The PD77020 PoE power management controller provides multi-port PoE functions, such as, port mapping (port matrix), port priority, port status, and system power management. The PD77020 device can be used in conjunction with PD77728 seventh-generation PoE manager from Microchip. The PD77020 device is based on a Microchip SAMD21 controller and is packaged in a 5 mm × 5 mm 32-pin QFN package.