- Intersil Corporation is a leader in the design and manufacture of high performance analog semiconductors. The Company's products address some of the industry's fastest growing markets, such as: flat panel displays, cell phones, other handheld systems, and notebooks. Intersil’s product families address power management and analog signal processing functions. Intersil products include battery management ICs, hot-swap and hot-plug controllers, linear regulators, supervisory ICs, switching DC/DC regulators, power MOSFET drivers, optical storage laser diode drivers, DSL line drivers, video and high performance operational amplifiers, data converters, interface ICs, analog switches and multiplexers, crosspoint switches, voice-over-IP devices, and ICs for military, space, and radiation-hardened applications.