News & Events
Intersil Unveils Two New Pulse-width Modulation Controllers for Desktop PCs

— Endura™ power systems drive power in Intel® Pentium® III-based PCs

Irvine, CA, June 21, 2001 – Intersil (NASDAQ: ISIL), a leading provider of power management solutions for PCs, file servers and portable information appliances, announced today the release of two new Endura pulse-width modulation (PWM) linear power system controllers. The devices provide power control and protection for DC/DC converters that are specifically designed and optimized to regulate power to the central processing unit (CPU) in Intel® Pentium® III-based, voltage regulation module (VRM) 8.5-compliant desktop PCs.

These circuits are the first to integrate power sequencing functions required by VRM 8.5, thus reducing converter bill-of-materials (BOM) cost compared to competing solutions requiring extensive external components to perform this function. Intersil’s Endura ISL6523 is a dual PWM and dual linear controller and the ISL6524 is a single PWM, triple linear controller. Both highly integrated devices provide power control and protection for four output voltages in VRM 8.5-compliant, high-performance microprocessor and computer applications. VRM 8.5 is an Intel specification for the latest Pentium III processors. The specification governs the regulation of power delivered to the processor.

"These innovative latest additions to the Endura power management family leverage our design expertise to expand our leadership in the DC/DC power conversion market," said Rick Furtney, vice president and general manager of Intersil’s Power Management product line. "As power requirements for PCs and information appliances grow in complexity, systems designers are required to carefully consider voltage requirements and power efficiency. Intersil continues to lead the industry by delivering highly efficient power management products that meet the challenges defined by today’s advanced computing devices."

Technical Information
Intersil’s latest Endura power system controllers provide four regulated voltages, one each to the microprocessor core, AGTL+Bis, AGP Bus Power and the north/south bridge core. They control the power up sequencing of these voltages in accordance with VRM 8.5 requirements. The devices’ linear regulator drives are compatible with both MOSFET and bipolar series pass transistors. Intersil’s innovative rDS(ON) sensing topology enhances efficiency, improves transient response, and reduces overall bill-of-materials cost by eliminating the need for an external current sense resistor. Fast PWM converter transient response delivers a high-bandwidth error amplifier and a full zero percent to one hundred percent duty ratio.

Pricing, Packaging and Availability
The ISL6523 and ISL6524 are both currently available in a 28-lead SOIC package. Both devices are priced at $2.64 in 1,000 piece quantities or $2.09 in 10,000 piece quantities. For more information, visit Intersil’s Web site at www.intersil.com/design/powermanagement or call 1-888-INTERSIL extension 8015.

About Intersil Power Management Technology
The Intersil Endura product family consists of leading power management solutions for desktop PCs, workstations, Internet appliances, RAID systems and high-availability servers. The Endura family includes high-efficiency solutions that are used in portable PCs and mobile information appliances as well as residential gateway products. Endura devices address the increasing demands for power, connectivity and availability of higher performing information appliances, supporting current and next generation microprocessors, information appliances and the Internet infrastructure.

About Intersil
Intersil is a leading supplier of semiconductors, reference designs and software for wireless access and communications analog markets. Intersil applies analog, mixed-signal and radio frequency (RF) expertise to products that enable wireless access to broadband media; provide reliable power management for PCs, file servers and portable information appliances; and convert analog and digital signals in cellular and Internet infrastructure. For more information about Intersil, visit the company's Internet homepage at www.intersil.com

This press release contains information relating to certain projections and business trends concerning the Power Management market that are forward-looking statements as defined in Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934. Such forward-looking statements are based upon management’s current expectations, estimates, beliefs, assumptions, and projections about our business and industry. Words such as "anticipates," "expects," "intends," "plans," "believes," "seeks," "estimates," "may," "will" and variations of these words or similar expressions are intended to identify forward-looking statements. In addition, any statements that refer to expectations, projections or other characterizations of future events or circumstances, including any underlying assumptions, are forward-looking statements. Furthermore, any forward-looking statements and projections made by others in this press release are not adopted by Intersil Corporation ("Intersil") and Intersil is not responsible for the forward-looking statements and projections of others. These forward-looking statements are not guarantees of future performance and are subject to certain risks, uncertainties and assumptions that are difficult to predict. Therefore, our actual results could differ materially and adversely from those expressed in any forward-looking statements as a result of various risk factors. Important risk factors that may cause such material differences for Intersil in connection with the power management market include, but are not limited to: the rate at which consumers adopt small handheld Internet appliances and portable computing devices; the rate of purchases of PC’s and file servers; the rate at which our present and future customers and end-users adopt Intersil’s power management technologies and products; the timing, rescheduling or cancellation of significant customer orders; the loss of a key customer; the qualification, availability and pricing of competing products and technologies and the resulting effects on sales and pricing of our products; silicon wafer pricing and the availability of foundry and assembly capacity and raw materials; intellectual property disputes; as well as other risk factors detailed from time to time in Intersil’s filings with the U.S. Securities & Exchange Commission ("SEC") which you may obtain for free at the SEC’s Web site www.sec.gov. These forward-looking statements are made only as of the date of this press release and Intersil undertakes no obligation to update or revise these forward-looking statements.

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Endura is a trademark of Intersil Americas Inc.

Intel and Pentium are registered trademarks of Intel Corporation

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