Voltage has a large effect on both static and dynamic power. Active control of the voltage level ensures the desired voltage is applied to the device.
- Use switching regulators.
Switching regulators are more power efficient than linear regulators, at the expense of requiring a higher component count.
- Use adjustable regulators.
Ensure voltage is as close as possible to the device and to the highest consuming device if the same supply powers multiple devices.
- Select regulators with tight tolerances.