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TPS7A49: Poor load regulation

Part Number: TPS7A49


Input is 16.5V from the output of a switcher which has good load regulation.  For some reason I'm getting a 400mV drop out of this LDO from 15.2V down to 14.8V when I load the output with 100mA.  I can't see anything obvious.  The FB is about 0.75ohms at DC so it will drop 75mV, but not enough to hit the drop out.  My -15V LDO works fine, but its just the +15V that has this problem.  Layouts for both supplies are similar and optimal (short distances to bypass).

Any ideas?  Did I miss a detail in the data