Segment Information (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Jun. 29, 2014	Mar. 30, 2014	Dec. 29, 2013	Sep. 29, 2013	Jun. 30, 2013	Mar. 24, 2013	Dec. 23, 2012	Sep. 23, 2012	Jun. 29, 2014	Jun. 30, 2013	Jun. 24, 2012
Segment Reporting [Abstract]
Number of reportable segments									6
Schedule of Segment Reporting Information [Line Items]
Revenues	$ 297,587	$ 269,269	$ 269,965	$ 269,750	$ 276,453	$ 224,268	$ 223,822	$ 252,492	$ 1,106,571	$ 977,035	$ 1,050,588
Percentage of total (in hundredths)									100.00%	100.00%	100.00%
Gross margin (in hundredths)									36.10%	26.30%	32.40%
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues from unaffiliated customers, excluding royalties									1,105,422	973,976	1,048,999
Long-lived assets	435,741				482,426				435,741	482,426	526,207
Royalty Revenue									1,149	3,059	1,589
Consolidated Revenues [Member] | Distribution Customer 1 Concentration Risk [Member]
Concentration Risk [Line Items]
Concentration risk (in hundredths)									14.30%	12.80%	12.20%
Consolidated Revenues [Member] | Distribution Customer 2 Concentration Risk [Member]
Concentration Risk [Line Items]
Concentration risk (in hundredths)									10.70%	10.40%	10.90%
United States [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues from unaffiliated customers, excluding royalties									251,810	229,092	231,497
Long-lived assets	200,653				239,240				200,653	239,240	268,664
Asia [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues from unaffiliated customers, excluding royalties									646,102	562,886	613,706
Long-lived assets	101,794				95,564				101,794	95,564	79,249
Europe [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues from unaffiliated customers, excluding royalties									207,510	181,998	203,796
Long-lived assets	133,294				147,622				133,294	147,622	178,294
Customer Segments [Member]
Schedule of Segment Reporting Information [Line Items]
Revenues									1,105,422	973,976	1,048,999
Percentage of total (in hundredths)									99.90%	99.70%	99.80%
Gross margin (in hundredths)									36.00%	26.20%	32.30%
Power Management Devices [Member]
Schedule of Segment Reporting Information [Line Items]
Revenues									411,967	367,762	367,913
Percentage of total (in hundredths)									37.20%	37.60%	35.00%
Gross margin (in hundredths)									31.40%	21.70%	22.80%
Energy-Saving Products [Member]
Schedule of Segment Reporting Information [Line Items]
Revenues									209,450	176,386	243,340
Percentage of total (in hundredths)									18.90%	18.10%	23.20%
Gross margin (in hundredths)									31.10%	15.30%	34.90%
Automotive Products [Member]
Schedule of Segment Reporting Information [Line Items]
Revenues									149,646	124,695	113,353
Percentage of total (in hundredths)									13.50%	12.80%	10.80%
Gross margin (in hundredths)									29.50%	17.70%	22.30%
Enterprise Power [Member]
Schedule of Segment Reporting Information [Line Items]
Revenues									133,947	116,302	132,164
Percentage of total (in hundredths)									12.10%	11.90%	12.60%
Gross margin (in hundredths)									41.10%	32.50%	34.70%
HiRel [Member]
Schedule of Segment Reporting Information [Line Items]
Revenues									200,412	188,831	192,229
Percentage of total (in hundredths)									18.10%	19.30%	18.30%
Gross margin (in hundredths)									52.00%	46.70%	51.20%
Intellectual Property [Member]
Schedule of Segment Reporting Information [Line Items]
Revenues									$ 1,149	$ 3,059	$ 1,589
Percentage of total (in hundredths)									0.10%	0.30%	0.20%
Gross margin (in hundredths)									100.00%	78.40%	100.00%