9.2 mOhm on-resistance — what it buys the rail
The TPS22925CNYPHR: That on-resistance number is the headline spec: at 3 A output, conduction loss sits at roughly 83 mW at 25°C junction, which keeps the 6-DSBGA package cool enough to run without a heatsink in most board layouts.
Reverse current protection and slew rate control
Fault protection includes reverse current blocking — if the output rail stays high after the input drops, the switch prevents back-feed into the upstream supply. That matters for multi-rail systems where a downstream bulk cap holds charge longer than the input bus. The slew-rate-controlled turn-on limits inrush current during hot-plug or power sequencing, which avoids pulling the upstream regulator into current limit. The switch is non-inverting and uses a simple On/Off interface; no external Vcc/Vdd bias rail is required, so it can be driven directly from a GPIO.
The 6-DSBGA package requires a controlled SMT profile and a clean PCB surface finish.