiency multi-string DC-DC boost white LED driver. The new product features an integrated 55V low on-resistance boost switch, a wide dimming range, and extensive protection features. It provides an ideal LCD backlighting solution for the latest generation of notebook computers.

A photo accompanying this release is available at http://www.globenewswire.com/newsroom/prs/?pkgid=7922

The internal 55V boost power switch enables customers to drive up to 15 LEDs in series per string, allowing for bigger and brighter displays. Additionally the boost power switch features a low on-resistance of 140mW, reducing DC-DC conversion switching losses and delivering efficiencies over 90% to maximize battery life.

The AOZ1960 provides both analog dimming and digital PWM dimming with 256 steps of dimming resolution. The LED current can be easily programmed with an external resistor, and the internal current regulators ensure the six parallel strings of LEDs have optimal current matching.

The new device offers extensive protection features such as cycle-by-cycle current limit, over-voltage protection, and open/short LED detection. The AOZ1960 also includes an integrated low on-resistance input switch that protects against catastrophic output short-circuit or overload fault conditions.

"Traditional boost regulators cannot protect against output short circuit conditions. To improve system reliability, designers often need to use an external MOSFET or fuse at the input of boost LED driver. The AOZ1960 solves this design challenge by integrating a low on-resistance input protection switch. This feature significantly enhances system robustness, simplifies designs, and reduces component count," said Song Qu, Director of Power IC Marketing at AOS.

Pricing and Availability

The AOZ1960 is available immediately. The unit price for 1,000 pieces is US$1.48. The product is housed in a 7mm x 4mm 24-pin DFN package.

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 and Power IC products. AOS seeks to differentiate itself by integrating its expertise in device physics, process technology, design and advanced packaging to optimize product performance and cost, and its product portfolio is designed to meet the ever increasing power efficiency requirements in high volume applications, including portable computers, flat panel TVs, battery packs, portable media players and power supplies. For more information, please visit www.aosmd.com.

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, anticipated product performance. These forward-looking statements include, without limitation, references to the efficiency and capability of new products. 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 semiconductor industry, and other risks as described in the Company's SEC filings, including its registration statement on Form F-1 filed on March 31, 2010, as amended and supplemented, and other filings with the SEC. 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.

The photo is also available via AP PhotoExpress.

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