Exhibit 3.1

AMENDED AND RESTATED

CERTIFICATE OF INCORPORATION

OF

LSI CORPORATION

FIRST

The name of the corporation (the “Corporation”) is LSI Corporation.

SECOND

The address of the Corporation’s registered office in the State of Delaware is 2711 Centerville Road, Suite 400 in the City of Wilmington, County of New Castle, 19808. The name of its registered agent at such address is Corporation Service Company.

THIRD

The purpose of the Corporation is to engage in any lawful act or activity for which a corporation may be organized under the General Corporation Law of the State of Delaware, as the same exists or may hereafter be amended (“DGCL”) or any successor statute.

FOURTH

The total number of shares of all classes of stock that the Corporation shall have authority to issue is 1,000 shares, all of which are Common Stock with a par value of $0.01.

FIFTH

In furtherance and not in limitation of the powers conferred by statute, it is further provided that:

SIXTH

Election of directors need not be by written ballot unless the bylaws of the Corporation shall so provide.

SEVENTH

To the fullest extent permitted by the DGCL, a director of the Corporation shall not be personally liable to the Corporation or its stockholders for monetary damages for breach of fiduciary duty as a director. Neither any amendment nor repeal of this Article SEVENTH, nor the adoption of any provision of this Certificate of Incorporation inconsistent with this Article SEVENTH, shall eliminate or reduce the effect of this Article SEVENTH with respect to any matter occurring, or any cause of action, suit or claim that, but for this Article SEVENTH, would accrue or arise, prior to such amendment, repeal or adoption of an inconsistent provision.

EIGHTH

(A) The Corporation shall indemnify its directors and officers to the fullest extent authorized or permitted by the DGCL, and such right to indemnification shall continue as to a person who has ceased to be director or officer of the Corporation and shall inure to the benefit of his or her heirs, executors and administrators; provided, however, that, except for proceedings to enforce rights to indemnification, the Corporation shall not be obligated to indemnify any director or officer (or his or her heirs, executors or administrators) in connection with a proceeding (or part thereof) initiated by such person unless such proceeding (or part thereof) was authorized by the Board of Directors of the Corporation. The right to indemnification conferred in this paragraph shall be a contract right and shall include the right to be paid by the Corporation the expenses incurred in defending or otherwise participating in any proceeding in advance of its final disposition.

(B) The Corporation shall have the express authority to enter into such agreements as the Board of Directors deems appropriate for the indemnification of directors and officers of the Corporation. Such agreements may contain provisions relating to, among other things, the advancement of expenses, a person’s right to bring suit against the Corporation to enforce his or her right to indemnification, the establishment of a trust to assure the availability of funds to satisfy the Corporation’s indemnification obligations to such person and other matters as the Board of Directors deems appropriate or advisable.

(C) The rights to indemnification and to the advancement of expenses conferred in this Article EIGHTH shall not be exclusive of any other right which any person may have or hereafter acquire under this Certificate of Incorporation, the bylaws of the Corporation, any statute, agreement, vote of stockholders or disinterested directors or otherwise.

(D) The Corporation may maintain insurance, at its expense, to protect itself and any director, officer, employee or agent of the Corporation or another corporation, partnership, joint venture, trust, employee benefit plan or other enterprise against any expense, liability or loss, whether or not the Corporation would have the power to indemnify such person against such expense, liability or loss under the DGCL.

(E) Any repeal or modification of the foregoing provisions of this Article EIGHTH shall not adversely affect any right or protection of a director or officer of the

Corporation, or other person indemnified by the Corporation, with respect to any acts or omissions of such director, officer or other person existing at the time of such repeal or modification.

NINTH

Subject to such limitations as may be from time to time imposed by other provisions of this Certificate of Incorporation, by the bylaws of the Corporation, by the DGCL or other applicable law, or by any contract or agreement to which the Corporation is or may become a party, the Corporation reserves the right to amend or repeal any provision contained in this Certificate of Incorporation, in the manner now or hereafter prescribed by statute, and all rights conferred upon stockholders herein are granted subject to this express reservation.