TI technical support.
Does this Dual Linear Regulator (TPS7A8801RTJ) require a diode from its output(s) to Input(s) to provide 'Reverse Current Protection'?
The Dual Linear Regulator inputs are fed from a switching regulator which has pull-up and pull-down FET drive on its outputs. Therefore the Dual Linear Regulator inputs are likely to have a connection to ground during power down.
Could the reverse current discharge (from the outputs to the inputs) during power down damage the Dual Linear Regulator?