I have a customer currently evaluating the TPS24750. With a 1.5A load, they are measuring a drain-source drop of 30mV, which suggests a Rds(on) significantly higher than the value listed in the datasheet.
Here's a schematic snippet:
VCC = 3.3V, 12A current limit, Rsense = 3mOhm, Rimon = 1.27kOhm, Rset = 56.2