In a digital device, activity of (or load on) one or more processors, peripherals and memory buses are measured. A power management framework operated in the digital device bases power settings in the digital device on the measured loads, and accordingly issues power management commands to change power consumption states of one or more of the processors, peripherals and memory buses. Some user applications (termed power aware applications) in the digital device provide a number identifying their application type to the power management framework, which thereby determines the resources required by the application. The power management commands issued by the power management framework ensure provision of the corresponding resources to the application, while also targeting minimization of power consumption in the digital device. In an embodiment, the digital device corresponds to a mobile phone.