<SEC-DOCUMENT>0001209191-11-033235.txt : 20110606
<SEC-HEADER>0001209191-11-033235.hdr.sgml : 20110606
<ACCEPTANCE-DATETIME>20110606170352
ACCESSION NUMBER:		0001209191-11-033235
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20110526
FILED AS OF DATE:		20110606
DATE AS OF CHANGE:		20110606

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ADVANCED ANALOGIC TECHNOLOGIES INC
		CENTRAL INDEX KEY:			0001104042
		STANDARD INDUSTRIAL CLASSIFICATION:	SEMICONDUCTORS & RELATED DEVICES [3674]
		IRS NUMBER:				770462930
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		3230 SCOTT BOULEVARD
		CITY:			SANTA CLARA
		STATE:			CA
		ZIP:			95054
		BUSINESS PHONE:		(408) 737-4600

	MAIL ADDRESS:	
		STREET 1:		3230 SCOTT BOULEVARD
		CITY:			SANTA CLARA
		STATE:			CA
		ZIP:			95054

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			SKYWORKS SOLUTIONS INC
		CENTRAL INDEX KEY:			0000004127
		STANDARD INDUSTRIAL CLASSIFICATION:	SEMICONDUCTORS & RELATED DEVICES [3674]
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0930

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-51349
		FILM NUMBER:		11895884

	BUSINESS ADDRESS:	
		STREET 1:		20 SYLVAN ROAD
		CITY:			WOBURN
		STATE:			MA
		ZIP:			01801
		BUSINESS PHONE:		6179355150

	MAIL ADDRESS:	
		STREET 1:		20 SYLVAN ROAD
		STREET 2:		20 SYLVAN ROAD
		CITY:			WOBURN
		STATE:			MA
		ZIP:			01801

	FORMER NAME:	
		FORMER CONFORMED NAME:	ALPHA INDUSTRIES INC
		DATE OF NAME CHANGE:	19920703
</SEC-HEADER>
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<DESCRIPTION>MAIN DOCUMENT DESCRIPTION
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    <schemaVersion>X0203</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2011-05-26</periodOfReport>

    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0001104042</issuerCik>
        <issuerName>ADVANCED ANALOGIC TECHNOLOGIES INC</issuerName>
        <issuerTradingSymbol>AATI</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0000004127</rptOwnerCik>
            <rptOwnerName>SKYWORKS SOLUTIONS INC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>20 SYLVAN ROAD</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>WOBURN</rptOwnerCity>
            <rptOwnerState>MA</rptOwnerState>
            <rptOwnerZipCode>01801</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>0</value>
                    <footnoteId id="F1"/>
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                    <value>I</value>
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                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>N/A</value>
                    <footnoteId id="F1"/>
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                </natureOfOwnership>
            </ownershipNature>
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    <derivativeTable>
        <derivativeHolding>
            <securityTitle>
                <value>Stock Options</value>
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                <footnoteId id="F1"/>
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            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>0</value>
                    <footnoteId id="F1"/>
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            <ownershipNature>
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                    <value>I</value>
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                <natureOfOwnership>
                    <value>N/A</value>
                    <footnoteId id="F1"/>
                    <footnoteId id="F2"/>
                    <footnoteId id="F3"/>
                    <footnoteId id="F4"/>
                    <footnoteId id="F5"/>
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                </natureOfOwnership>
            </ownershipNature>
        </derivativeHolding>
        <derivativeHolding>
            <securityTitle>
                <value>Restricted Stock Units</value>
            </securityTitle>
            <conversionOrExercisePrice>
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            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
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                <underlyingSecurityShares>
                    <value>0</value>
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                <directOrIndirectOwnership>
                    <value>I</value>
                    <footnoteId id="F1"/>
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                    <footnoteId id="F4"/>
                    <footnoteId id="F5"/>
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                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>N/A</value>
                    <footnoteId id="F1"/>
                    <footnoteId id="F2"/>
                    <footnoteId id="F3"/>
                    <footnoteId id="F4"/>
                    <footnoteId id="F5"/>
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                </natureOfOwnership>
            </ownershipNature>
        </derivativeHolding>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Skyworks Solutions, Inc. (&quot;Skyworks&quot;) and its wholly owned subsidiary, PowerCo Acquisition Corp. (&quot;Merger Sub&quot;) entered into an Agreement and Plan of Merger, dated May 26, 2011 (the &quot;Merger Agreement&quot;), with Advanced Analogic Technologies Incorporated (&quot;AATI&quot;), pursuant to which Merger Sub will, subject to the satisfaction or waiver of the conditions therein, merge with and into AATI, and AATI will become a wholly owned subsidiary of Skyworks (the &quot;Merger&quot;). (Continued to Footnote (2))</footnote>
        <footnote id="F2">In connection with the Merger Agreement, Skyworks entered into a stockholder agreement (the &quot;Stockholder Agreement&quot;), dated as of May 26, 2011, with the following directors and officers of AATI (each a &quot;Stockholder&quot; and collectively, the &quot;Stockholders&quot;): Richard K. Williams, Samuel J. Anderson, Jason L. Carlson, Jaff Lin, Thomas P. Redfern, Chandramohan Subramanian, Jun-Wei Chen, Ashok Chandran and Kevin D'Angelo.  The Stockholders collectively own 2,576,028 issued and outstanding shares of Common Stock, options currently vested or vesting in the 60 days following May 26, 2011 (without giving effect to any acceleration that may occur upon consummation of the Merger) that are exercisable for 2,430,725 shares of Common Stock and restricted stock units that are currently vested or vesting in the 60 days following May 26, 2011 (without giving effect to any acceleration of vesting that may occur upon consummation of the Merger), (Continued to Footnote (3))</footnote>
        <footnote id="F3">that are subject to settlement in stock for a total of 0 shares of Common Stock, representing, in the aggregate 11.03% of the 42,971,079 shares of Common Stock outstanding as of May 24, 2011. Shares of AATI Common Stock that may be issued pursuant to options and restricted stock units that are, or will be vested and exercisable in the 60 days following May 26, 2011 are deemed outstanding for calculating the percentage ownership of Skyworks. Under the terms of the Stockholder Agreement, any shares of Common Stock received by the Stockholders upon the exercise of stock options or the settlement of restricted stock units are subject to the provisions of the Stockholder Agreement.  (Continued to Footnote (4))</footnote>
        <footnote id="F4">Pursuant to the Stockholder Agreement, each Stockholder has agreed to vote all shares of Common Stock beneficially owned by such Stockholder in favor of adoption of the Merger Agreement and approval of the Merger and the other transactions contemplated by the Merger Agreement and against any other acquisition proposal or alternative acquisition agreement made in opposition to the consummation of the Merger and the transactions contemplated by the Merger Agreement. The Stockholders have also granted Skyworks an irrevocable proxy to vote their shares of Common Stock at any meeting of stockholders called with respect to the adoption of the Merger Agreement and approval of the Merger and the other transactions contemplated by the Merger Agreement.  (Continued to Footnote (5))</footnote>
        <footnote id="F5">Under certain circumstances, the Merger Agreement allows AATI's Board of Directors to withdraw its support for the Merger Agreement and, in certain circumstances, including circumstances involving the receipt of an unsolicited superior proposal, to terminate the Merger Agreement. If the Merger Agreement is terminated in accordance with its terms, the Stockholders Agreement terminates concurrently with the termination of the Merger Agreement and the proxy granted to Skyworks automatically terminates.  As a result of the Stockholder Agreement, Skyworks may be deemed to be the beneficial owner of 5,006,753 shares of Common Stock which are subject to the Stockholder Agreement, which represent approximately 11.03% of the shares of Common Stock of AATI based on the number of shares represnted by AATI to Skyworks in the Merger Agreement as being issued and outstanding as of the close of busienss on May 24, 2011. (Continued to Footnote (6))</footnote>
        <footnote id="F6">The filing of this Initial Statement of Beneficial Ownership of Securities on Form 3 shall not be construed as an admission by Skyworks that it is the beneficial owner of any shares of Common Stock for purposes of Section 13(d), 13(g) or 16 of the Exchange Act, and such beneficial ownership is expressly disclaimed.  Furthermore, because Skyworks does not have any pecuniary interest in the shares of Common Stock covered by the Stockholder Agreement, beneficial ownership over such shares is expressly disclaimed for reporting purposes.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>Skyworks Solutions, Inc., by: /s/ Mark V.B. Tremallo, Vice President, General Counsel and Secretary</signatureName>
        <signatureDate>2011-06-06</signatureDate>
    </ownerSignature>
</ownershipDocument>
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</SEC-DOCUMENT>
