Microsemi is a designer, manufacturer, and marketer of analog, mixed-signal, and discrete semiconductors. The company's semiconductors manage and regulate power, protect against transient voltage spikes, and transmit, receive, and amplify signals.

Its products include individual components as well as complete circuit solutions that enhance customer designs by providing battery optimization, reducing size, or protecting circuits. Markets include mobile connectivity, computer/peripherals, telecommunications, medical, industrial/commercial, space/satellite, and military.