Do you have any figures about green idle power saving?
The supply current specifictions include the green idle power saving. At light
the green idle mode reduces the oscillator frequency resulting in reduced
supply current (1.5mA/4.5mA at no load). At heavier loads the oscillator
frequency increases and supply current also increases (35mA at RL = 3kOhms).
There are also a number of TPCs which show the effect of increased load
capacitance and increased data rate on supply current.