Earbuds

Samsung has formally announced two new all-in-one power management integrated circuits (PMIC) developed specifically for "True Wireless Stereo" (TWS) devices (a.k.a. earbuds). The highly integrated PMICs are being touted as allowing earbuds to be built with longer battery lives and better ergonomics. And because this is Samsung, the the first earbuds to use the new PMICs are fittingly Samsung’s own Galaxy Buds+. Samsung’s family of PMICs for TWS devices includes the MUA01 designed for charging cases, as well as the MUB01 for the earbuds themselves. Previously, power management solutions for earbuds have used 5 to 10 discrete components (see the image below), including switching chargers and discharge circuits, which take precious space. Samsung says that it has managed to integrate all of these components into...