The TPS2541ARTET: At 2.5 A output, that resistance drops about 180 mV across the switch — well within the 5 V nominal bus budget even after a connector and cable drop. The part integrates adjustable current limiting, over-temperature protection, and under-voltage lockout, so the VBUS rail gets three layers of fault coverage without external supervisory circuitry.
2.5 A output — covers BC 1.2 and Apple 2.4 A charging profiles
The 2.5 A maximum output current supports a single USB port. The current limit is adjustable via an external resistor. The 1:1 input-to-output ratio passes the full input current to the load when enabled.
The wide temp grade also simplifies qualification for automotive infotainment and telematics units that require AEC-Q100-equivalent thermal margin.
16-WQFN (3x3 mm) — rework and footprint considerations
The 16-WQFN with exposed pad is a 3x3 mm package — small enough to fit behind a stacked USB connector on a four-layer board. Rework is feasible with hot air if the board has good solder mask between the pad and adjacent vias.
