Texas Instruments TPS22908YZTR

Description
The TPS22908 is a small, low Ron load switch with controlled turn on. The device contains a P-channel MOSFET that operates over an input voltage range of 1 V to 3.6 V. The switch is controlled by an on/off input (ON), which is capable of interfacing directly with low-voltage control signals.
The TPS22908 is available in a space-saving 4-terminal WCSP with 0.5 mm pitch (YZT). The device is characterized for operation over the free-air temperature range of -40°C to 85°C.

Features
Integrated P-Channel Load Switch
1 A Maximum Continuous Switch Current
On-Resistance (Typical Values)
RON 28 mΩ at VIN = 3.6 V
RON 33 mΩ at VIN = 2.5 V
RON 42 mΩ at VIN = 1.8 V
RON 70 mΩ at VIN = 1.2 V
Maximum Quiescent Current = 1 μA
Maximum Shutdown Current = 1 μA
Low Control Input Thresholds Enable Use of 1.2-V, 1.8-V, 2.5-V, and 3.3-V Logic
Controlled Slew Rate to Avoid Inrush Currents
105 μs at VIN = 3.6 V
Four Terminal Wafer-Chip-Scale Package (WCSP)
Nominal Dimensions - See Addendum for Details
0.9 mm x 0.9 mm, 0.5-mm Pitch, 0.6-mm Height
Quick Output Discharge (QOD)

Applications
Battery Powered Equipment
Portable Industrial Equipment
Portable Medical Equipment
Portable Media Players
Point of Sale Terminal
GPS Devices
Digital Cameras
Portable Instrumentation
Smartphones and Tablets