1 Features

1• Low-Input Voltage: 1.0 V to 3.6 V

• Ultra-Low ON-State Resistance

– rON = 90 mΩ at VIN = 3.6 V

– rON = 100 mΩ at VIN = 2.5 V

– rON = 114 mΩ at VIN = 1.8 V

– rON = 172 mΩ at VIN = 1.2 V

• 500-mA Maximum Continuous Switch Current

• Ultra-Low Quiescent Current: 82 nA at 1.8 V

• Ultra-Low Shutdown Current: 44 nA at 1.8 V

• Low Control Input Thresholds Enable Use of 1.2-

V/1.8-V/2.5-V/3.3-V Logic

• Controlled Slew Rate to Avoid Inrush Current:

220 μs tr

• ESD Performance Tested Per JESD 22

– 2000-V Human Body Model low(

A114-B, Class II)

– 1000-V Charged-Device Model (C101)

• Four-Terminal Wafer-Chip-Scale Package

(WCSP)

– 0.9 mm × 0.9 mm,

0.5-mm Pitch, 0.5-mm Height

2 Applications

• Personal Digital Assistants (PDAs)

• Cellular Phones

• GPS Devices

• MP3 Players

• Digital Cameras

• Peripheral Ports

• Portable Instrumentation

• RF Modules

3 Description

TPS22906 device is an ultra-small, low ON-state

resistance (rON) load switch with controlled turn on.

The device contains a P-channel MOSFET that

operates over an input voltage range of 1.0 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. A 120-Ω on-chip load resistor is added for output quick discharge when the switch

is turned off. TPS22906 is available in a space-saving

4-terminal WCSP with 0.5-mm pitch (YZV). The

device is characterized for operation over the free-air

temperature range of –40°C to 85°C.