IAUTN04S7N005ATMA1

IAUTN04S7N005ATMA1 is an Infineon OptiMOS 7 40 V N-channel automotive MOSFET in the PG-HSOF-8 (TOLL) leadless power package, supplied on tape and reel. Its 0.44 mΩ maximum RDS(on) at 10 V gate drive and 350 A rating serve high-current 12 V and 48 V nodes — mild-hybrid DC-DC stages, power steering, braking and battery disconnect switches — and its typical gate charge of 127 nC is the lowest of this four-code TOLL group, easing the driver stage. At 200 A the die dissipates about 17.6 W, against roughly 9.6 W for the 0.24 mΩ N003 code, so this is the step when the lowest resistance is not required. The 10 x 12 mm leadless footprint suits automated optical inspection, and the junction range reaches +175 °C. Selection advice: the 40 V TOLL ladder runs N003 (0.24 mΩ), N004 (0.38 mΩ) and this N005 — pick by how much conduction loss the thermal design can absorb; for top-cooled compact layouts the SSO10T IAUCN line is the alternative package. Infineon lists the part as active and preferred. Parameters verified against Infineon documentation.