SLVSD02D March 2015 – June 2019 TPS65982
The PP_5V0 path is unidirectional, sourcing power from PP_5V0 to VBUS only. When the switch is on, the protection circuitry limits reverse current from VBUS to PP_5V0. Figure 21 shows the I-V characteristics of the reverse current protection feature. Figure 21 and the reverse current limit can be approximated using Equation 2.