1.5 A high-side load switch for automotive rails
The TPS22919QDCKRQ1 is a single-channel, high-side N-channel MOSFET load switch from TI's automotive-qualified series. It switches 1.5 A continuous from a 1.6 V to 5.5 V input rail — covering 1.8 V, 3.3 V, and 5 V automotive supplies without needing a separate bias voltage (Vcc/Vdd not required). The 89 mOhm typical Rds(on) at 1.5 A keeps conduction losses under 200 mW at full load, which the SC-70-6 package can dissipate without a thermal pad as long as the copper area on the PCB is adequate.
Built-in protection for harsh environments
On-chip over-temperature and short-circuit protection let the switch self-limit during a fault without external sense resistors. The slew-rate controlled turn-on limits inrush current into capacitive loads — useful when switching a 10 µF to 100 µF bypass bank on an ECU module. The load-discharge feature pulls the output to ground when the switch is off, preventing a floating output that could keep downstream logic in an undefined state during power sequencing.
Active production, AEC-Q100, SC-70-6 footprint
Supplied in tape-and-reel in the SC-70-6 package, which is a 2.0 mm × 2.1 mm body with 0.65 mm pin pitch — a common footprint that fits into compact automotive modules without consuming board space.