Intersil's Synchronous Buck Regulator Reduces Filter Requirements and Footprint for 5V/12V Applications

MILPITAS, CA -- (MARKET WIRE) -- Mar 12, 2007 -- Intersil Corporation (NASDAQ: ISIL) today introduced a 2.5A, wide input voltage synchronous buck regulator that greatly reduces noise and EMI filter requirements through programmable switching frequency and external synchronization. The integrated switching MOSFETs and a thermally enhanced compact 4mm x 4mm QFN package make the ISL8502 an ideal fit for 5V/12Vin space-critical applications.

Unlike competitive devices, the ISL8502 features external synchronization capability with master/slave configuration to enable the user to synchronize up to four ICs out of phase and significantly reduce EMI (electromagnetic interference) in the design while also providing multiple outputs from the same input rail. The device's adjustable switching frequency range of 500kHz to 1.2MHz ensures high efficiency and a smaller number of external BOM components. The external compensation provides additional flexibility and enables various choices of passive devices.

Target applications for the ISL8502 include point-of-load applications, set-top boxes, ADSL modems, switches, routers, graphics cards, FPGA power, ASICs and memory power supplies.

About Intersil's Power Management Portfolio

Intersil's high-performance analog ICs provide innovative power management solutions for applications in the computing, communications, peripherals, display, networking, telecommunications, industrial, instrumentation and battery-powered products markets. Intersil is a leading supplier of PWM controller ICs with over two billion units shipped. Intersil offers a broad portfolio of power management ICs, including single and multiple output switching regulators, integrated FET DC/DC controllers, battery management ICs, hot plug controllers and power MOSFET drivers. To learn more, visit Intersil's Power Management page at

Pricing and Availability

The ISL8502 is available now in a 24-lead QFN package and is priced at $2.21 each in 1,000-unit quantities. More information on the ISL8502 is available at,1477,ISL8502,0.html.

Note to editors: To view a high-resolution downloadable photo of the ISL8502, visit Intersil's photo room at:

About Intersil

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 functions and analog signal processing functions. Intersil products include ICs for battery management, hot-swap and hot-plug controllers, linear regulators, power sequencers, supervisory ICs, bridge drivers, PWM controllers, switching DC/DC regulators and 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. For more information about Intersil or to find out how to become a member of our winning team, visit the Company's web site and career page at

Media Contact
Kim Fehrt
Public Relations Manager
Intersil Corporation
(408) 546-3566

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