Around 75 percent of Dialog's business is supplying power-management chips to Apple, which warned in November of slow year-end sales and on Jan. 3 issued its first sales warning in 12 years, blaming weaker iPhone sales in China.
Shares in Dialog, which analysts reckon derives more than half of its revenue from Apple, lost more than a fifth last week following a media report that Apple could design its own power management integrated circuits (PMICs) for use in iPhones as soon as 2018.