The Power-Good (PG) pin is bidirectional and has
two functions:
- In a standalone configuration, and in the primary device of a
stacked configuration, the PG pin is an open-drain output
that indicates the status of the converter or stack.
- In a secondary device of a stacked configuration, the PG pin is
an input that indicates when the soft-start sequence is
complete and all converters in the stack can change from DCM
switching to CCM switching.