Number of customers accounting for at least 10% of net receivables

0

10.00%

For fiscal year 2018, our two largest distributors were based in Asia.

A significant amount of the Company’s assembly and test operations are conducted by third-party contractors in China, Malaysia, Taiwan, Thailand, South Korea and the Philippines.

Concentration risk, percentage

20.00%

25.00%

28.00%

Concentration risk, percentage

66.00%

Concentration of Risk - Narrative (Details) - Customers	12 Months Ended
Concentration of Risk - Narrative (Details) - Customers	Jan. 28, 2018	Jan. 29, 2017	Jan. 31, 2016
Accounts receivable
Minimum concentration risk threshold	10.00%
Number of customers accounting for at least 10% of net receivables	0	0
Net sales revenue
Minimum concentration risk threshold	10.00%
Two largest distributors in Asia \| Net sales revenue
Concentration risk, geographic	For fiscal year 2018, our two largest distributors were based in Asia.
Supplier concentration risk [Member] \| Cost of silicon wafers [Member]
Concentration risk, geographic	A significant amount of the Company’s assembly and test operations are conducted by third-party contractors in China, Malaysia, Taiwan, Thailand, South Korea and the Philippines.
Third-party foundry in china \| Cost of silicon wafers [Member]
Concentration risk, percentage	20.00%	25.00%	28.00%
Authorized distributors [Member] \| Net sales revenue
Concentration risk, percentage	66.00%