O2Micro Extends Free Dimming(TM) Technology For The Global LED Lighting Market With New Built-In Night Light Driver

GEORGE TOWN, Grand Cayman, Aug. 13, 2012 (GLOBE NEWSWIRE) -- O 2Micro ® International Limited (Nasdaq:OIIM), a global leader in the design, development and marketing of high-performance integrated circuits and solutions, today extended the Company's Free Dimming TM technology and Lighting product portfolio with the introduction of the OZ8022M High Brightness Offline LED Driver Controller.

O 2Micro's patented Free Dimming technology enables LED bulbs to dim using any on/off switch, thus eliminating cost, installation and compatibility problems associated with traditional incandescent dimmers. O 2Micro's patented Free Dimming technology works with any on/off switch, including wall toggles, paddle switches, pull cords, rotary switches and other types of on/off switches commonly found on walls, extension cords and table/desk lamps.

According to the National Electrical Manufacturers Association (NEMA), there are over 4.4 billion medium, screw-based light sockets in the US. Yet, according to industry estimates, only 150 million incandescent dimmers represent an enormous, untapped market opportunity for O 2Micro's Free Dimming technology, which is inherently simple and works with any non-dimming on/off switch.

About the OZ8022M High Brightness Offline LED Driver Controller

Similar to O 2Micro's OZ8022A and OZ8022B Free Dimming LED driver controllers, OZ8022M High Brightness Offline LED Driver Controller provides three-step dimming using any ordinary non-dimming on/off switch. But instead of dimming from 100% to 60% to 20% with each flick of the wall switch, the OZ8022M dims from 100% to 40% to 2.5%, a low level night light mode. Consumers gain a built-in, free night-light while OEMs gain a value-added feature in a market sorely lacking in differentiation.

The OZ8022M supports universal 85V to 265V operation, enabling one LED bulb to address the global marketplace. High efficiency greater than 89% reduces energy consumption and thermal management complexity. Integrated over-temperature, over-voltage, cycle-by-cycle current limiting, and LED short circuit protection provides safe and reliable operation. Excellent LED current regulation ensures consistent lumen output, regardless of varying line input conditions.

Product Availability and Additional Information

The OZ8022M is available in a SOT-23-6 package and is pin compatible with the OZ8022A and OZ8022B. The OZ8022M is in high volume production now. Samples and evaluation boards are available now for qualified customers.

For additional information, contact O 2Micro sales representatives via our website at www.o2micro.com .

About O 2Micro

Founded in April 1995, O 2Micro develops and markets innovative power management and e-commerce components for the Computer, Consumer, Industrial, and Communications markets. Products include Intelligent Lighting, Battery Management, and Power Management.

O 2Micro International maintains an extensive portfolio of intellectual property with 20,690 patent claims granted, and over 21,000 more pending. The company maintains offices worldwide. Additional company and product information can be found on the company website at www.o2micro.com .

O 2Micro, the O 2Micro logo, and combinations thereof are registered trademarks of O 2Micro. Free Dimming and combinations thereof are trademarks of O 2Micro. All other trademarks or registered trademarks are the property of their respective owners.

The O2Micro International Limited logo is available at http://www.globenewswire.com/newsroom/prs/?pkgid=6567

Statements made in this release that are not historical, including statements regarding O 2Micro'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 O 2Micro's products due to adverse economic conditions in general or specifically affecting O 2Micro'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.
CONTACT: Scott L. Anderson         Director of Investor Relations, O2Micro         Phone: 408.987.5920, x8888         Email: scott.anderson@o2micro.com

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