News & Events
Intersil Introduces Complete Power Supply System to Support Next-Generation Mobile Processors

MILPITAS, CA, October 3, 2005 – Intersil Corporation (NASDAQ: ISIL), a world leader in the design and manufacture of high-performance analog solutions, today introduced the ISL6260B multiphase core regulator and ISL6262 two-phase core regulator with integrated drivers. The ISL6260B is a multiphase regulator that uses external drivers and can be programmed as 1-, 2-, or 3-phase. When combined with Intersil’s ISL6208 gate driver, the ISL6260B forms the basis for a portable power supply system to power Intel’s latest CPU (central processing unit) family for the notebook market, enabling phase-dropping at intermediate load levels. Phase-dropping allows the device to be configured to alternate phases (2-phase to 1-phase, or 3-phase to 2-phase). The dynamic phase add-drop feature together with diode emulation mode at light load on the ISL6260B and ISL6262 maximize the efficiency over a wide load range to improve battery life.

The modulator at the heart of this power system is created using Intersil’s patented R3™ (Robust Ripple Regulator) technology. Compared with traditional multiphase buck regulators, Intersil’s R3-based converters have faster transient response due to the R3 modulator commanding variable switching frequency during load transients.

“Intersil’s ISL6260B and ISL6262 offer customers a new level of flexibility for their high-current CPU core power needs, “said Majid Kafi, director of Intersil’s Notebook Power group. “These devices offer flexibility in the types of CPUs installed and number of phases that can be implemented to deliver the core power to meet CPU requirements. The ISL6260B and ISL6262 create a complete power controller solution with both internal and external drivers, providing core power covering the entire spectrum of next-generation Intel CPUs post Centrino®.”

Faster Transient Response, Improved Efficiency
Intersil’s ISL6260B multiphase core regulator and ISL6262 two-phase integrated driver core regulator provide 0.5 percent system accuracy over the entire temperature range, which allows wider tolerance of inductors for platforms using DCR (DC resistance) current sensing. To boost battery life, the phase-dropping capability of these devices meets Intel’s power status indicator (PSI) requirement. They also support a deeper sleep function and maximize the efficiency by automatically enabling diode emulation and frequency stretching.

At heavy load operation in the active mode, the regulators command continuous conduction mode (CCM) operation. When the CPU enters deeper sleep mode, the ISL6260B and ISL6262 enable diode emulation to maximize efficiency during the light load. Both devices provide excellent efficiency during full and light loads.

The small package size of the ISL6260B and ISL6262 allows designers to place the devices close to the CPU on the board, simplifying PCB (printed circuit board) layout and increasing board reliability. The devices use two interleaved channels to double the output voltage ripple frequency and reduce output voltage ripple amplitude with fewer components, providing the customer with cost and space savings in their power management designs.

Key Features

• Precision two-phase integrated driver (ISL6262) and multiphase (ISL6260B) core voltage regulation with external drivers programmable to 1-, 2-, or 3-phase
• 0.5 percent system accuracy over temperature
• Enhanced loadline accuracy
• 7-bit VID (voltage identification) input
• 0.300V to 1.500V in 12.5mV steps
• Multiple current sensing schemes supported
  • Lossless inductor DCR current sensing
  • Precision resistive current sensing
• Thermal monitor
• User-programmable switching frequency

Target Applications

• Notebook computers systems
• LCD (liquid crystal display) PC systems
• SAN (storage-area network) or NAS (network-attached storage) systems
• Point-of-Sale (POS) terminals
• Blade servers

About Intersil’s Power Management Portfolio
Intersil is a recognized global leader in power management solutions, offering a broad portfolio of products that simplify a variety of power designs. Intersil’s family of power management ICs ranges from building blocks such as charge pumps, to highly-integrated, multiple-output and multiphase PWMs, to quad-voltage hot-swap controllers. As a leading supplier of PWM controller ICs with over 1 billion units shipped, Intersil addresses a broad range of power management needs for applications that include computing, communications, peripherals, display, networking, telecommunications, industrial, instrumentation and battery-powered products. To learn more, visit Intersil’s Power Management Web site at http://www.intersil.com/power.

Pricing and Availability
The ISL6260B is available now in a 40-lead QFN standard or lead-free package and is priced at $3.80. The ISL6262 is available now in a 48-lead QFN package and is priced at $4.00. Both prices are for 1,000-unit quantities. More information on the ISL6260B is available at http://www.intersil.com/cda/deviceinfo/0,1477,ISL6260B,0.html and more information on the ISL6262 is available at http://www.intersil.com/cda/deviceinfo/0,1477,ISL6262,0.html. A large selection of power products is supported by Intersil’s iSim™ online design tool. To explore these solutions, visit http://www.intersil.com/isim/. To view a broad range of application block diagrams, visit Intersil’s Application Design Center at http://www.intersil.com/apps.

Note to editors: To view a high-resolution downloadable photo of these products, visit Intersil’s photo room at: http://www.intersil.com/pressroom/photoarchives.asp. About Intersil
Intersil Corporation, a NASDAQ 100 Index company, is a leader in the design and manufacture of high performance analog semiconductors. The company’s products address three of the industry’s fastest growing markets: flat panel displays, optical storage (CD and DVD recordable) and power management. Intersil products include power management devices for battery management, hot-swap and hot-plug controllers, linear regulators, supervisory ICs, 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 rad-hard 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 www.intersil.com.

iSim and R3 are trademarks of Intersil Americas, Inc. Centrino is a registered trademark of Intel Corporation. All other brands or product names are trademarks or registered trademarks of their respective holders.