Rds(on) at junction temperature — the real conduction loss number
The IPB180N04S4H0ATMA1 lists a maximum Rds(on) of 1.1 mOhm at 100 A with 10 V gate drive, but that figure is specified at 25 °C junction. At a 125 °C junction temperature — typical in a high-current motor drive or synchronous rectifier — the on-resistance roughly doubles. The buyer should budget for an effective 2.2 mOhm or more at operating temperature and size the PCB copper area accordingly.
Gate charge — what it costs to switch 180 A
Total gate charge is 225 nC at 10 V. For a 100 kHz switching frequency, the gate driver must deliver an average current of 22.5 mA just to charge and discharge the gate capacitance. The 17940 pF input capacitance at 25 V drain-source confirms this is a large-die device — the driver output stage needs enough peak current to avoid excessive switching loss during the Miller plateau.
Package and thermal path
The PG-TO263-7-3 package (D²Pak with 6 leads plus tab) is a surface-mount power package.
Lifecycle and compliance
It is ROHS3 compliant. No official second-source or direct replacement is listed in the Infineon cross-reference, so dual-sourcing requires qualification of an electrically similar part from another vendor.