The TPS22922BYFPR: Typical on-resistance is 14 mOhm at 2 A maximum continuous output current.
The load voltage range spans 0.9 V to 3.6 V, which directly answers the 1.8 V suitability question — yes, it handles 1.8 V rails cleanly. The switch is controlled by an On/Off interface (non-inverting input), and no separate Vcc supply is required; the part is self-powered from the load voltage.
Load discharge and slew rate control — why they matter
The part integrates a load-discharge resistor that pulls the output to ground when the switch is off, preventing floating output nodes that could cause erratic behaviour in downstream logic. The slew-rate controlled turn-on limits inrush current, which is critical when switching capacitive loads — without it, the sudden current spike can droop the upstream rail or trigger a supply supervisor.
6-DSBGA — tiny package, layout-aware assembly
Housed in a 6-bump DSBGA (0.5 mm pitch), the package footprint is about 1.2 mm × 0.8 mm — board space is minimal, but the fine pitch demands a well-controlled solder-paste stencil and a reflow profile suited to lead-free SAC305.