<PAGE>
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
-----------------------------------------------
SCHEDULE 13G
(RULE 13d-102)
INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT
TO RULES 13D-1(b) AND (c) AND AMENDMENTS THERETO FILED
PURSUANT TO 13D-2(b)
(AMENDMENT NO. 1)(1)
POWER INTEGRATIONS, INC.
- --------------------------------------------------------------------------------
(NAME OF ISSUER)
COMMON STOCK
- --------------------------------------------------------------------------------
(Title of Class of Securities)
0007392761
- --------------------------------------------------------------------------------
(CUSIP Number)
N/A
- --------------------------------------------------------------------------------
(Date of Event Which Requires Filing this Statement)
Check the appropriate box to designate the rule pursuant to which this
Schedule is filed:
/ / Rule 13d-1(b)
/ / Rule 13d-1(c)
/X/ Rule 13d-1(d)
(Continued on following pages)
(Page 1 of 15 Pages)
- ---------------------------
(1) The remainder of this cover page shall be filled out for a reporting
person's initial filing on this form with respect to the subject class
of securities, and for any subsequent amendment containing information
which would alter disclosures provided in a prior cover page.
The information required on the remainder of this cover page shall not
be deemed to be "filed" for the purpose of Section 18 of the
Securities Exchange Act of 1934 ("Act") or otherwise subject to the
liabilities of that section of the Act but shall be subject to all
other provisions of the Act (however, see the Notes).
<PAGE>
CUSIP NO. 0007392761 13G Page 2 of 15 Pages
- --------------------------------------------------------------------------------
1 NAME OF REPORTING PERSONS
S.S. OR I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS
KLEINER PERKINS CAUFIELD & BYERS IV, L.P., A CALIFORNIA LIMITED
PARTNERSHIP ("KPCB IV") 94-3001663
- --------------------------------------------------------------------------------
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A
GROUP* (a) / / (b) /X/
- --------------------------------------------------------------------------------
3 SEC USE ONLY
- --------------------------------------------------------------------------------
4 CITIZENSHIP OR PLACE OF ORGANIZATION
CALIFORNIA LIMITED PARTNERSHIP
- --------------------------------------------------------------------------------
5 SOLE VOTING POWER
-0-
NUMBER OF -----------------------------------------------------------
SHARES 6 SHARED VOTING POWER
BENEFICIALLY -0-
OWNED BY -----------------------------------------------------------
EACH 7 SOLE DISPOSITIVE POWER
REPORTING -0-
PERSON WITH -----------------------------------------------------------
8 SHARED DISPOSITIVE POWER
-0-
- -------------------------------------------------------------------------------
9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH
REPORTING PERSON -0-
- -------------------------------------------------------------------------------
10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES / /
CERTAIN SHARES*
- -------------------------------------------------------------------------------
11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9
0%
- -------------------------------------------------------------------------------
12 TYPE OF REPORTING PERSON*
PN
- -------------------------------------------------------------------------------
*SEE INSTRUCTIONS BEFORE FILLING OUT!
<PAGE>
CUSIP NO. 0007392761 13G Page 3 of 15 Pages
- -------------------------------------------------------------------------------
1 NAME OF REPORTING PERSONS
S.S. OR I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS
KPCB IV ASSOCIATES, L.P., A CALIFORNIA LIMITED
PARTNERSHIP ("KPCB IV ASSOCIATES") 94-3001662
- -------------------------------------------------------------------------------
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A
GROUP* (a)/ / (b)/X/
- -------------------------------------------------------------------------------
3 SEC USE ONLY
- -------------------------------------------------------------------------------
4 CITIZENSHIP OR PLACE OF ORGANIZATION
CALIFORNIA LIMITED PARTNERSHIP
- -------------------------------------------------------------------------------
5 SOLE VOTING POWER -0-
---------------------------------------------------
6 SHARED VOTING POWER
NUMBER OF 14,975 shares which are directly held by
SHARES KPCB Zaibatsu Fund I, a California
BENEFICIALLY limited partnership ("KPCB ZF I").
OWNED BY KPCB IV Associates is the general
EACH partner of KPCB ZF I.
REPORTING ---------------------------------------------------
PERSON WITH 7 SOLE DISPOSITIVE POWER -0-
---------------------------------------------------
8 SHARED DISPOSITIVE POWER
14,975 shares which are directly held
by KPCB Zaibatsu Fund I, a California
limited partnership ("KPCB ZF I").
KPCB IV Associates is the general
partner of KPCB ZF I.
- -------------------------------------------------------------------------------
9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING 14,975
PERSON
- --------------------------------------------------------------------------------
10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES / /
CERTAIN SHARES*
- --------------------------------------------------------------------------------
11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9
0.1%
- --------------------------------------------------------------------------------
12 TYPE OF REPORTING PERSON*
PN
- --------------------------------------------------------------------------------
*SEE INSTRUCTIONS BEFORE FILLING OUT!
<PAGE>
CUSIP NO. 0007392761 13G Page 4 of 15 Pages
- --------------------------------------------------------------------------------
1 NAME OF REPORTING PERSONS
S.S. OR I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS
BROOK BYERS
- --------------------------------------------------------------------------------
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A
GROUP* (a) / / (b) /X/
- --------------------------------------------------------------------------------
3 SEC USE ONLY
- --------------------------------------------------------------------------------
4 CITIZENSHIP OR PLACE OF ORGANIZATION
UNITED STATES
- --------------------------------------------------------------------------------
5 SOLE VOTING POWER 12,292
----------------------------------------------
6 SHARED VOTING POWER
14,975 shares which are directly
held by KPCB ZF I. KPCB IV
Associates is the general partner of
KPCB ZF I. Mr. Byers
NUMBER OF is a general partner of KPCB IV
SHARES Associates. Mr. Byers disclaims
BENEFICIALLY beneficial ownership of the shares
OWNED BY held directly by KPCB ZF I.
EACH ----------------------------------------------
REPORTING 7 SOLE DISPOSITIVE POWER 12,292
PERSON WITH ----------------------------------------------
8 SHARED DISPOSITIVE POWER
14,975 shares which are directly
held by KPCB ZF I. KPCB IV
Associates is the general partner of
KPCB ZF I. Mr. Byers is a general
partner of KPCB IV Associates. Mr.
Byers disclaims beneficial ownership
of the shares held directly by KPCB
ZF I.
- --------------------------------------------------------------------------------
9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH 27,267
REPORTING PERSON
- --------------------------------------------------------------------------------
10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) / /
EXCLUDES CERTAIN SHARES*
- --------------------------------------------------------------------------------
11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9
0.2%
- --------------------------------------------------------------------------------
12 TYPE OF REPORTING PERSON*
IN
- --------------------------------------------------------------------------------
*SEE INSTRUCTIONS BEFORE FILLING OUT!
<PAGE>
CUSIP NO. 0007392761 13G Page 5 of 15 Pages
- --------------------------------------------------------------------------------
1 NAME OF REPORTING PERSONS
- --------------------------------------------------------------------------------
S.S. OR I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS
L. JOHN DOERR
- --------------------------------------------------------------------------------
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A
GROUP* (a) / / (b) /X/
- --------------------------------------------------------------------------------
3 SEC USE ONLY
- --------------------------------------------------------------------------------
4 CITIZENSHIP OR PLACE OF ORGANIZATION
UNITED STATES
- --------------------------------------------------------------------------------
5 SOLE VOTING POWER
-----------------------------------------------------------
3,343 shares held directly by a trust of
which Mr. Doerr is the trustee. Mr.
Doerr disclaims beneficial ownership of
these shares.
-----------------------------------------------------------
6 SHARED VOTING POWER
NUMBER OF 14,975 shares which are directly held by
SHARES KPCB ZF I. KPCB IV Associates is the
BENEFICIALLY general partner of KPCB ZF I. Mr. Doerr
OWNED BY EACH is a general partner of KPCB VII
REPORTING Associates. Mr. Doerr disclaims
PERSON WITH beneficial ownership of the shares held
directly by KPCB ZF I.
-----------------------------------------------------------
7 SOLE DISPOSITIVE POWER
3,343 shares held directly by the Brook
H. Byers Trust. Mr. Doerr is trustee of
the trust and disclaims beneficial
ownership of these shares.
-----------------------------------------------------------
8 SHARED DISPOSITIVE POWER
3,343 shares held directly by a trust of
which Mr. Doerr is the trustee. Mr.
Doerr disclaims beneficial ownership of
these shares.
- --------------------------------------------------------------------------------
9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING 18,318
PERSON
- --------------------------------------------------------------------------------
10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES / /
CERTAIN SHARES*
- --------------------------------------------------------------------------------
11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 0.1%
- --------------------------------------------------------------------------------
12 TYPE OF REPORTING PERSON* IN
- --------------------------------------------------------------------------------
*SEE INSTRUCTIONS BEFORE FILLING OUT!
<PAGE>
CUSIP NO. 0007392761 13G Page 6 of 15 Pages
- --------------------------------------------------------------------------------
1 NAME OF REPORTING PERSONS
S.S. OR I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS
VINOD KHOSLA
- --------------------------------------------------------------------------------
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A
GROUP* (a) / / (b) /X/
- --------------------------------------------------------------------------------
3 SEC USE ONLY
- --------------------------------------------------------------------------------
4 CITIZENSHIP OR PLACE OF ORGANIZATION
UNITED STATES
- --------------------------------------------------------------------------------
5 SOLE VOTING POWER 0
------------------------------------------------------------
6 SHARED VOTING POWER
14,975 shares which are directly held
by KPCB ZF I. KPCB IV Associates is
the general partner of KPCB ZF I. Mr.
Khosla is a general partner of KPCB VI
NUMBER OF Associates. Mr. Khosla disclaims
SHARES beneficial ownership of the shares
BENEFICIALLY held directly by KPCB ZF I.
OWNED BY EACH ------------------------------------------------------------
REPORTING 7 SOLE DISPOSITIVE POWER 0
PERSON WITH ------------------------------------------------------------
8 SHARED DISPOSITIVE POWER
14,975 shares which are directly held
by KPCB ZF I. KPCB IV Associates is
the general partner of KPCB ZF I. Mr.
Khosla is a general partner of KPCB VI
Associates. Mr. Khosla disclaims
beneficial ownership of the shares
held directly by KPCB ZF I.
- --------------------------------------------------------------------------------
9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING 14,975
PERSON
- --------------------------------------------------------------------------------
10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES / /
CERTAIN SHARES*
- --------------------------------------------------------------------------------
11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 0.1%
- --------------------------------------------------------------------------------
12 TYPE OF REPORTING PERSON* IN
- --------------------------------------------------------------------------------
*SEE INSTRUCTIONS BEFORE FILLING OUT!
<PAGE>
CUSIP NO. 0007392761 13G Page 7 of 15 Pages
- --------------------------------------------------------------------------------
1 NAME OF REPORTING PERSONS
S.S. OR I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS
FRANK CAUFIELD
- --------------------------------------------------------------------------------
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A
GROUP* (a) / / (b) /X/
- --------------------------------------------------------------------------------
3 SEC USE ONLY
- --------------------------------------------------------------------------------
4 CITIZENSHIP OR PLACE OF ORGANIZATION
UNITED STATES
- --------------------------------------------------------------------------------
5 SOLE VOTING POWER 15,657
------------------------------------------------------------
6 SHARED VOTING POWER
14,975 shares which are directly held
by KPCB ZF I. KPCB IV Associates is
the general partner of KPCB ZF I. Mr.
NUMBER OF Caufield is a general partner of KPCB
SHARES IV Associates. Mr. Caufield disclaims
BENEFICIALLY beneficial ownership of the shares
OWNED BY EACH held directly by KPCB ZF I.
REPORTING ------------------------------------------------------------
PERSON WITH 7 SOLE DISPOSITIVE POWER 15,657
------------------------------------------------------------
8 SHARED DISPOSITIVE POWER
14,975 shares which are directly held
by KPCB ZF I. KPCB IV Associates is
the general partner of KPCB ZF I. Mr.
Caufield is a general partner of KPCB
IV Associates. Mr. Caufield disclaims
beneficial ownership of the shares
held directly by KPCB ZF I.
- --------------------------------------------------------------------------------
9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING 30,632
PERSON
- --------------------------------------------------------------------------------
10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES / /
CERTAIN SHARES*
- --------------------------------------------------------------------------------
11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 0.2%
- --------------------------------------------------------------------------------
12 TYPE OF REPORTING PERSON* IN
- --------------------------------------------------------------------------------
*SEE INSTRUCTIONS BEFORE FILLING OUT!
<PAGE>
CUSIP NO. 0007392761 13G Page 8 of 15 Pages
- --------------------------------------------------------------------------------
1 NAME OF REPORTING PERSONS
S.S. OR I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS
REGIS MCKENNA
- --------------------------------------------------------------------------------
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A
GROUP* (a) / / (b) /X/
- --------------------------------------------------------------------------------
3 SEC USE ONLY
- --------------------------------------------------------------------------------
4 CITIZENSHIP OR PLACE OF ORGANIZATION
United States
- --------------------------------------------------------------------------------
5 SOLE VOTING POWER 15,527
------------------------------------------------------------
6 SHARED VOTING POWER
14,975 shares are directly held by
KPCB ZF I. KPCB IV Associates is the
general partner of KPCB IV and KPCB ZF
I. Mr. McKenna is a general partner
NUMBER OF of KPCB IV Associates. Mr. McKenna
SHARES disclaims beneficial ownership of the
BENEFICIALLY shares held directly by KPCB ZF I.
OWNED BY EACH ------------------------------------------------------------
REPORTING 7 SOLE DISPOSITIVE POWER 15,527
PERSON WITH ------------------------------------------------------------
8 SHARED DISPOSITIVE POWER
14,975 shares are directly held by
KPCB ZF I. KPCB IV Associates is the
general partner of KPCB IV and KPCB ZF
I. Mr. McKenna is a general partner
of KPCB IV Associates. Mr. McKenna
disclaims beneficial ownership of the
shares held directly by KPCB ZF I.
- --------------------------------------------------------------------------------
9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING 30,502
PERSON
- --------------------------------------------------------------------------------
10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES
CERTAIN SHARES*
- --------------------------------------------------------------------------------
11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 0.2%
- --------------------------------------------------------------------------------
12 TYPE OF REPORTING PERSON* IN
- --------------------------------------------------------------------------------
*SEE INSTRUCTIONS BEFORE FILLING OUT!
<PAGE>
CUSIP NO. 0007392761 13G Page 9 of 15 Pages
- --------------------------------------------------------------------------------
1 NAME OF REPORTING PERSONS
S.S. OR I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS
E. FLOYD KVAMME
- --------------------------------------------------------------------------------
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A
GROUP* (a) / / (b) /X/
- --------------------------------------------------------------------------------
3 SEC USE ONLY
- --------------------------------------------------------------------------------
4 CITIZENSHIP OR PLACE OF ORGANIZATION
United States
- --------------------------------------------------------------------------------
5 SOLE VOTING POWER 71,875
------------------------------------------------------------
6 SHARED VOTING POWER
14,975 shares which are directly held
by KPCB ZF I. KPCB IV Associates is
the general partner of KPCB ZF I. Mr.
NUMBER OF Kvamme is a general partner of KPCB IV
SHARES Associates. Mr. Kvamme disclaims
BENEFICIALLY beneficial ownership of the shares
OWNED BY EACH held directly by KPCB ZF I.
REPORTING ------------------------------------------------------------
PERSON WITH 7 SOLE DISPOSITIVE POWER 71,875
(Includes options exercisable within
60 days for 5,555 shares.)
(Includes options exercisable within
60 days for 5,555 shares.)
------------------------------------------------------------
8 SHARED DISPOSITIVE POWER
14,975 shares which are directly held
by KPCB ZF I. KPCB IV Associates is
the general partner of KPCB ZF I. Mr.
Kvamme is a general partner of KPCB IV
Associates. Mr. Kvamme disclaims
beneficial ownership of the shares
held directly by KPCB ZF I.
- --------------------------------------------------------------------------------
9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING 86,850
PERSON
- --------------------------------------------------------------------------------
10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES
CERTAIN SHARES*
- --------------------------------------------------------------------------------
11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 0.7%
- --------------------------------------------------------------------------------
12 TYPE OF REPORTING PERSON* IN
- --------------------------------------------------------------------------------
*SEE INSTRUCTIONS BEFORE FILLING OUT!
<PAGE>
CUSIP NO. 0007392761 13G Page 10 of 15 Pages
- --------------------------------------------------------------------------------
1 NAME OF REPORTING PERSONS
S.S. OR I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS
THOMAS PERKINS
- --------------------------------------------------------------------------------
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A
GROUP* (a) / / (b) /X/
- --------------------------------------------------------------------------------
3 SEC USE ONLY
- --------------------------------------------------------------------------------
4 CITIZENSHIP OR PLACE OF ORGANIZATION
United States
- --------------------------------------------------------------------------------
5 SOLE VOTING POWER
6,214
------------------------------------------------------------
6 SHARED VOTING POWER
14,975 shares which are directly held
by KPCB ZF I. KPCB IV Associates is
the general partner of KPCB ZF I. Mr.
Perkins is a general partner of KPCB
IV Associates. Mr. Perkins disclaims
NUMBER OF beneficial ownership of the shares
SHARES held directly by KPCB ZF I.
BENEFICIALLY ------------------------------------------------------------
OWNED BY EACH 7 SOLE DISPOSITIVE POWER 6,214
REPORTING ------------------------------------------------------------
PERSON WITH 8 SHARED DISPOSITIVE POWER
14,975 shares which are directly held
by KPCB ZF I. KPCB IV Associates is
the general partner of KPCB ZF I. Mr.
Perkins is a general partner of KPCB
IV Associates. Mr. Perkins disclaims
beneficial ownership of the shares
held directly by KPCB ZF I.
- --------------------------------------------------------------------------------
9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING 21,189
PERSON
- --------------------------------------------------------------------------------
10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES
CERTAIN SHARES*
- --------------------------------------------------------------------------------
11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 0.2%
- --------------------------------------------------------------------------------
12 TYPE OF REPORTING PERSON* IN
- --------------------------------------------------------------------------------
*SEE INSTRUCTIONS BEFORE FILLING OUT!
<PAGE>
Page 11 of 15 Pages
ITEM 1(a) NAME OF ISSUER:
Power Integrations, Inc.
ITEM 1(b) ADDRESS OF ISSUER'S PRINCIPAL EXECUTIVE OFFICES:
477 North Mathilda Avenue
Sunnyale, CA 94086
ITEM 2(a)-(c) NAME, ADDRESS AND CITIZENSHIP OF PERSON FILING:
This amendment is being filed by KPCB IV Associates, whose
principal business address is 2750 Sand Hill Road, Menlo Park,
California 94025. The names and business addresses and
citizenships of all the general partners of KPCB IV Associates
are set forth on Exhibit B hereto.
KPCB IV Associates is general partner of KPCB IV AND KPCB ZF I.
ITEM 2(d) TITLE OF CLASS OF SECURITIES:
Common Stock
ITEM 2(e) CUSIP NUMBER:
0007392761
ITEM 3. IF THIS STATEMENT IS FILED PURSUANT TO RULES 13d-1(b) OR 13d-
2(b), CHECK WHETHER THE PERSON FILING IS A:
Not Applicable
ITEM 4. OWNERSHIP.
Please see Item 5.
ITEM 5. OWNERSHIP OF FIVE PERCENT OR LESS OF A CLASS.
This statement is being filed to report the fact that as of the
date hereof each reporting person has ceased to be the
beneficial owner of more than five percent of the Common Stock
of Power Integrations, Inc.
ITEM 6. OWNERSHIP OF MORE THAN FIVE PERCENT ON BEHALF OF ANOTHER
PERSON.
Not Applicable - See Item 5.
ITEM 7. IDENTIFICATION AND CLASSIFICATION OF THE SUBSIDIARY WHICH
ACQUIRED THE SECURITY BEING REPORTED ON BY THE PARENT HOLDING
COMPANY.
Not Applicable
ITEM 8. IDENTIFICATION AND CLASSIFICATION OF MEMBERS OF THE GROUP.
Not Applicable
ITEM 9. NOTICE OF DISSOLUTION OF GROUP.
Not Applicable
ITEM 10. CERTIFICATION.
Not Applicable
<PAGE>
Page 12 of 15 Pages
SIGNATURES
After reasonable inquiry and to the best of my knowledge and belief, I
certify that that information set forth in this statement is true, complete and
correct.
Date: February 12, 1999
BROOK H. BYERS KPCB IV ASSOCIATES, L.P., A
L. JOHN DOERR CALIFORNIA LIMITED PARTNERSHIP
VINOD KHOSLA
E. FLOYD KVAMME
THOMAS PERKINS
FRANK CAUFIELD
REGIS MCKENNA
Signature: /s/ Michael S. Curry Signature: /s/ Brook H. Byers
-------------------------- -------------------------
Michael S. Curry Brook H. Byers
Attorney-in-Fact A General Partner
KLEINER PERKINS CAUFIELD &
BYERS IV, L.P., A CALIFORNIA
LIMITED PARTNERSHIP
By KPCB IV Associates, L.P., a
California Limited Partnership,
its General Partner
Signature: /s/ Brook H. Byers
-------------------------
Brook H. Byers
A General Partner
<PAGE>
Page 13 of 15 Pages
EXHIBIT INDEX
<TABLE>
<CAPTION>
Found on
Sequentially
Exhibit Numbered Page
- ------- -------------
<S> <C>
Exhibit A: Agreement of Joint Filing 15
Exhibit B: List of General Partners of KPCB IV Associates 16
</TABLE>
<PAGE>
Page 14 of 15 Pages
EXHIBIT A
AGREEMENT OF JOINT FILING
The undersigned hereby agree that they are filing jointly pursuant to Rule
13d-1 of the Act the amended statement dated February 12, 1999 containing the
information required by Schedule 13G, for the Shares of Power Integrations,
Inc., held by Kleiner Perkins Caufield & Byers IV, L.P., and, with respect to
the general partners, such other holdings as may be reported therein.
Date: February 12, 1999
BROOK H. BYERS KPCB IV ASSOCIATES, L.P., A
L. JOHN DOERR CALIFORNIA LIMITED PARTNERSHIP
VINOD KHOSLA
E. FLOYD KVAMME
THOMAS PERKINS
FRANK CAUFIELD
REGIS MCKENNA
Signature: /s/ Michael S. Curry Signature: /s/ Brook H. Byers
-------------------------- -------------------------
Michael S. Curry Brook H. Byers
Attorney-in-Fact A General Partner
KLEINER PERKINS CAUFIELD &
BYERS IV, L.P., A CALIFORNIA
LIMITED PARTNERSHIP
By KPCB IV Associates, L.P., a
California Limited Partnership,
its General Partner
Signature: /s/ Brook H. Byers
-------------------------
Brook H. Byers
A General Partner
<PAGE>
Page 15 of 15 Pages
EXHIBIT B
GENERAL PARTNERS OF
KPCB IV ASSOCIATES, A CALIFORNIA LIMITED PARTNERSHIP
Set forth below, with respect to each general partner of KPCB IV
Associates, is the following: (a) name; (b) business address; and (c)
citizenship.
1. (a) Thomas Perkins
(b) c/o Kleiner Perkins Caufield & Byers
2750 Sand Hill Road
Menlo Park, CA 94025
(c) United States Citizen
2. (a) Brook H. Byers
(b) c/o Kleiner Perkins Caufield & Byers
2750 Sand Hill Road
Menlo Park, CA 94025
(c) United States Citizen
3. (a) Frank Caufield
(b) c/o Kleiner Perkins Caufield & Byers
2750 Sand Hill Road
Menlo Park, CA 94025
(c) United States Citizen
4. (a) L. John Doerr
(b) c/o Kleiner Perkins Caufield & Byers
2750 Sand Hill Road
Menlo Park, CA 94025
(c) United States Citizen
5. (a) Regis McKenna
(b) c/o Kleiner Perkins Caufield & Byers
2750 Sand Hill Road
Menlo Park, CA 94025
(c) United States Citizen
6. (a) Vinod Khosla
(b) c/o Kleiner Perkins Caufield & Byers
2750 Sand Hill Road
Menlo Park, CA 94025
(c) United States Citizen
7. (a) E. Floyd Kvamme
(b) c/o Kleiner Perkins Caufield & Byers
2750 Sand Hill Road
Menlo Park, CA 94025
(c) United States Citizen
