LIMITED POWER OF ATTORNEY FOR SECTION 16 REPORTING OBLIGATIONS

Know all by these presents, that the undersigned hereby
constitutes and appoints each of Balu Balakrishnan,
Sandeep Nayyar, Eric Verity and
Jeff Padilla, or either of them acting singly
and with full power of substitution,
the undersigned's true and lawful attorney-in-fact to:

1. Execute for and on behalf of the undersigned,
in the undersigned's capacity as an
officer or director or both of Power Integrations,
Inc. (the "Company"), Forms 3, 4 and 5
(and any amendments thereto) in accordance with
Section 16(a) of the Securities Exchange Act of
1934, as amended (the "Exchange Act"), and the rules thereunder;

2.Do and perform any and all acts for and on behalf of the
undersigned which may be necessary or desirable to complete
and execute any such Form 3, 4 or 5, complete and execute
any amendments thereto, and timely file such form with the U.S.
Securities and Exchange Commission (the "SEC"),
including without limitation the filing of a Form ID or any other
documents necessary or appropriate to enable the undersigned
to file the Forms 3, 4 and 5 electronically with the SEC; and

3.Take any other action in connection with the foregoing which,
in the opinion of such attorney-in-fact, may be of benefit to,
in the best interest of, or legally required by or for, the
undersigned, it being understood that the documents executed
by such attorney-in-fact on behalf
of the undersigned pursuant to this Limited Power of Attorney
shall be in such form and shall contain such information and
disclosure as such attorney-in-fact may approve in such
attorneyin-fact's discretion.

The undersigned hereby grants to each such attorney-in-fact
full power and authority to do and perform any and every act
and thing whatsoever required, necessary or proper to be done
in the exercise of any of the rights and powers herein granted,
as fully to all intents and purposes as the undersigned might
or could do if personally present, with full power of
substitution or revocation, hereby ratifying and confirming
all that such attorney-in-fact, or such attorney-infact's
substitute or substitutes, shall lawfully do or cause to be
done by virtue of this Limited Power of Attorney and the
rights and powers herein granted.The undersigned acknowledges
that the foregoing attorneys-in-fact, in serving in such
capacity at the request and on the behalf of the undersigned,
are not assuming, nor is the Company assuming, any of the
undersigned's responsibilities to comply with, or any liability
for the failure to comply with, any provision of Section 16 of
the Exchange Act.This Limited Power of Attorney shall remain in
full force and effect until the undersigned
is no longer required to file Forms 3, 4 or 5 with respect to the
undersigned's holdings of and transactions in securities issued by
the Company, unless earlier revoked by the undersigned in a
signed writing delivered to each of the foregoing
attorneys-in-fact.IN WITNESS WHEREOF, the undersigned has executed
this Limited Power of Attorney as of this 16th day of June, 2021.
Signed and acknowledged:

Signature
/s/Yang Chiah Yee
Printed Name