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ADP2138 Current Limit Details

Reading the ADP2138 datasheet, I see a description of the IC having current limit circuitry, but I would like to know what that circuitry does to limit the current. Does the circuitry shut down the regulator? If not, how does it source the additional current? Because the IC does not have a PGOOD line, I'm wondering what other methods could be used to know whether the circuit could have entered a state where the output is short circuited by the load (aside from sampling and measuring the output with an ADC).