Segment Information (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Jun. 30, 2013	Mar. 24, 2013	Dec. 23, 2012	Sep. 23, 2012	Jun. 24, 2012	Mar. 25, 2012	Dec. 25, 2011	Sep. 25, 2011	Jun. 30, 2013	Jun. 24, 2012	Jun. 26, 2011
Segment Reporting [Abstract]
Number of reportable segments									6
Schedule of Segment Reporting Information [Line Items]
Revenues	$ 276,453	$ 224,268	$ 223,822	$ 252,492	$ 269,675	$ 248,094	$ 230,078	$ 302,741	$ 977,035	$ 1,050,588	$ 1,176,577
Percentage of total (in hundredths)									100.00%	100.00%	100.00%
Gross margin (in hundredths)									26.30%	32.40%	39.50%
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues from unaffiliated customers, excluding royalties									973,976	1,048,999	1,169,156
Long-lived assets	482,426				526,207				482,426	526,207	507,178
Royalty Revenue									3,059	1,589	7,421
Consolidated Revenues [Member] | Distribution Customer 1 Concentration Risk [Member]
Concentration Risk [Line Items]
Concentration risk (in hundredths)									12.80%	12.20%	12.70%
Consolidated Revenues [Member] | Distribution Customer 2 Concentration Risk [Member]
Concentration Risk [Line Items]
Concentration risk (in hundredths)									10.40%	10.90%	11.80%
United States [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues from unaffiliated customers, excluding royalties									229,092	231,497	254,593
Long-lived assets	239,240				268,664				239,240	268,664	306,741
Asia [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues from unaffiliated customers, excluding royalties									562,886	613,706	674,654
Long-lived assets	95,564				79,249				95,564	79,249	44,695
Europe [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues from unaffiliated customers, excluding royalties									181,998	203,796	239,909
Long-lived assets	147,622				178,294				147,622	178,294	155,742
Customer Segments [Member]
Schedule of Segment Reporting Information [Line Items]
Revenues									973,976	1,048,999	1,169,156
Percentage of total (in hundredths)									99.70%	99.80%	99.40%
Gross margin (in hundredths)									26.20%	32.30%	39.10%
Power Management Devices [Member]
Schedule of Segment Reporting Information [Line Items]
Revenues									367,762	367,913	456,764
Percentage of total (in hundredths)									37.60%	35.00%	38.80%
Gross margin (in hundredths)									21.70%	22.80%	31.60%
Energy-Saving Products [Member]
Schedule of Segment Reporting Information [Line Items]
Revenues									176,386	243,340	275,044
Percentage of total (in hundredths)									18.10%	23.20%	23.40%
Gross margin (in hundredths)									15.30%	34.90%	44.70%
Automotive Products [Member]
Schedule of Segment Reporting Information [Line Items]
Revenues									124,695	113,353	112,174
Percentage of total (in hundredths)									12.80%	10.80%	9.50%
Gross margin (in hundredths)									17.70%	22.30%	29.90%
Enterprise Power [Member]
Schedule of Segment Reporting Information [Line Items]
Revenues									116,302	132,164	134,627
Percentage of total (in hundredths)									11.90%	12.60%	11.50%
Gross margin (in hundredths)									32.50%	34.70%	44.10%
HiRel [Member]
Schedule of Segment Reporting Information [Line Items]
Revenues									188,831	192,229	190,547
Percentage of total (in hundredths)									19.30%	18.30%	16.20%
Gross margin (in hundredths)									46.70%	51.20%	51.20%
Intellectual Property [Member]
Schedule of Segment Reporting Information [Line Items]
Revenues									$ 3,059	$ 1,589	$ 7,421
Percentage of total (in hundredths)									0.30%	0.20%	0.60%
Gross margin (in hundredths)									78.40%	100.00%	100.00%