Semtech's Newest 3.3V Protection Device Offers Simplified Design-in for Systems Transitioning from 5V Protection Devices; New uClamp3304A Protection Device Offers Improved Performance, Pin-Compatibility for Portable Designs.

CAMARILLO, Calif. -- Semtech Corp. (Nasdaq:SMTC), a leading supplier of analog and mixed-signal semiconductors for communications, portable devices, computers, and industrial equipment, today announced the uClamp(TM)3304A, a 3.3V electrostatic discharge (ESD) protection device with the performance needed for next-generation portable designs, and packaged in an ultra small SC-89 package that is pin compatible with 5V protection devices for a simplified board design.

The uClamp3304A protects up to four lines from ESD, features low leakage current for longer battery life, and a low clamping voltage range for superior protection. The device's SC-89 package is one of the smallest multi-line packages available, measuring 1.7 x 1.7 x 0.6 mm. It can be dropped into designs that previously used either an SOT-666- or SC-89-based 5V device, resulting in a more reliable solution for systems operating at sub 5 volts.

The uClamp3304A is constructed using Semtech's patented EPD TVS process technology, yielding true 3.3 operating voltages. In addition to low operating voltage, this process yields other advantages, including low capacitance. The uClamp3304A is rated for less than 30pF of capacitance, enabling its use on higher speed lines such as keypads, LEDs, and multimedia card interfaces found in today's cellular handsets.

The uClamp3304A is part of Semtech's MicroClamp(TM) ESD protection family. The device augments the recently announced uClamp3324P 3.3V protection device, which offers the same feature set, but is packaged in a flow through SLP2116P8 package. The uClamp3324P minimizes the board redesign needed to upgrade from discrete multi-line varistors in applications where the designer needs to save board space or improve protection.

"The recent additions to our MicroClamp product line utilize Semtech's advances in process technology, along with packaging flexibility, to give designers new options for increasing protection levels in 3.3V portable designs without sacrificing board space," said Tom Dugan, Semtech's Director of Protection Products. "The addition of the uClamp3304A gives Semtech the most flexible product line available for these next-generation designs."

The lead-free design of the device meets worldwide environmental and regulatory requirements, including the European Union's Restriction on Hazardous Substances in Electrical and Electronic Equipment (RoHS) directive.

Key Features of the uClamp3304A

--ESD protection for data lines to IEC 61000-4-2 (+/-15kV for air, +/-8kV for contact)

--EFT protection for data lines to IEC 61000-4-4 (5/50ns)

--SC-89 package (1.7 x 1.7 x 0.6 mm)

--3.3V of working voltage

--Low leakage current

--Low operating and clamping voltage

--Protects up to four lines

--Applications: cell phones, PDAs, notebook computers, and digital cameras

Pricing and Availability

The uClamp3304A is available immediately in production quantities and is priced at $0.28 each in 1,000-piece lots. The ordering code is uClamp3304A.TCT. Semtech offers comprehensive design assistance, including field- and factory-based support. Data sheets, volume pricing, and delivery quotes, as well as evaluation kits and samples, are available by contacting [e-mail].

About Semtech

Semtech Corporation is a leading supplier of high-quality analog and mixed-signal semiconductor products. The company is dedicated to providing customers with proprietary solutions and breakthrough technology in power management, protection, advanced communications, human interface, test & measurement, and wireless connectivity products. Publicly traded since 1967, Semtech is listed on the NASDAQ National Market under the symbol SMTC. For more information, contact Semtech Corp. at 200 Flynn Road, Camarillo, CA 93012-8790; phone [phone]; email to [e-mail]; or visit its web site at www.semtech.com.

Semtech, the Semtech logo, MicroClamp, and uClamp are marks of Semtech Corporation.