TPS22971YZPR

• Single-Channel Load switch, 3 A Rating
• 6.7 Milliohm on-Resistance
• Up to 3.6 V Operation
• Adjustable Rise Time for Inrush Current Control
• Power-Good Output and Output Discharge Function
• 8-Ball DSBGA package, 1.25 Mm X 2.25 Mm X 0.5 Mm
• -40 C to 85 C Operating Temperature range, RoHS Compliant

The Texas Instruments TPS22971YZPR is a single-channel 3 A load switch rated to 3.6 V with 6.7 milliohm on-resistance, supplied in an 8-ball DSBGA package measuring 1.25 mm x 2.25 mm x 0.5 mm. It integrates adjustable rise time control, a power-good indicator, and output discharge. Adjustable rise time is the key feature of a controlled load switch: slewing the output slowly limits the inrush current that a large downstream capacitance would otherwise draw, preventing input rail droop when a subsystem is powered up. The TPS22971YZPR is specified from -40 C to 85 C and is RoHS compliant.

Load switches are used to power-gate individual subsystems so that idle blocks draw no leakage current, which is central to battery life in phones, tablets, wearables, cameras and portable medical devices. Typical switched loads are display and camera modules, wireless radios, audio subsystems, sensor rails and memory. The power-good signal lets the host sequence dependent rails correctly, and output discharge ensures the rail collapses to zero rather than floating when the switch opens. The 0.5 mm DSBGA profile and 6.7 milliohm resistance make it suited to very thin, height-constrained assemblies carrying meaningful current. Typical buyers are portable and consumer device hardware designers, wearable and medical device OEMs, and module manufacturers building power-gated subsystems.