O2Micro International Limited, together with its subsidiaries, designs, develops, and markets integrated circuits and solutions for power management components and systems in China, Singapore, Taiwan, Malaysia, Korea, the Philippines, Japan, the United States, and internationally. The company offers analog and mixed-signal integrated circuits that manages and provides power for LCD and LED lighting; controls and monitors battery charging and discharging in portable electronic devices and vehicles; performs DC/DC and AC/DC conversion; and provides select and switch functionality between power sources. Its products are primarily used in the consumer electronics, computer, industrial, communication, and automotive markets for applications, including LCD and LED monitors, LCD and LED televisions, notebook and tablet computers, low/zero emission vehicles, mobile phones, power tools, energy efficient technology relating to batteries, LED lighting, and portable electronics devices. The company sells its products through direct sales force, independent sales representatives, or distributors to OEMs, ODMs, and module makers. It also licenses its proprietary intellectual property to third parties; and provides design and engineering support services. The company was incorporated in 1995 and is headquartered in George Town, the Cayman Islands. As of March 3, 2023, O2Micro International Limited was taken private.