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Intersil Corporation


Intersil, a Renesas company, is a leader in the design and manufacture of high-performance analog, mixed-signal and power management semiconductors. Intersil customers build the products and applications of the future in the industrial, infrastructure, mobile computing, automotive and aerospace markets. Our advances in power management help customers improve efficiency, power density and battery life.

A Legacy of Innovation

Intersil has leveraged a deep portfolio of intellectual property, a history of design and process innovation and a system-level view to deliver unique benefits for the latest electronic systems. Intersil’s customers have been recognized as innovators in their chosen markets, and our IC solutions formed the building blocks of the latest devices adding intelligence, mobility and true energy efficiency.

We were formed in August 1999 when we acquired the semiconductor business of Harris Corporation and began operating as Intersil Corporation. That semiconductor business included product portfolios and intellectual property dating back to 1967 when semiconductor companies were just emerging in Silicon Valley. That history of leadership continued as the company evolved, and in early 2000, Intersil went public in what was then the largest semiconductor IPO in US history.

Since then, the company has developed market leadership in power management and precision analog technology for many of the most rigorous applications in the computing, consumer and industrial markets. The company supplies a full range of power IC solutions including battery management, computing power, display power, regulators and controllers and power modules; as well as precision analog components such as amplifiers and buffers, proximity and light sensors, data converters, timing products, optoelectronics and interface products. As a major supplier to the military and aerospace industries, Intersil’s product development methodologies reflect experience designing products to meet the highest standards for reliability and performance in challenging environments.

Product Catalog

Technical Articles

How to Protect Buck Regulators from Overcurrent Damage (Power and Power Management IC) Overcurrent protection (OCP) is essential to protect switching regulators from damage by excessive current. This white paper reviews several popular OCP schemes, and explains how these schemes work... (View Full Article)
Putting Safety into Li-ion Battery Packs (Power and Power Management IC) The power FET is an essential safety function in a battery management system (BMS). The main purpose of the power FET is to isolate the battery pack from either a load or a charger in errant... (View Full Article)