Exhibit 99.1

For investor information contact:

Heidi Flannery, Investor Relations

(510) 743-1718

investor@volterra.com

Volterra Reports Fourth Quarter Results, Record Annual Net Revenue

and Tenth Consecutive Year of Growth

FREMONT, Calif., January 24, 2011

— Volterra Semiconductor Corporation (Nasdaq: VLTR), a leading provider of high-performance analog and mixed-signal power management semiconductors, today reported financial results for its fourth quarter and fiscal year ended December 31, 2010.

For the full year 2010, Volterra reported record annual net revenue of $153.6 million, an increase of 46% from annual net revenue of $104.9 million in 2009. GAAP net income was $28.4 million, or $1.10 per share (diluted), for the fiscal year ended December 31, 2010, an increase of 160% from GAAP net income of $10.9 million, or $0.45 per share (diluted), for the fiscal year ended December 31, 2009. Non-GAAP net income was $35.1 million, or $1.35 per share (diluted), for the fiscal year ended December 31, 2010, an increase of 115% from non-GAAP net income of $16.3 million, or $0.67 per share (diluted), for the fiscal year ended December 31, 2009.

Net revenue for the fourth quarter of 2010 was $35.5 million, a 4% increase over net revenue of $34.2 million for the fourth quarter of 2009, and a 14% decrease from net revenue of $41.6 million for the third quarter of 2010. GAAP net income was $3.4 million, or $0.13 per share (diluted), for the fourth quarter of 2010, a 51% decrease from GAAP net income of $7.0 million, or $0.28 per share (diluted), for the fourth quarter of 2009 and a 59% decrease from GAAP net income of $8.4 million, or $0.32 per share (diluted), for the third quarter of 2010.

Volterra also reported net income and basic and diluted net income per share on a non-GAAP basis. Non-GAAP net income excludes the effect of stock-based compensation expense, net of tax. Non-GAAP net income was $5.4 million, or $0.21 per share (diluted), for the fourth quarter of 2010, a 36% decrease from non-GAAP net income of $8.4 million, or $0.34 per share (diluted), for the fourth quarter of 2009 and a 46% decrease from non-GAAP net income of $10.2 million, or $0.39 per share (diluted), for the third quarter of 2010.

“We are happy to be able to report Volterra’s tenth consecutive year of revenue growth and our seventh consecutive profitable year,” said Volterra President and CEO Jeff Staszak. “We continue to be well positioned to take advantage of opportunities for growth in our major market segments.”

Earnings Conference Call

Volterra will be conducting a conference call today at 2:30 p.m. (PST). To access the conference call, investors can dial (877) 941-2927 approximately ten minutes prior to the initiation of the teleconference. International and local participants can dial (480) 629-9724. Investors should


The following information was filed by Volterra Semiconductor Corp (VLTR) on Monday, January 24, 2011 as an 8K 2.02 statement, which is an earnings press release pertaining to results of operations and financial condition. It may be helpful to assess the quality of management by comparing the information in the press release to the information in the accompanying 10-K Annual Report statement of earnings and operation as management may choose to highlight particular information in the press release.

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