Four-channel I²C load switch for sequenced power rails
The Texas Instruments TPS22994RUKT is a 4-output, I²C-controlled high-side load switch in a 20-WQFN (3x3 mm) package. Each of the four N-channel switches can deliver up to 1 A from a load supply between 1 V and 3.6 V, making it suited for sequencing and gating core, I/O, and memory rails in multi-voltage designs.
Slew-rate control and I²C programmability
The part integrates slew-rate controlled turn-on, which limits inrush current during hot-plug or power-up sequencing — a practical benefit when switching capacitive loads on a shared supply bus. The I²C interface allows each channel to be turned on or off independently, and the slew rate can be programmed per channel to match downstream load capacitance.