TPS22920x 3.6-V, 4-A, 5.3-mΩ On-Resistance, Integrated Load Switch with Controlled Turn-on

1 Features

• Input Voltage Range: 0.75 V to 3.6 V
• Integrated Load Switch
• Integrated Pass-FET r_DSON = 2 mΩ (Typ) at 3.6 V
• Typical ON-Resistance
  • r_ON = 5.3 mΩ at V_IN = 3.6 V
  • r_ON = 5.4 mΩ at V_IN = 2.5 V
  • r_ON = 5.5 mΩ at V_IN = 1.8 V
  • r_ON = 5.8 mΩ at V_IN = 1.2 V
  • r_ON = 6.1 mΩ at V_IN = 1.05 V
  • r_ON = 7.3 mΩ at V_IN = 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 (r_ON). 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, space- saving 8-pin CSP package and is characterized for operation over the free-air temperature range of –40°C to 85°C.

1. For all available packages, see the orderable addendum at the end of the datasheet.

Typical Application

4 Revision History

Changes from C Revision (April 2015) to D Revision

• Added Information about backside coating to Device Comparison table Go

Changes from November 2014 Revision (B) to C Revision

Changes from A Revision (July 2013) to B Revision

• Added Pin Configuration and Functions section, Handling Rating table, Feature Description section, Device Functional Modes, Application and Implementation section, Power Supply Recommendations section, Layout section, Device and Documentation Support section, and Mechanical, Packaging, and Orderable Information section Go

Changes from * Revision (June 2011) to A Revision

• Updated swapped image issue.Go

5 Device Comparison Table