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Elantec Semiconductor Announces Two New Smaller Package Four Ampere Step-Down DC:DC Regulators

The EL7563CRE and EL7564CRE in small HTSSOP28 packages broaden Elantec's growing line of continuous current DC:DC regulators

MILPITAS, CALIFORNIA, December 5, 2001 -- Elantec Semiconductor, Inc. (NASDAQ: ELNT), a leader in high-performance analog integrated circuits, today introduced two new step-down DC:DC Regulators with synchronous, integrated power FET transistors in small HTSSOP28 packages. The new HTSSOP28 package provides more than a 50 percent reduction in printed circuit board area, improved thermal performance, and better efficiency compared with the original DC:DC regulators, in Elantec's SOL20 package, as well as competitive products.

Elantec's EL7564CRE operates from input voltages of 4.5V to +5.5V and provides regulated output of 1.0V to +3.8V, while the EL7563CRE operates from input voltages of 3.0V to +3.6V, and provides an output of 1.0V to +2.5V. Both devices operate over an ambient temperature range of -40 to +85 degrees C. Other features for both products include multiple supply start-up tracking, integrated current sensing, cycle-by-cycle current limiting, over-temperature shutdown, soft-start, and under-voltage lockout.

The new HTSSOP28 package offers a thermal resistance from junction-to-ambient of better than 30 degrees C per watt, which is 30 percent lower than the original SOL20 package. The improved thermal performance allows these devices to operate at higher continuous current without requiring forced convection cooling. In a typical application requiring a 3.3V, 3A regulated supply, the EL7564CRE can operate at 85 degrees C with no forced convection cooling. In comparison, the EL7564CM (SOL20 package) would require a modest airflow to operate above 65 degrees C ambient for the same load conditions.

Richard Powers, Elantec's Director of Strategic Marketing for Power Products, said, "The EL7563CRE and EL7564CRE extend Elantec's strong leadership position in low voltage DC:DC regulators. Elantec now offers step-down (buck) regulators rated at continuous currents of 8A, 6A, 4A, 2A, and 1A, which satisfy a broad range of system requirements. With Elantec's increasingly broad product line, design engineers can select the regulator which precisely satisfies their application requirements."

Elantec offers its customers applications support, demo boards, sample devices and technical assistance to assure that the customer achieves maximum performance - with minimum design effort.

Pricing at 1,000-piece quantities for the EL7563CRE or the EL7564CRE is $3.70 each, and decreases with higher volumes. Both devices are available now with production quantities available within four weeks. For more information, please visit our web site at www.intersil.com, or contact our applications department at 1-888-INTERSIL. Elantec designs, manufactures and markets high performance analog integrated circuits primarily for the video, optical storage, communications and power management markets. The Company targets high growth commercial markets in which advances in digital integrated circuit technology are driving increasing demand for high speed, high performance and low power consumption analog circuits.

Certain matters discussed in this press release pertaining to the market trends, product performance, cost effectiveness, and design-in time are forward-looking statements that involve risks and uncertainties. These risks and uncertainties include product introductions by the Company's competitors, competitive pricing pressures, fluctuations in manufacturing yield, changes in the mix or markets in which products are sold, availability and cost of raw materials and other risks discussed in the Company's most recent Forms 10-Q and 10-K filed with the Securities and Exchange Commission.