<SEC-DOCUMENT>0001415033-23-000017-index.html : 20230929
<SEC-HEADER>0001415033-23-000017.hdr.sgml : 20230929
<ACCEPTANCE-DATETIME>20230929164617
ACCESSION NUMBER:		0001415033-23-000017
CONFORMED SUBMISSION TYPE:	144
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20230929
DATE AS OF CHANGE:		20230929

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			MONOLITHIC POWER SYSTEMS INC
		CENTRAL INDEX KEY:			0001280452
		STANDARD INDUSTRIAL CLASSIFICATION:	SEMICONDUCTORS & RELATED DEVICES [3674]
		IRS NUMBER:				770466789
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		144
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	000-51026
		FILM NUMBER:		231296348

	BUSINESS ADDRESS:	
		STREET 1:		5808 LAKE WASHINGTON BLVD. NE
		CITY:			KIRKLAND
		STATE:			WA
		ZIP:			98033
		BUSINESS PHONE:		425-296-9956

	MAIL ADDRESS:	
		STREET 1:		5808 LAKE WASHINGTON BLVD. NE
		CITY:			KIRKLAND
		STATE:			WA
		ZIP:			98033

REPORTING-OWNER:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			BLEGEN THEODORE
		CENTRAL INDEX KEY:			0001415033

	FILING VALUES:
		FORM TYPE:		144

	MAIL ADDRESS:	
		STREET 1:		5808 LAKE WASHINGTON BLVD NE
		CITY:			KIRKLAND
		STATE:			WA
		ZIP:			98033

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Blegen Theodore
		DATE OF NAME CHANGE:	20071012
</SEC-HEADER>
<DOCUMENT>
<TYPE>144
<SEQUENCE>1
<FILENAME>primary_doc.xml
<TEXT>
Document 1 - file: primary_doc.html

Document 1 - RAW XML: primary_doc.xml

</DOCUMENT>
</SEC-DOCUMENT>