SIGNIFICANT ACCOUNTING POLICIES AND RECENT ACCOUNTING PRONOUNCEMENTS (Policies)	6 Months Ended
Jun. 30, 2026
Accounting Policies [Abstract]
Principles of Consolidation	The condensed consolidated financial statements include the accounts of Power Integrations, Inc., a Delaware corporation (the “Company”), and its wholly owned subsidiaries. Significant intercompany accounts and transactions have been eliminated in consolidation. Certain prior period amounts have been reclassified to conform to current year presentation. These reclassifications had no effect on the reported results of operations. While the financial information furnished is unaudited, the condensed consolidated financial statements included in this report reflect all adjustments (consisting only of normal recurring adjustments) that the Company considers necessary for the fair presentation of the results of operations for the interim periods covered and the financial condition of the Company at the date of the interim balance sheet in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”). The results for interim periods are not necessarily indicative of the results for the entire year. The condensed consolidated financial statements should be read in conjunction with the Company’s consolidated financial statements and the notes thereto for the year ended December 31, 2025, included in its Form 10-K filed on February 6, 2026, with the Securities and Exchange Commission.
Significant Accounting Policies and Estimates and Recent Accounting Pronouncements	Significant Accounting Policies and Estimates No material changes have been made to the Company’s significant accounting policies disclosed in Note 2, Significant Accounting Policies and Recent Accounting Pronouncements, of the Company’s financial statements set forth in Item 8 of the Company’s Annual Report on Form 10-K, filed on February 6, 2026, for the year ended December 31, 2025. Recent Accounting Pronouncements In November 2024, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2024-03, Income Statement – Reporting Comprehensive Income – Expense Disaggregation Disclosures (Subtopic 220-40) which requires additional disclosure of certain costs and expenses, including inventory purchases, employee compensation, selling expense, and depreciation expense within the notes to financial statements. The guidance is effective for annual periods beginning after December 15, 2026, and interim periods within fiscal years beginning after December 15, 2027. The Company is currently evaluating the impact that the updated standard will have on its financial statement disclosures. In September 2025, the FASB issued ASU 2025-06, Intangibles–Goodwill and Other–Internal-Use Software (Subtopic 350-40) which amends certain aspects of the accounting for and disclosure of software costs. The guidance is effective for annual reporting periods beginning after December 15, 2027, and interim periods within fiscal years beginning after December 15, 2027. The Company is currently evaluating the impact that the updated standard will have on its financial statement disclosures.

SIGNIFICANT ACCOUNTING POLICIES AND RECENT ACCOUNTING PRONOUNCEMENTS (Policies)

6 Months Ended

Jun. 30, 2026

The condensed consolidated financial statements include the accounts of Power Integrations, Inc., a Delaware corporation (the “Company”), and its wholly owned subsidiaries. Significant intercompany accounts and transactions have been eliminated in consolidation. Certain prior period amounts have been reclassified to conform to current year presentation. These reclassifications had no effect on the reported results of operations.

While the financial information furnished is unaudited, the condensed consolidated financial statements included in this report reflect all adjustments (consisting only of normal recurring adjustments) that the Company considers necessary for the fair presentation of the results of operations for the interim periods covered and the financial condition of the Company at the date of the interim balance sheet in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”). The results for interim periods are not necessarily indicative of the results for the entire year. The condensed consolidated financial statements should be read in conjunction with the Company’s consolidated financial statements and the notes thereto for the year ended December 31, 2025, included in its Form 10-K filed on February 6, 2026, with the Securities and Exchange Commission.

Significant Accounting Policies and Estimates and Recent Accounting Pronouncements

Significant Accounting Policies and Estimates

No material changes have been made to the Company’s significant accounting policies disclosed in Note 2, Significant Accounting Policies and Recent Accounting Pronouncements, of the Company’s financial statements set forth in Item 8 of the Company’s Annual Report on Form 10-K, filed on February 6, 2026, for the year ended December 31, 2025.

Recent Accounting Pronouncements

In November 2024, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2024-03, Income Statement – Reporting Comprehensive Income – Expense Disaggregation Disclosures (Subtopic 220-40) which requires additional disclosure of certain costs and expenses, including inventory purchases, employee compensation, selling expense, and depreciation expense within the notes to financial statements. The guidance is effective for annual periods beginning after December 15, 2026, and interim periods within fiscal years beginning after December 15, 2027. The Company is currently evaluating the impact that the updated standard will have on its financial statement disclosures.

In September 2025, the FASB issued ASU 2025-06, Intangibles–Goodwill and Other–Internal-Use Software (Subtopic 350-40) which amends certain aspects of the accounting for and disclosure of software costs. The guidance is effective for annual reporting periods beginning after December 15, 2027, and interim periods within fiscal years beginning after December 15, 2027. The Company is currently evaluating the impact that the updated standard will have on its financial statement disclosures.