10 A load switch with 4 mOhm on-resistance
The TPS22998RYZR is a single-channel, high-side N-channel load switch from Texas Instruments, rated for a continuous output current of 10 A with a typical Rds(on) of 4 mOhm. That on-resistance at 5.5 V load means conduction losses stay under 0.4 W at full current — the 10-WQFN-HR (1.5x2) package's exposed thermal pad needs a solid copper pour to keep the junction below the 105 °C ceiling.
Supply range and control interface
The switch is controlled by a single On/Off logic input (non-inverting), and no external Vcc supply is required — the gate drive is self-biased from the input rail. Built-in features include slew-rate controlled turn-on to limit inrush current and an active load discharge path that pulls the output down when the switch is off, preventing floating rails during power sequencing.
Protection and temperature grade
Over-temperature fault protection shuts off the switch if the die exceeds the thermal limit — no overcurrent or reverse-current protection, so the load must be fused or current-limited externally if the application sees hard shorts.
ROHS3 compliant.