-----BEGIN PRIVACY-ENHANCED MESSAGE----- Proc-Type: 2001,MIC-CLEAR Originator-Name: webmaster@www.sec.gov Originator-Key-Asymmetric: MFgwCgYEVQgBAQICAf8DSgAwRwJAW2sNKK9AVtBzYZmr6aGjlWyK3XmZv3dTINen TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB MIC-Info: RSA-MD5,RSA, PldALJhk21h3+yNbvbio/c9mB5/u3yYIAVQhi2S/59AMoFEmgx+2UdyEqNeyT2RL Mog49tdK5AxaV5jDfgKZjg== 0001047469-98-006480.txt : 19980218 0001047469-98-006480.hdr.sgml : 19980218 ACCESSION NUMBER: 0001047469-98-006480 CONFORMED SUBMISSION TYPE: SC 13G PUBLIC DOCUMENT COUNT: 1 FILED AS OF DATE: 19980217 SROS: NONE GROUP MEMBERS: BROOK H. BYERS GROUP MEMBERS: E. FLOYD KVAMME GROUP MEMBERS: FRANK CAUFIELD GROUP MEMBERS: KLEINER PERKINS CAUFIELD & BYERS IV LP GROUP MEMBERS: KPCB IV ASSOCIATES GROUP MEMBERS: L. JOHN DOERR GROUP MEMBERS: REGIS MCKENNA GROUP MEMBERS: THOMAS PERKINS GROUP MEMBERS: VINOD KHOSLA SUBJECT COMPANY: COMPANY DATA: COMPANY CONFORMED NAME: POWER INTEGRATIONS INC CENTRAL INDEX KEY: 0000833640 STANDARD INDUSTRIAL CLASSIFICATION: SEMICONDUCTORS & RELATED DEVICES [3674] IRS NUMBER: 943065014 STATE OF INCORPORATION: CA FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: SC 13G SEC ACT: SEC FILE NUMBER: 005-52867 FILM NUMBER: 98541892 BUSINESS ADDRESS: STREET 1: 477 NORTH MATHILDA AVENUE CITY: SUNNYVALE STATE: CA ZIP: 94086 BUSINESS PHONE: 4085239210 MAIL ADDRESS: STREET 1: 477 NORTH MATHILDA AVENUE CITY: SUNNYVALE STATE: CA ZIP: 94086 FILED BY: COMPANY DATA: COMPANY CONFORMED NAME: KLEINER PERKINS CAUFIELD & BYERS IV LP CENTRAL INDEX KEY: 0000799652 STANDARD INDUSTRIAL CLASSIFICATION: UNKNOWN SIC - 0000 [0000] IRS NUMBER: 943001663 STATE OF INCORPORATION: CA FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: SC 13G BUSINESS ADDRESS: STREET 1: 2750 SAND HILL ROAD CITY: MENLO PARK STATE: CA ZIP: 94025 BUSINESS PHONE: 4152332750 MAIL ADDRESS: STREET 1: 2750 SAND HILL ROAD CITY: MENLO PARK STATE: CA ZIP: 94025 FORMER COMPANY: FORMER CONFORMED NAME: KLEINER PERKINS CAUFIELD & BYERS IV DATE OF NAME CHANGE: 19950126 SC 13G 1 SCHEDULE 13-G 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) POWER INTEGRATIONS, INC. - -------------------------------------------------------------------------------- (NAME OF ISSUER) COMMON STOCK - -------------------------------------------------------------------------------- (TITLE OF CLASS OF SECURITIES) 0007392761 - -------------------------------------------------------------------------------- (CUSIP NUMBER) - ----------------- (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 in 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 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). CUSIP NO. 0007392761 13G Page 2 of 17 Pages 1 NAME OF REPORTING PERSONS I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY) 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 NUMBER - 0 - OF SHARES 6 SHARED VOTING POWER BENEFICIALLY 878,468 OWNED BY REPORTING 7 SOLE DISPOSITIVE POWER PERSON - 0 - WITH 8 SHARED DISPOSITIVE POWER 878,468 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 878,468 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* / / 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 7.3% 12 TYPE OF REPORTING PERSON* PN *SEE INSTRUCTIONS BEFORE FILLING OUT! CUSIP NO. 0007392761 13G Page 3 of 17 Pages 1 NAME OF REPORTING PERSONS I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY) 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 NUMBER - 0 - OF SHARES 6 SHARED VOTING POWER BENEFICIALLY 893,443 shares of which 878,468 OWNED BY shares are directly held by KPCB IV REPORTING and 14,975 shares are directly held PERSON by KPCB Zaibatsu Fund I, a WITH California limited partnership ("KPCB ZF I"). KPCB IV Associates is the general partner of KPCB IV and KPCB ZF I. 7 SOLE DISPOSITIVE POWER - 0 - 8 SHARED DISPOSITIVE POWER 893,443 shares of which 878,468 shares are directly held by KPCB IV and 14,975 shares are directly held by KPCB ZF I. KPCB IV Associates is the general partner of KPCB IV. 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 893,443 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* / / 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 7.4% 12 TYPE OF REPORTING PERSON* PN *SEE INSTRUCTIONS BEFORE FILLING OUT! CUSIP NO. 0007392761 13G Page 4 of 17 Pages 1 NAME OF REPORTING PERSONS I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY) 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 NUMBER - 0 - OF SHARES 6 SHARED VOTING POWER BENEFICIALLY 918,443 shares of which 878,468 shares are directly OWNED BY held by KPCB IV, 14,975 shares are directly held REPORTING by KPCB ZF I, and 25,000 shares are directly held PERSON by KPCB VIII Associates, L.P., a California limited WITH partnership ("KPCB VIII Associates"). KPCB IV Associates, L.P., a California limited partnership ("KPCB IV Associates") is the general partner of KPCB IV and KPCB ZF I. Mr. Byers is a general partner of KPCB IV Associates and KPCB VIII Associates. Mr. Byers disclaims beneficial ownership of the shares held directly by KPCB IV, KPCB ZF I and KPCB VIII Associates. 7 SOLE DISPOSITIVE POWER - 0 - 8 SHARED DISPOSITIVE POWER 918,443 shares of which 878,468 shares are directly held by KPCB IV, 14,975 shares are directly held by KPCB ZF I, and 25,000 shares are directly held by KPCB VIII Associates. KPCB IV Associates is the general partner of KPCB and KPCB ZF I. Mr. Byers is a general partner of KPCB VI Associates and KPCB VIII Associates. Mr. Byers disclaims beneficial ownership of the shares held directly by KPCB IV, KPCB ZF I and KPCB VIII Associates. 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 918,443 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* / / 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 7.6% 12 TYPE OF REPORTING PERSON* IN *SEE INSTRUCTIONS BEFORE FILLING OUT! CUSIP NO. 0007392761 13G Page 5 of 17 Pages 1 NAME OF REPORTING PERSONS I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY) 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 NUMBER - 0 - OF SHARES 6 SHARED VOTING POWER BENEFICIALLY 918,443 shares of which 878,468 shares are directly OWNED BY held by KPCB IV, 14,975 shares are directly held REPORTING by KPCB ZF I, and 25,000 shares are directly held PERSON by KPCB VIII Associates. KPCB IV Associates is the WITH general partner of KPCB IV and KPCB ZF I. Mr. Doerr is a general partner of KPCB VII Associates and KPCB VIII Associates. Mr. Doerr disclaims beneficial ownership of the shares held directly by KPCB IV, KPCB ZF I and KPCB VIII Associates. 7 SOLE DISPOSITIVE POWER - 0 - 8 SHARED DISPOSITIVE POWER 918,443 shares of which 878,468 shares are directly held by KPCB IV, 14,975 shares are directly held by KPCB ZF I, and 25,000 shares are directly held by KPCB VIII Associates. KPCB IV Associates is the general partner of KPCB IV and KPCB ZF I. Mr. Doerr is a general partner of KPCB VI Associates and KPCB VIII Associates. Mr. Doerr disclaims beneficial ownership of the shares held directly by KPCB IV, KPCB ZF I and KPCB VIII Associates. 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 918,443 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* / / 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 7.6% 12 TYPE OF REPORTING PERSON* IN *SEE INSTRUCTIONS BEFORE FILLING OUT! CUSIP NO. 0007392761 13G Page 6 of 17 Pages 1 NAME OF REPORTING PERSONS I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY) 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 NUMBER - 0 - OF SHARES 6 SHARED VOTING POWER BENEFICIALLY 918,443 shares of which 878,468 shares are directly OWNED BY held by KPCB IV, 14,975 shares are directly held REPORTING by KPCB ZF I, and 25,000 shares are directly held PERSON by KPCB VIII Associates. KPCB IV Associates is the WITH general partner of KPCB IV and KPCB ZF I. Mr. Khosla is a general partner of KPCB VII ASSociates and KPCB VIII Associates. Mr. Khosla disclaims beneficial ownership of the shares held directly by KPCB IV, KPCB ZF I and KPCB VIII Associates. 7 SOLE DISPOSITIVE POWER - 0 - 8 SHARED DISPOSITIVE POWER 918,443 shares of which 878,468 shares are directly held by KPCB IV, 14,975 shares are directly held by KPCB ZF I, and 25,000 shares are directly held by KPCB VIII Associates. KPCB IV Associates is the general partner of KPCB IV and KPCB ZF I. Mr. Khosla is a general partner of KPCB VII Associates and KPCB VIII Associates. Mr. Khosla disclaims beneficial ownership of the shares held directly by KPCB IV, KPCB ZF I and KPCB VIII Associates. 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 918,443 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* / / 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 7.6% 12 TYPE OF REPORTING PERSON* IN *SEE INSTRUCTIONS BEFORE FILLING OUT! CUSIP NO. 0007392761 13G Page 7 of 17 Pages 1 NAME OF REPORTING PERSONS I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY) 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 NUMBER - 0 - OF SHARES 6 SHARED VOTING POWER BENEFICIALLY 893,443 shares of which 878,468 shares are directly OWNED BY held by KPCB IV and 14,975 shares are directly held REPORTING by KPCB ZF I. KPCB IV Associates is the general PERSON partner of KPCB IV and KPCB ZF I. Mr. Caufield is WITH a general partner of KPCB IV Associates. Mr. Caufield disclaims beneficial ownership of the shares held directly by KPCB IV. 7 SOLE DISPOSITIVE POWER - 0 - 8 SHARED DISPOSITIVE POWER 893,443 shares of which 878,468 shares are directly held by KPCB IV and 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. Caufield is a general partner of KPCB IV Associates. Mr. Caufield disclaims beneficial ownership of the shares held directly by KPCB IV. 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 893,443 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* / / 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 7.4% 12 TYPE OF REPORTING PERSON* IN *SEE INSTRUCTIONS BEFORE FILLING OUT! CUSIP NO. 0007392761 13G Page 8 of 17 Pages 1 NAME OF REPORTING PERSONS I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY) 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 NUMBER - 0 - OF SHARES 6 SHARED VOTING POWER BENEFICIALLY 893,443 shares of which 878,468 shares are directly OWNED BY held by KPCB IV and 14,975 are directly held by REPORTING KPCB ZF I. KPCB IV Associates is the general PERSON partner of KPCB IV and KPCB ZF I. Mr. McKenna is a WITH general partner of KPCB IV Associates. Mr. McKenna disclaims beneficial ownership of the shares held directly by KPCB IV. 7 SOLE DISPOSITIVE POWER - 0 - 8 SHARED DISPOSITIVE POWER 893,443 shares of which 878,468 shares are directly held by KPCB IV and 14,975 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 IV. 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 893,443 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* / / 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 7.4% 12 TYPE OF REPORTING PERSON* IN *SEE INSTRUCTIONS BEFORE FILLING OUT! CUSIP NO. 0007392761 13G Page 9 of 17 Pages 1 NAME OF REPORTING PERSONS I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY) 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 NUMBER 35,000 OF SHARES 6 SHARED VOTING POWER BENEFICIALLY 893,443 shares of which 878,468 shares are directly OWNED BY held by KPCB IV and 14,975 shares are directly held REPORTING by KPCB ZF I. KPCB IV Associates is the general PERSON partner of KPCB IV and KPCB ZF I. Mr. Kvamme is a WITH general partner of KPCB IV Associates and KPCB VI Associates. Mr. Kvamme disclaims beneficial ownership of the shares held directly by KPCB IV. 7 SOLE DISPOSITIVE POWER 35,000 8 SHARED DISPOSITIVE POWER 893,443 shares of which 878,468 shares are directly held by KPCB IV and 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. Kvamme is a general partner of KPCB IV Associates and KPCB VI Associates. Mr. Kvamme disclaims beneficial ownership of the shares held directly by KPCB IV. 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 928,443 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* / / 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 7.7% 12 TYPE OF REPORTING PERSON* IN *SEE INSTRUCTIONS BEFORE FILLING OUT! CUSIP NO. 0007392761 13G Page 10 of 17 Pages 1 NAME OF REPORTING PERSONS I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY) 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 NUMBER - 0 - OF 6 SHARED VOTING POWER SHARES 893,443 shares of which 878,468 shares are directly BENEFICIALLY held by KPCB IV and 14,975 shares are directly held OWNED BY by KPCB ZF I. KPCB IV Associates is the general REPORTING partner of KPCB IV and KPCB ZF I. Mr. Perkins is a PERSON general partner of KPCB IV Associates. Mr. Perkins WITH disclaims beneficial ownership of the shares held directly by KPCB IV. 7 SOLE DISPOSITIVE POWER - 0 - 8 SHARED DISPOSITIVE POWER 893,443 shares of which 878,468 shares are directly held by KPCB IV and 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. Perkins is a general partner of KPCB IV Associates. Mr. Perkins disclaims beneficial ownership of the shares held directly by KPCB IV. 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 878,468 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* / / 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 7.3% 12 TYPE OF REPORTING PERSON* IN *SEE INSTRUCTIONS BEFORE FILLING OUT! Page 11 of 17 Pages ITEM 1(a) NAME OF ISSUER: Power Integrations, Inc. ITEM 1(b) ADDRESS OF ISSUER'S PRINCIPAL EXECUTIVE OFFICES: 477 North Mathilda Avenue Sunnyvale, CA 94086 ITEM 2(a)-(c) NAME, ADDRESS AND CITIZENSHIP OF PERSONS FILING: This statement 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. In addition, certain general partners of KPCB IV Associates are also general partners of KPCB VIII Associates. KPCB IV Associates is general partner to KPCB IV and KPCB ZF I. With respect to KPCB IV Associates, this statement relates only to KPCB IV Associates' and, for those general partners of KPCB IV Associates who are also general partners of KPCB VIII Associates, indirect, beneficial ownership of the shares of Common Stock of Power Integrations, Inc., held directly by KPCB IV, KPCB ZF I and KPCB VIII (the "Shares") and, to the extent applicable, to the shares over which each general partner exercises sole voting and dispositive control. The Shares are held directly by KPCB IV, KPCB ZF I and KPCB VIII not directly or otherwise hold any Shares. Management of the business affairs of KPCB IV Associates and KPCB VIII including decisions respecting disposition and/or voting of the Shares, is by majority decision of the general partners of KPCB IV Associates and KPCB VIII respectively, each of whom disclaims beneficial ownership of the Shares. ITEM 2(d) TITLE OF CLASS OF SECURITIES: Common Stock Page 12 of 17 Pages 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. See rows 5-11 of cover pages hereto. ITEM 5. OWNERSHIP OF FIVE PERCENT OR LESS OF A CLASS. Not Applicable ITEM 6. OWNERSHIP OF MORE THAN FIVE PERCENT ON BEHALF OF ANOTHER PERSON. Under certain circumstances set forth in the limited partnership agreements of KPCB IV, KPCB IV Associates, KPCB ZF I and KPCB VIII Associates the general and limited partners of such entities may have the right to receive dividends on, or the proceeds from the sale of the Shares of Power Integrations Inc. held by such entity. No such partner's rights relate to more than five percent of the class. 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 13 of 17 Pages SIGNATURES After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct. Date: February 10, 1998 BROOK H. BYERS KPCB IV ASSOCIATES, L.P., L. JOHN DOERR A CALIFORNIA VINOD KHOSLA LIMITED PARTNERSHIP E. FLOYD KVAMME THOMAS PERKINS FRANK CAUFIELD REGIS MCKENNA By: /s/ Brook H. Byers ---------------------------------------- A General Partner By: /s/ Michael S. Curry KLEINER PERKINS CAUFIELD & -------------------------- BYERS IV, L.P., A CALIFORNIA Michael S. Curry LIMITED PARTNERSHIP Attorney-in-Fact By KPCB IV Associates, L.P., a California Limited Partnership, its General Partner By: /s/ Brook H. Byers ---------------------------------------- A General Partner Page 14 of 17 Pages EXHIBIT INDEX Found on Sequentially Exhibit Numbered Page - ------- ------------- Exhibit A: Agreement of Joint Filing 15 Exhibit B: List of General Partners of KPCB IV Associates 16 Page 15 of 17 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 10, 1998, 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 10, 1998 BROOK H. BYERS KLEINER PERKINS CAUFIELD & L. JOHN DOERR BYERS IV, L.P., A CALIFORNIA VINOD KHOSLA LIMITED PARTNERSHIP E. FLOYD KVAMME THOMAS PERKINS By KPCB IV Associates, L.P., a FRANK CAUFIELD California Limited REGIS MCKENNA Partnership, its General Partner By: /s/ Michael S. Curry --------------------------- By: /s/ Brook H. Byers Michael S. Curry -------------------------------- Attorney-in-Fact A General Partner KPCB IV ASSOCIATES, A CALIFORNIA LIMITED PARTNERSHIP By: /s/ Brook H. Byers -------------------------- A General Partner Page 16 of 17 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 Page 17 of 17 Pages 7. (a) E. Floyd Kvamme (b) c/o Kleiner Perkins Caufield & Byers 2750 Sand Hill Road Menlo Park, CA 94025 (c) United States Citizen - ---------------- + Listed individual is also a general partner of KPCB VIII Associates, L.P., a California limited partnership. -----END PRIVACY-ENHANCED MESSAGE-----