Detailed company information
Alpha and Omega Semiconductor Limited (AOSL) is a global enterprise that designs, develops, and supplies crucial power semiconductor solutions for a wide range of applications, including computing, consumer electronics, communication, and industrial sectors. The company operates internationally, serving markets in Hong Kong, China, South Korea, and the United States. Among its core offerings are power discrete components, such as various types of MOSFETs (e.g., metal-oxide-semiconductor field-effect transistors, SRFETs, XSFET, and high-voltage variants, including ESD-protected models) and insulated gate bipolar transistors (IGBTs). These components are integral to a vast array of devices, spanning consumer electronics like smartphones, laptops, TVs, and gaming consoles; computing infrastructure including desktops, servers, and data centers; communication equipment such as base stations; and diverse industrial applications like motor control, power tools, electric vehicles, white goods, UPS systems, solar inverters, and industrial welding. AOSL also provides power integrated circuits (ICs), which are designed to efficiently manage and regulate power within electronic systems. These ICs are critical for controlling voltage levels and current flow, finding applications in everything from flat-panel displays, notebooks, and graphics cards to servers, DVD/Blu-Ray players, set-top boxes, and networking hardware. The product portfolio further extends to specialized components like aMOS5 MOSFETs, optimized for high-demand applications such as fast chargers, AC adapters, PC power supplies, servers, industrial power, telecom, and data centers. Additionally, it supplies Transient Voltage Suppressors (TVS) for safeguarding electronic devices like laptops and televisions against power surges. Other innovative solutions include EZBuck regulators, SOA MOSFETs for hot-swappable systems, RigidCSP for advanced battery management, and Type-C power delivery protection switches. Established in 2000, the company maintains its headquarters in Sunnyvale, California.
Last Updated: Sep 2026
Earnings Transcript for 2026 - Q4Released: Aug 12, 2026
Earnings Transcript for 2026 - Q3Released: May 07, 2026
Earnings Transcript for 2026 - Q2Released: Feb 05, 2026
Earnings Transcript for 2026 - Q1Released: Nov 05, 2025
Earnings Transcript for 2025 - Q4Released: Aug 06, 2025
Earnings Transcript for 2025 - Q3Released: May 07, 2025
Earnings Transcript for 2025 - Q2Released: Feb 05, 2025
Earnings Transcript for 2025 - Q1Released: Nov 04, 2024
Earnings Transcript for 2024 - Q4Released: Aug 07, 2024
Earnings Transcript for 2024 - Q3Released: May 07, 2024
Earnings Transcript for 2024 - Q2Released: Feb 06, 2024
Earnings Transcript for 2024 - Q1Released: Nov 06, 2023
Earnings Transcript for 2023 - Q4Released: Aug 09, 2023
Earnings Transcript for 2023 - Q3Released: May 04, 2023
Earnings Transcript for 2023 - Q2Released: Feb 06, 2023
Earnings Transcript for 2023 - Q1Released: Nov 04, 2022
Earnings Transcript for 2022 - Q4Released: Aug 10, 2022
Earnings Transcript for 2022 - Q3Released: May 05, 2022
Earnings Transcript for 2022 - Q2Released: Feb 07, 2022
Earnings Transcript for 2022 - Q1Released: Nov 04, 2021
Earnings Transcript for 2021 - Q4Released: Aug 11, 2021
Earnings Transcript for 2021 - Q3Released: May 06, 2021
Earnings Transcript for 2021 - Q2Released: Feb 04, 2021
Earnings Transcript for 2021 - Q1Released: Nov 05, 2020