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1 Features

1? Input Voltage Range: 0.75 V to 3.6 V

? Integrated Load Switch

? Integrated Pass-FET rDSON = 2 mΩ (Typ) at 3.6 V

? Typical ON-Resistance

– rON = 5.3 mΩ at VIN = 3.6 V

– rON = 5.4 mΩ at VIN = 2.5 V

– rON = 5.5 mΩ at VIN = 1.8 V

– rON = 5.8 mΩ at VIN = 1.2 V

– rON = 6.1 mΩ at VIN = 1.05 V

– rON = 7.3 mΩ at VIN = 0.75 V

? CSP-8 Package 0.9 mm × 1.9 mm, 0.5 mm Pitch

? 4-A Maximum Continuous Switch Current

? Shutdown Current 5.5-μA Max

? ON-Logic Available in Both Active High/Low:

– TPS22920 is Active High

– TPS22920L is Active Low

? Low Threshold Control Input

? Controlled Slew-Rate to Avoid Inrush Current

? Quick Output Discharge Resistor

? ESD Performance Tested Per JESD 22

– 4000-V Human-Body Model

(A114-B, Class II)

– 1000-V Charged-Device Model (C101)

2 Applications

? Notebook / Netbook Computer

? Tablet PC

? PDAs / Smartphones

? GPS Navigation Devices

? MP3 Players

3 Description

The TPS22920x is a small, space-saving load switch

with controlled turn on to reduce inrush current. The

device contains a N-channel MOSFET that can

operate over an input voltage range of 0.75 V to 3.6

V and switch currents up to 4 A. An integrated charge

pump biases the NMOS switch in order to achieve a

minimum switch ON resistance (rON). The switch is

controlled by an on/off input (ON), which is capable of

interfacing directly with low-voltage control signals.

The TPS22920x has a 1250-Ω on-chip resistor for

quick output discharge when the switch is turned off

which insures that the output is not left floating.

The TPS22920x has an internally controlled rise time

in order to reduce inrush current.

The TPS22920x is available in an ultra-small, spacesaving

8-pin CSP package and is characterized for

operation over the free-air temperature range of

–40°C to 85°C.