SLVSB64I November 2011 – March 2018 TPS65217
The LDO_PGOOD pin is a push-pull output that is driven to a high level when either the LDO1 regulator or the LDO2 regulator is enabled and in regulation. The LDO_PGOOD pin is pulled low when both LDO regulators are disabled or one is enabled but has encountered a fault. A typical fault is an output short or overcurrent condition. In normal operation, the LDO_PGOOD pin is high in the ACTIVE and SLEEP states and low in the RESET and OFF states.