Apple may be working on its own power management integrated circuits
<p>German chipmaker Dialog Semiconductor’s stock has tumbled in Frankfurt, currently down 24.5%, as private bank Bankhaus Lampe downgrades the German chipmaker to Sell on risks that it might <a target="_blank" href="http://www.reuters.com/article/us-dialog-apple-idUSKBN17D0VF" rel="noopener noreferrer">lose a crucial supplier deal</a> with Apple.</p>