Monolithic Power Systems Executives to Speak at Two Investor Conferences in Late February

SAN JOSE, Calif. — February 5, 2008 — Monolithic Power Systems (MPS) (Nasdaq: MPWR), a leading fabless manufacturer of high-performance analog and mixed-signal semiconductors, today announced that company executives will present at two investor conferences at the end of this month.

On February 21 st and 22 nd, MPS’s CFO Rick Neely will present in a series of sessions at the Oppenheimer 5th Annual Vail Semiconductor Summit in Vail, CO.

On February 28th, MPS executives will present at the Goldman Sachs Technology Investment Symposium in Las Vegas, NV, at 12:30pm PT/3:30pm ET.

MPS will discuss the company’s continued success in developing and delivering leading edge analog and mixed-signal semiconductor products.

About Monolithic Power Systems
Monolithic Power Systems, Inc. (MPS) develops and markets proprietary, advanced analog and mixed-signal semiconductors. The company combines advanced process technology with its highly experienced analog designers to produce high-performance power management integrated circuits (ICs) for DC to DC converters, LED drivers, Cold Cathode Fluorescent Lamp (CCFL) backlight controllers, Class D audio amplifiers, and Linear ICs. MPS products are used extensively in computing and network communications products, LCD monitors and TVs, and a wide variety of consumer and portable electronics products. MPS partners with world-class manufacturing organizations to deliver top quality, ultra-compact, high-performance solutions through the most productive, cost-efficient channels. Founded in 1997 and headquartered in San Jose, California, the company has expanded its global presence with sales offices in Taiwan, China, Korea, Japan, and Europe, which operate under MPS International, Ltd.

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Monolithic Power Systems, MPS, and the MPS logo are registered trademarks of Monolithic Power Systems, Inc. in the U.S. and trademarked in certain other countries.