The IRF9540NPBF: On-resistance is 117 mOhm maximum at 11 A with 10 V gate drive. The 140 W power dissipation rating can handle the conduction loss with an adequate heatsink. Gate charge totals 97 nC at 10 V, and input capacitance is 1300 pF at 25 V — a moderate drive requirement that a standard gate-driver IC or a discrete totem-pole can meet for switching frequencies up to a few tens of kHz.
The TO-220AB package with a metal tab allows direct heatsink mounting; the 140 W dissipation ceiling assumes the case is held at 25 °C — real-world derating follows the thermal resistance junction-to-case.
