PMIC (DC/DC, PowerPath, and Battery Charger)
A power management integrated circuit (PMIC) is a highly integrated device with many functional circuit blocks onboard. The high level of integration provides many benefits, including reduced printed circuit board (PCB) space, simpler design, faster time to market, and a reduced bill of material (BoM) cost. Analog Devices’ PMICs with battery chargers or USB power managers address battery charging and provide multiple system rails in portable products, all in a compact form factor. PowerPath control allows for seamless transitions and manages power flow between different input sources such as a wall adapter, USB port, and lithium battery while preferentially providing power to the system load. Highly efficient switch-mode power battery management enables higher charge currents from both wall adapter and USB-based power sources. For this family of PMICs, standalone operation, high charge current, and float voltage accuracy and thermal regulation are key battery charger features; additionally, dc-to-dc converters include both switching and linear regulators.
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