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.