What this 55 V N-channel OptiMOS brings to the board
It comes in the PG-TO252-3-11 (DPak / TO-252) surface-mount package, a common footprint for medium-power switching and linear applications. With a gate charge of 10 nC at 10 V, the switching losses stay manageable for moderate-frequency converters and load switches.
Input capacitance of 293 pF at 25 V drain-source is on the lower side for a 55 V / 17 A FET, which helps keep switching edges clean and reduces cross-conduction in half-bridge topologies.
Package and mounting — TO-252 footprint realities
The PG-TO252-3-11 (DPak) is a three-lead surface-mount package with a large tab for thermal dissipation. The tab is electrically connected to the drain, so the PCB copper plane must handle drain potential — no shared ground plane without isolation.
ROHS3 compliant.