Stull, Stull & Brody Announces Class Action
On Behalf Of Shareholders of Semtech Corp.

NEW YORK, August 22, 2007 — Attorney Advertising. Notice is hereby given that a class action has been commenced on behalf of an investor in the United States District Court for the Southern District of New York on behalf of persons who purchased or otherwise acquired publicly traded securities of Semtech Corp. (“Semtech” or the “Company”) (NASDAQ:SMTC) between September 11, 2002 and July 19, 2006, inclusive (the “Class Period”). The lawsuit was filed against Semtech and certain of its officers and directors (“Defendants”).

The complaint alleges that Defendants violated Sections 10(b) and 20(a) of the Securities Exchange Act of 1934, and Rule 10b-5 promulgated thereunder, by artificially inflating Semtech’s previously reported financial results through an improper stock option backdating scheme that was perpetrated at the highest levels of the Company. Defendants carried out this scheme by intentionally manipulating the grant dates of stock options awarded to themselves and other officers and directors of the Company and selecting grant dates at which Semtech stock traded at much lower prices than the actual grant dates. In public disclosures, however, Defendants falsely claimed that the grants were dated and priced as of the date of the actual grants.

On July 20, 2006, Semtech revealed that it expected to record material amounts of additional compensation expense and that it expected to restate its financial results from fiscal 2002 through 2006, while it also disclosed that its prior financial statements should not be relied upon. Semtech’s share price fell in reaction to this announcement, falling from $13.19 to $12.37 per share. Semtech shares continued to fall in reaction to the news on July 21, 2006, closing at $11.60 per share.

If you purchased Semtech’s securities during the Class Period, you may request that the Court appoint you as lead plaintiff no later than 60 days from August 20, 2007. A lead plaintiff is a representative party that acts on behalf of other class members in directing the litigation. In order to be appointed lead plaintiff, the Court must determine that the class member’s claim is typical of the claims of other class members, and that the class member will adequately represent the class. Under certain circumstances, one or more class members may together serve as “lead plaintiff.” Your ability to share in any recovery is not, however, affected by the decision whether or not to serve as a lead plaintiff. You may retain Stull, Stull & Brody, or other counsel of your choice, to serve as your counsel in this action. Stull, Stull & Brody has litigated many class actions for violations of securities laws in federal courts over the past 30 years and has obtained court approval of substantial settlements on numerous occasions. Stull, Stull & Brody maintains offices in New York and Los Angeles.

If you wish to discuss this action or have any questions concerning this notice or your rights or interests with respect to these matters, please contact Tzivia Brody, Esq. at Stull, Stull & Brody by e-mail at SSBNY@aol.com, by calling toll-free 1-800-337-4983, or by fax at 212-490-2022, or by writing to Stull, Stull & Brody, 6 East 45th Street, New York, NY 10017. You can also visit our website at www.ssbny.com.

Attorney Advertising. Prior Results Do Not Guarantee A Similar Outcome.

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