USB port power switch with 3 A continuous rating
The TPS2543RTER: The switch is controlled by an On/Off interface with non-inverting input logic.
Fault protection set for robust USB ports
Built-in fault protection includes adjustable current limiting, over-temperature shutdown, and under-voltage lockout (UVLO). The adjustable current limit lets you set the trip threshold to match the downstream USB connector or cable rating, reducing the need for a separate current-sense resistor or polyfuse. The single output is configured as a high-side switch with a 1:1 input-to-output ratio. No external Vcc supply is required for the switch control logic — the part is self-powered from the load rail.