Dialog Semiconductor Plc is an Anglo-German semiconductor-based system designer and manufacturer. The company is headquartered in the United Kingdom in Reading, with a global sales, R&D and marketing organization. Dialog creates highly integrated application-specific standard product (ASSP) and application-specific integrated circuit (ASIC) mixed-signal integrated circuits (ICs), optimised for smartphones, computing, Internet of Things devices, LED solid-state lighting (SSL), and smart home applications.

Dialog operates a fabless business model, but maintains its own test and physical laboratories in Kirchheim. Since 2021, the company is a subsidiary of Renesas Electronics.

Dialog Semiconductor was created in May 1985 as IMP (UK) Limited, the European subsidiary of U.S.-based International Microelectric Products, Inc. In late 1989, Daimler-Benz (now Daimler AG) acquired IMP (UK) and folded the business into subsidiary Temic Telefunken Microelectric GmbH. In March 1998, Apax Partners, Adtran, and Ericsson provided funding for the subsidiary (then named Dialogue Semiconductors) to separate from Daimler and form an independent company.^{[better source needed]}

Dialog began trading as a public company on the Frankfurt Stock Exchange on 18 September 1999.

In 2005, Jalal Bagherli was appointed as Dialog's CEO. He had previously been CEO of Alphamosaic, a video processing chip specialist acquired by Broadcom in 2004.

Since 2007, Dialog Semiconductor has been a supplier of power management integrated circuits (PMICs) for the Apple iPhone, iPad, and Watch. Apple comprised 74% of Dialog's sales in 2016.

Dialog has made numerous acquisitions including:

At that point, Jalal Bagherli held more than 500,000 Dialog shares.