News & Events
Intersil Introduces Single Chip, Four-Channel DC:DC Converter for Flat Panel Displays

-- New EL7584 is ideal for 14- to 18-inch TFT/LCD displays; incorporates many regulator functions into single small IC

MILPITAS, CA, October 1, 2003 – Intersil Corporation (NASDAQ: ISIL), a world leader in the design and manufacture of high performance analog solutions, today added a new four-channel DC:DC converter to its growing Elantec® family of integrated circuits for LCD flat panel and PDA displays. The EL7584 incorporates multiple regulator functions into a single chip, providing cost and space savings in a broad range of flat panel display designs, including TFT/LCD monitors, LCD notebook displays, pocket PCs and PDAs.

"As a leading supplier of ICs to the flat panel display market, Intersil continues to add innovative new products to its video and flat panel portfolio,” said Michael Jennings, director of marketing for Intersil’s Display Products. “The EL7584 is the latest addition to the Elantec family of multi-output DC:DC converters for flat panel displays, with the features, performance and efficiency that our customers demand. This four-in-one regulator is particularly well suited for 14- to 18-inch TFT/LCD displays, and offers adjustable switching frequencies, on-chip power sequencing and over-temperature protection. As with all of our products, Intersil provides customers superior applications support, demo boards, sample devices and technical assistance to ensure outstanding performance with minimal design effort."

The EL7584 features a 2-volt to 14-volt input capability and provides 5 volts to 18 volts of output from a boost converter for powering column drivers in TFT/LCD applications. It can provide up to 470 milliamps at 12 volts. A regulator is then used to generate a common voltage (VCOM) from 2 volts to 13 volts at up to 50 milliamps of continuous output current and is rated at 180 milliamps peak current.

A pair of charge pump control circuits provides regulated outputs allowing the external generation of VON and VOFF supplies of +5 volts to +40 volts and –40 volts to –5 volts, respectively. A separate input is available to externally increase the default delay of the positive charge pump. An over-temperature feature automatically protects the device from excessive power dissipation. The EL7584 operates over an ambient temperature range of -40 to +85 degrees C. The combination of three regulated output voltages, 90% typical efficiency, wide operating voltage range and small TSSOP package makes the EL7584 an excellent power solution for designers of TFT/LCD displays.

EL7584 Key Features

• TFT/LCD display supply
  • Boost regulator
  • VCOM regulator
  • VON charge pump
  • VOFF charge pump
• 2V to 14V voltage input supply
• Boost converter (VBOOST) output: 5V to 18V
• VCOM buffer output : 2V to 13V
• VON charge pump output : 5V to 40V
• VOFF charge pump output : -40V to 0V
• VBOOST = 5V at 550mA; 15V at 300mA
• High frequency, small inductor DC:DC boost circuit
• Over 90% efficient DC:DC boost converter capability
• Built-in power-up sequence with adjustable VON delay
• Adjustable frequency, soft-start and outputs
• Over-temperature protection
• Small parts count

EL7584 Availability and Pricing
The EL7584 is available now in a 24-pin TSSOP package and is priced at $1.90 each in 1,000-unit quantities. To learn more about Intersil’s Elantec video ICs and solutions, visit the Intersil Web site at: http://www.intersil.com/design/elantec/video.asp About Intersil
Intersil Corporation 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.

This release may include "forward looking statements" that are subject to risks and uncertainties. For information identifying economic, political, climatic, currency, regulatory, technological, competitive and some other important factors that could cause actual results to differ materially from those anticipated in the forward looking statements, see Intersil’s Safe Harbor Forward Looking Statement disclaimer found at http://www.intersil.com/legal.asp, as well as Intersil’s SEC filings as updated from time to time, found at http://www.sec.gov. Elantec is a registered trademark of Intersil Corporation or one of its subsidiaries.