1 Features

1• Integrated P-Channel Load Switch

• Input Voltage: 1 V to 3.6 V

• 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

– tR = 105 μs at VIN = 3.6V

• Four Terminal Wafer-Chip-Scale Package

(WCSP)

– Nominal Dimensions - See Addendum for

Details

– 0.9 mm × 0.9 mm, 0.5-mm Pitch, 0.6-mm

Height

• Quick Output Discharge (QOD)

2 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

3 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.