Load switch with integrated reverse-current block
The TPS22913BYZVT is a single-channel high-side P-channel load switch from Texas Instruments, designed for general-purpose power rail switching. The typical 60 mOhm Rds(on) means at 2 A continuous output the conduction loss sits around 240 mW — the 4-DSBGA package relies on the PCB copper for thermal dissipation, so the pad layout under the device directly sets the junction temperature.
Built-in protection and controlled turn-on
The switch includes reverse-current protection and undervoltage lockout (UVLO) — if the output voltage exceeds the input, the internal FET blocks backflow, which saves an external Schottky in battery-powered designs. The slew-rate controlled turn-on limits inrush current into capacitive loads; the On/Off interface is non-inverting, so a logic-high on the enable pin turns the switch on. No external Vcc/Vdd supply is needed — the gate drive is derived from the input rail.
Active production — order against BOM
The base product number is TPS22913; the BYZVT suffix denotes the 4-DSBGA package and tape-and-reel / cut-tape delivery. Sourced per RFQ against your BOM quantity — confirm the package dimensions (0.88x0.88 mm) align with your PCB land pattern before committing.