Photo Release -- Alpha and Omega Semiconductor Debuts Highly Integrated Power ICs for Next Generation Computing Platforms

Photo Release -- Alpha and Omega Semiconductor Debuts Highly Integrated Power
ICs for Next Generation Computing Platforms

Proprietary COT Architecture Enables Low Ripple Operation With Small Ceramic
Output Capacitors, Offers Ultra-Fast Transient Response

SUNNYVALE, Calif., Oct. 24, 2012 (GLOBE NEWSWIRE) -- Alpha and Omega
Semiconductor Limited (AOS) (Nasdaq:AOSL), a designer, developer and global
supplier of a broad range of power semiconductors, today announced the release
of AOZ1232-01 and AOZ1233-01, high efficiency, easy-to-use synchronous EZBuck™
regulators featuring a proprietary Constant On-Time (COT) control architecture
that enables smaller solutions and simplifies designs. The new products
provide an optimal solution for next generation computing chipsets that are
pushing the limits of DC/DC converter size. The AOZ1232-01 and AOZ1233-01 are
ideally suited for the latest notebook PCs, ultrabooks, graphics cards,
servers, data storage systems, and high-end smart TVs.


A photo accompanying this release is available at

As next generation digital chipsets offer higher performance while reducing
their power consumption; system designers are utilizing this benefit by
shrinking printed circuit board (pcb) areas and total system size. Power
supplies that were traditionally using DC/DC controller ICs with external
MOSFETs are now requiring more integrated solutions to fit within the smaller
pcb area. AOS's low on-resistance MOSFET technology combined with advanced
packaging technology enables high performance DC/DC regulators in small
package sizes. The AOZ1232-01 and AOZ1233-01 provide 6A and 8A of continuous
output current, respectively, in a 5x5mm QFN package, while operating over a
wide input voltage range of 2.7V to 28V. The proprietary COT architecture
provides ultra-fast load transient response performance and allows stable and
low voltage ripple operation with small size ceramic capacitors. Competing
solutions require several external components when using all ceramic
capacitors and need to generate a larger output ripple voltage to stabilize
the circuit. Additionally, the input feed forward feature of AOZ123x provides
a constant switching frequency over the entire input voltage range – which
further alleviates noise concerns for designers.

"The AOZ1232-01 and AOZ1233-01 were designed for high performance and ease of
use for next generation computing platforms. AOS's proprietary COT control
architecture in conjunction with its scalable MOSFET and packaging
technologies helps our customers meet their goal of developing efficient and
high power density solutions with a fast time to market. This initial product
offering is the first in a whole family of new solutions to come." said Daniel
Chang, Vice President of Power IC at AOS.

Pricing and Availability

The AOZ1232-01 and AOZ1233-01 are immediately available in production
quantities. The unit price for 1,000 pieces is $3.23 and $3.75, respectively.

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. 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.

CONTACT: Martha Aparicio

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