It delivers up to 3 A from a 4.5 V to 6.5 V load supply through a 47 mOhm typical N-channel MOSFET, with an on/off interface and non-inverting input. The part integrates adjustable current limiting, over-voltage protection, over-temperature shutdown, and under-voltage lockout — covering the fault conditions a USB port sees in an automotive infotainment or telematics ECU.
The 47 mOhm typical on-resistance at 3 A produces a voltage drop and power dissipation inside the 16-WQFN 3x3 mm package.
Fault protection set — what trips and what doesn't
Adjustable current limiting lets the designer set the threshold via an external resistor.
Package and placement — what the reflow profile needs
The 16-WQFN 3x3 mm with exposed pad is a standard QFN footprint. The pad on the bottom is the primary thermal path and the electrical ground connection.