SECURITIES AND EXCHANGE COMMISSION
                           Washington, D.C.  20549


                                   FORM 8-K


                                CURRENT REPORT
                      PURSUANT TO SECTION 13 OR 15(d) OF
                     THE SECURITIES EXCHANGE ACT OF 1934


        Date of Report (Date of earliest event reported): April 24, 2007


                             MICREL, INCORPORATED
            ------------------------------------------------------
            (Exact Name of Registrant as Specified in its Charter)

                                  CALIFORNIA
                ----------------------------------------------
                (State or Other Jurisdiction of Incorporation)


                 0-25236                            94-2526744
        -------------------------           -------------------------
        (Commission File Number)                 (I.R.S. Employer
                                                 Identification No.)

                2180 Fortune Drive, San Jose, CA            95131
           ---------------------------------------------------------
           (Address of Principal Executive Offices)       (Zip Code)


                                (408) 944-0800
             ----------------------------------------------------
             (Registrant's Telephone Number, Including Area Code)


                                Not Applicable
         ------------------------------------------------------------
         (Former Name or Former Address, if Changed Since Last Report)



                     INFORMATION TO BE INCLUDED IN REPORT

Item 1.01(a)  Entry into a Material Definitive Agreement.

Effective April 24, 2007, Micrel, Incorporated entered into a Credit Line
Agreement with Bank of the West. The Credit Line Agreement is attached as
Exhibit 10.1 to this Current Report on Form 8-K, which is incorporated herein
by reference.

Item 9.01. Financial Statements and Exhibits.

(d) Exhibits.

     10.1  Credit Line Agreement dated as of April 24, 2007 among Bank of the
West and Micrel, Incorporated.


                                   SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the
Registrant has duly caused this report to be signed on its behalf by the
undersigned hereunto duly authorized.


                                        MICREL, INCORPORATED
                                          (the Registrant)


                                        By: /s/ Richard D. Crowley
                                            -------------------------
                                            Richard D. Crowley
                                            Vice President, Finance and
                                            Chief Financial Officer
                                            (Principal Financial and
                                             Accounting Officer)

Dated:  April 30, 2007