That on-resistance sets the conduction loss floor at 25 °C junction — at 4 A the voltage drop is about 64 mV, which keeps the pass-element dissipation under 260 mW even before the copper pad on the 8-WSON (2x2 mm) package sinks the heat.
Automotive temp grade and split-rail supply
That split-rail architecture is common in automotive ECUs where the MCU core runs at a lower voltage than the peripheral power bus.
Slew-rate controlled switching and package details
The switch includes slew-rate control, which limits inrush current during turn-on — useful when the load includes a large input capacitor that would otherwise trigger the upstream supply's overcurrent protection. The output is an N-channel MOSFET configured as a high-side switch with a non-inverting On/Off interface. The 8-WFDFN package with wettable flank (8-WSON 2x2 mm) supports automated optical inspection (AOI) of the solder joints, a requirement for automotive assembly lines.