Exhibit 99 Contact: Richard Crowley Micrel, Incorporated 2180 Fortune Drive San Jose, CA 95131 Phone: (408) 944-0800 [Micrel Logo] PRESS RELEASE MICREL REPORTS FIRST QUARTER 2007 FINANCIAL RESULTS * First quarter revenues of $63.1 million, down 2% sequentially and 7% year-over-year * First quarter gross margin increases to 58.1% from 57.3% in the previous quarter * First quarter net income per diluted share of $0.23, compared with $0.11 in fourth quarter and $0.10 in first quarter 2006 San Jose, CA, April 25, 2007 - Micrel, Incorporated (Nasdaq NM: MCRL), an industry leader in analog, high bandwidth communications and Ethernet IC solutions, today announced financial results for the first quarter ending March 31, 2007. Revenues for the first quarter were $63.1 million, a decrease of 2% from fourth quarter of 2006 revenues of $64.5 million and 7% lower than revenues of $68.1 million recorded in the year-ago period. First quarter net income was $17.9 million, or $0.23 per diluted share compared with net income of $8.8 million, or $0.11 per diluted share in the fourth quarter of 2006 and $8.7 million, or $0.10 per diluted share in the year ago period. Included in first quarter net income is a one-time $15.5 million pre-tax gain associated with a legal settlement, which after income taxes, is equivalent to $0.13 per diluted share. Order rates increased on a sequential basis in the first quarter. The improvement in bookings was driven by higher order levels from customers serving the high speed communications, wireless handset and industrial end markets. In addition, bookings increased across all geographic areas, resulting in a book-to-bill ratio greater than one. "We are encouraged by the improvement in demand we experienced in the first quarter," stated Ray Zinn, president and CEO of Micrel. "Although customers continued to closely monitor and control their inventories during the period, the order rates the Company experienced suggest that customer and channel <Page> MICREL REPORTS FIRST QUARTER 2007 RESULTS April 25, 2007 Page 2 of 6 inventories have fallen to levels consistent with current end demand. While the improvement in demand did not prevent a sequential decline in revenues, we are pleased that Micrel's first quarter gross margin increased on a sequential basis. This gross margin improvement was accomplished while reducing our inventory levels. Importantly, cash flows continued to be strongly positive and we released an exciting group of new products during the quarter." As announced yesterday, Micrel's board of directors has authorized the commencement of a quarterly dividend payment. The initial dividend payment of $0.03 per share of common stock will paid on May 30, 2007 to shareholders of record as of May 8, 2007. Outlook ------- Order lead times for the Company's products remain fairly stable at four to six weeks, but a relatively high proportion of quarterly revenue must still be booked and shipped within the quarter to OEM customers, or resold through the Company's distributors. Based upon current backlog levels and demand estimates, the Company projects second quarter 2007 revenues will increase sequentially by 2% to 6%, and earnings per diluted share will be in a range of $0.10 to $0.12. Conference Call --------------- The Company will host a conference call at 4:30 p.m. Eastern time (1:30 p.m. Pacific time) on April 25, 2007. Chief Executive Officer Raymond Zinn and Chief Financial Officer Richard Crowley will present an overview of first quarter financial results, discuss current business conditions and then respond to questions. The call is available, live, to any interested party on a listen only basis by dialing (866) 249-5225. For international callers, please dial (303) 262-2125. Interested callers should dial-in at least five minutes before the scheduled start time and ask to be connected to the Micrel, Incorporated Conference Call. A live webcast will also be available through www.vcall.com. An audio replay of the conference call will be available through May 2, 2007, by dialing (303) 590-3000 or (800) 405-2236 and entering access code number 11088231. The webcast replay will also be available on the Company's website at: www.micrel.com. <Page> MICREL REPORTS FIRST QUARTER 2007 RESULTS April 25, 2007 Page 3 of 6 SAFE HARBOR STATEMENT UNDER THE PRIVATE SECURITIES LITIGATION REFORM ACT OF 1995 This press release includes statements that qualify as forward-looking statements under the Private Securities Litigation Reform Act of 1995. These forward-looking statements include statements about the following topics: our expectations regarding future financial results, including revenues, net income, earnings per share, order lead times, customer demand, customer and supply chain inventory levels and the nature of macro-economic and industry trends. Forward-looking statements are subject to certain risks and uncertainties that could cause actual results to differ materially. Those risks and uncertainties include, but are not limited to, such factors as: softness in demand for our products; customer decisions to cancel, reschedule, or delay orders for our products; the effect that lead times and channel inventories have on the demand for our products; economic or financial difficulties experienced by our customers; the effect of business conditions in the computer, telecommunications and industrial markets; the impact of any previous or future acquisitions; changes in demand for networking or high bandwidth communications products; the impact of competitive products and pricing and alternative technological advances; the accuracy of estimates used to prepare the Company's financial statements; the global economic situation; the ability of the Company's vendors and subcontractors to supply or manufacture the Company's products in a timely manner; the timely and successful development and market acceptance of new products and upgrades to existing products; softness in the economy and the U.S. stock markets as a whole; fluctuations in the market price of Micrel's common stock and other market conditions; the difficulty of predicting our future cash needs; the nature of other investment opportunities available to the Company from time to time; and Micrel's operating cash flow. For further discussion of these risks and uncertainties, we refer you to the documents the Company files with the SEC from time to time, including the Company's Annual Report on Form 10-K for the year ended December 31, 2006. All forward-looking statements are made as of today, and the Company disclaims any duty to update such statements. About Micrel ------------ Micrel Inc., is a leading global manufacturer of IC solutions for the worldwide analog, Ethernet and high bandwidth markets. The Company's products include advanced mixed-signal, analog and power semiconductors; high performance communication, clock management, Ethernet switch and physical <Page> MICREL REPORTS FIRST QUARTER 2007 RESULTS April 25, 2007 Page 4 of 6 layer transceiver ICs. Company customers include leading manufacturers of enterprise, consumer, industrial, mobile, telecommunications, automotive, and computer products. Corporation headquarters and state-of-the-art wafer fabrication facilities are located in San Jose, CA, with regional sales and support offices and advanced technology design centers situated throughout the Americas, Europe and Asia. In addition, the Company maintains an extensive network of distributors and sales representatives worldwide. For further information, contact Richard Crowley at: Micrel, Incorporated, 2180 Fortune Drive, San Jose, California, 95131, (408) 944-0800; or visit our website at: http://www.micrel.com. -Financial Tables to Follow MICREL REPORTS FIRST QUARTER 2007 RESULTS April 25, 2007 Page 5 of 6 MICREL, INCORPORATED CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (In thousands, except per share amounts) (Unaudited) Three Months Ended --------------------------------- March 31, December 31, March 31, 2007 2006 2006 --------- --------- --------- Net revenues $ 63,113 $ 64,482 $ 68,151 Cost of revenues(1) 26,426 27,555 28,257 --------- --------- --------- Gross profit 36,687 36,927 39,894 Operating expenses: Research and development(1) 13,252 12,813 13,038 Selling, general and administrative(1) 12,137 11,485 13,411 Other operating expense (income) -- 53 -- Restructuring expense 44 168 -- --------- --------- --------- Total operating expenses 25,433 24,519 26,449 --------- --------- --------- Income from operations 11,254 12,408 13,445 Other income (expense): Interest Income 1,501 1,426 1,411 Interest Expense (152) (146) (163) Other income 15,514 8 4 --------- --------- --------- Total other income (expense) 16,863 1,288 1,252 --------- --------- --------- Income before income taxes 28,117 13,696 14,697 Provision for income taxes 10,249 4,883 5,996 --------- --------- --------- Net income $ 17,868 $ 8,813 $ 8,701 ========= ========= ========= Net income per share: Basic $ 0.23 $ 0.11 $ 0.10 ========= ========= ========= Diluted $ 0.23 $ 0.11 $ 0.10 ========= ========= ========= Shares used in computing per share amounts: Basic 77,738 78,372 84,025 ========= ========= ========= Diluted 78,750 79,476 85,794 ========= ========= ========= (1) Includes amortization of stock-based compensation as follows: Cost of revenues $ 302 $ 353 $ 182 Research and development 479 497 1,065 Selling, general and administrative 489 591 1,109 MICREL REPORTS FIRST QUARTER 2007 RESULTS April 25, 2007 Page 6 of 6 MICREL, INCORPORATED CONDENSED CONSOLIDATED BALANCE SHEETS (In thousands) (Unaudited) March 31, December 31, 2007 2006 ---------- ---------- ASSETS CURRENT ASSETS: Cash, cash equivalents, restricted cash and short-term investments $ 129,832 $ 109,938 Accounts receivable, net 33,781 31,092 Inventories 36,200 37,183 Deferred income taxes 24,127 23,096 Other current assets 2,616 3,084 ---------- ---------- Total current assets 226,556 204,393 PROPERTY, PLANT AND EQUIPMENT, NET 77,795 78,665 INTANGIBLE ASSETS, NET 4,301 4,714 DEFERRED INCOME TAXES(1) 8,091 11,158 OTHER ASSETS 1,351 1,343 ---------- ---------- TOTAL $ 318,094 $ 300,273 ========== ========== LIABILITIES AND SHAREHOLDERS' EQUITY CURRENT LIABILITIES: Accounts payable $ 15,645 $ 17,429 Taxes payable(1) 4,768 -- Deferred income on shipments to distributors 23,257 21,705 Other current liabilities 20,671 22,564 Current portion of long-term debt 41 80 ---------- ---------- Total current liabilities 64,382 61,778 LONG-TERM TAXES PAYABLE(1) 2,132 -- OTHER LONG-TERM OBLIGATIONS 450 453 SHAREHOLDERS' EQUITY: Common stock 10,804 15,585 Deferred stock compensation -- -- Accumulated other comprehensive loss (34) (35) Retained earnings 240,360 222,492 ---------- ---------- TOTAL SHAREHOLDERS' EQUITY 251,130 238,042 ---------- ---------- TOTAL $ 318,094 $ 300,273 ========== ========== (1) On January 1, 2007, Micrel adopted FASB Interpretation No. 48, Accounting for Uncertainty in Income Taxes ("FIN 48"). Implementation of FIN 48 resulted in a $2.1 million reclassification from current taxes payable to long-term taxes payable and an additional $2.5 million was reclassified from current taxes payable to reduce long term deferred tax assets.