FIRST AMENDMENT TO LEASE AGREEMENT
 
THIS FIRST AMENDMENT TO LEASE AGREEMENT (the “First Amendment”) is made and
entered into as of this 20  day of Oct  , 2004, by and between ProLogis Limited
Partnership I, a Delaware Limited Partnership (“Landlord”) and Volterra
Semiconductor Corporation, a Delaware corporation (“Tenant”).
 
Landlord and Tenant entered into that certain Lease Agreement dated August 3,
2000 (the “Lease”) with respect to certain premises containing approximately
20,000 rentable square feet, as determined by Landlord, of the Building commonly
known as 3839 Spinnaker Court, Fremont, California (“Premises”).
 
Landlord and Tenant therefore do agree that the following modifications will be
made to the Lease:
 

1.  
Letter of Credit: Addendum III of the Lease shall be deleted and Tenant shall
have no obligation to provide a Letter of Credit for additional security.

 

 
3.
Ratification; Conflict: Except as set forth in Paragraphs 1 above, the terms of
the Lease remain unchanged and Landlord and Tenant hereby ratify and confirm all
of said unchanged terms of the Lease. In the event of any conflict between the
Lease and this First Amendment, the terms of this First Amendment shall govern.

 
IN WITNESS WHEREOF, Landlord and Tenant have executed this First Amendment as of
the date first written above.
 

LANDLORD:       TENANT:         ProLogis Limited Partnership-I,
a Delaware Limited Partnership      Volterra Semiconductor Corporation, a
 Delaware corporation         By: ProLogis, a Maryland Real Estate
Investment Trust, its General Partner
             
By: /s/ W. Scott Lamson
    By: /s/ Greg Hildebrand   

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   W. Scott Lamson
   

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GREG HILDEBRAND Its: Senior Vice President     Its: CFO       Date: 10/20/04    
 Date: 10/5/04

 
 
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