P-channel load switch with a 20 mOhm ceiling
Gate charge is 60 nC at 10 V, so the driver doesn't need a monster gate current, but the 2320 pF input capacitance at 15 V means the gate-drive trace should be kept short and the source impedance low to avoid ringing.
Where the 30 V and 150 °C ratings matter
The 30 V Vdss covers 12 V and 24 V industrial rails, 2S through 6S Li-ion battery stacks, and automotive nominal 12 V systems with load-dump margin. The 2.5 W power dissipation at 25 °C ambient is the package limit in free air; if you are pulling 8 A continuously, you need the PCB copper to sink the heat, or the junction will climb fast. At 8 A and 20 mOhm, conduction loss is 1.28 W — that leaves about 1.2 W of headroom before you hit the package ceiling at 25 °C ambient, so the thermal design is tight but workable with a decent ground-plane pour.