Significant Power Management Patent Granted to O2Micro(R)

Tuesday December 27, 6:14 pm ET


SANTA CLARA, Calif. & GEORGE TOWN, Grand Cayman--(BUSINESS WIRE)--Dec. 27, 2005--O2Micro® International Limited (NASDAQ:OIIM - News), a leading supplier of innovative power management, and security components and systems for the Computer, Consumer, Industrial, and Communications markets, was granted 37 claims under United States patent number 6,965,221 for its Direct Current to Direct Current (DC/DC) converter Controller.

This patent describes an IC design concept called "Constant Ripple Current" technology that brings the highest possible efficiency to portable electronic devices under light and heavy load conditions. This innovation reduces design time and enables cost-effective power supplies for today's microprocessor and peripheral chips. Portable electronic devices include notebook computer, cell phone, PDA (Personal Digital Assistant), PMP (Portable Media Player) and MP3 player applications.


Alex Hartular, vice president of O2Micro's Intelligent Power business unit, said, "This significant new technology enables highest efficiency, lower cost systems and forms the basis for all of O2Micro's DC/DC Controller product offerings."


About O2Micro


Founded in April 1995, O2Micro develops and markets innovative power management, and security components and systems for the Computer, Consumer, Industrial, and Communications markets. Products include Intelligent Lighting, Battery Management, Power Management, SmartCardBus® and Security products, such as VPN/Firewall system solutions.


O2Micro International maintains an extensive portfolio of intellectual property with 3,348 patent claims granted, and over 5,000 more pending. The company maintains offices worldwide. Additional company and product information can be found on the company website at www.o2micro.com.


O2Micro, the O2Micro logo, SmartCardBus and combinations thereof are registered trademarks of O2Micro.


Statements made in this release that are not historical, including statements regarding O2Micro's or management's intentions, hopes, beliefs, expectations, representations, projections, plans or predictions of the future, are forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. Such statements involve risks and uncertainties that may cause actual results to differ materially from those set forth in these statements. Factors that could cause actual results to differ materially include risks and uncertainties such as reduced demand for products of electronic equipment manufacturers which include O2Micro's products due to adverse economic conditions in general or specifically affecting O2Micro's markets, technical difficulties and delays in the developments process, and errors in the products. You are also referred to the Form F-1 in connection with the company's initial public offering in August 2000, Form F-3 in connection with the company's public offering in November 2001, and the annual reports on Form 20-F, which identify important risk factors that could cause actual results to differ from those contained in the forward-looking statements. The company assumes no obligation to update or revise any forward-looking information, whether as a result of new information, future events or otherwise.




Gil Goodrich, 408-987-5920 ext. 8013




Source: O2Micro International Limited