Segment Information (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Sep. 23, 2012	Sep. 25, 2011
Segment Information [Abstract]
Number of reportable segments	6
Schedule of Segment Reporting Information [Line Items]
Revenues	$ 252,492	$ 302,741
Percentage of total (in hundredths)	100.00%	100.00%
Gross margin (in hundredths)	27.90%	37.90%
Customer Segments [Member]
Schedule of Segment Reporting Information [Line Items]
Revenues	250,344	300,973
Percentage of total (in hundredths)	99.10%	99.40%
Gross margin (in hundredths)	27.60%	37.60%
Power Management Devices [Member]
Schedule of Segment Reporting Information [Line Items]
Revenues	90,826	111,207
Percentage of total (in hundredths)	36.00%	36.70%
Gross margin (in hundredths)	20.40%	29.40%
Energy-Saving Products [Member]
Schedule of Segment Reporting Information [Line Items]
Revenues	44,455	76,058
Percentage of total (in hundredths)	17.60%	25.10%
Gross margin (in hundredths)	14.10%	41.40%
Automotive Products [Member]
Schedule of Segment Reporting Information [Line Items]
Revenues	28,838	28,900
Percentage of total (in hundredths)	11.40%	9.60%
Gross margin (in hundredths)	10.40%	31.50%
Enterprise Power [Member]
Schedule of Segment Reporting Information [Line Items]
Revenues	37,809	35,966
Percentage of total (in hundredths)	15.00%	11.90%
Gross margin (in hundredths)	38.00%	40.30%
HiRel [Member]
Schedule of Segment Reporting Information [Line Items]
Revenues	48,416	48,842
Percentage of total (in hundredths)	19.20%	16.10%
Gross margin (in hundredths)	55.50%	51.80%
Intellectual Property [Member]
Schedule of Segment Reporting Information [Line Items]
Revenues	$ 2,148	$ 1,768
Percentage of total (in hundredths)	0.90%	0.60%
Gross margin (in hundredths)	69.30%	100.00%