https://www.reuters.com/article/us-apple-power-chip-dialog/dialog-shares-tank-on-report-apple-to-design-own-power-chips-idUSKBN1DU1T0

Apple is designing its own power-management chips for use in iPhones as early as 2018, the Nikkei business daily reported on Thursday, triggering a more than 20 percent slide in shares of supplier Dialog Semiconductor.