Figure 3-78 to Figure 2-12 show the efficiency and power loss graphs for the 5V pre-regulator, core rail regulator, as well as all four PMIC regulators. Figure 13 and Figure 14 show the current sharing of the core rail between the two phases, as well as the current-sharing tolerances over load.

Figure 3-78 and Figure 2-2 includes pre-regulator buck efficiency measurements taken with front-end protection in the circuit and pre-regulator buck isolated from downstream rails.

The graphs in Figure 2-3 and Figure 2-4 show 2-phase core rail buck core rail regulators isolated from both the 5V pre-regulator, as well as the PMIC regulators. The efficiency values displayed are calculated after negating the 1mΩ R_SNS power losses.

Figure 2-5 through Figure 2-12 include data taken from a different board with precisely the same PMIC configurations, operating conditions, and inductors used for PMP23227.