SLVSCJ7B March   2014  – July 2015 TPS22969

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  6. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics, VBIAS = 5.0 V
    6. 6.6 Electrical Characteristics, VBIAS = 2.5 V
    7. 6.7 Switching Characteristics
    8. 6.8 Typical Characteristics
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 On/off Control
      2. 7.3.2 Input Capacitor (CIN)
      3. 7.3.3 Output Capacitor (CL)
      4. 7.3.4 VIN and VBIAS Voltage Range
  8. 8 Applications and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
        1. 8.2.2.1 VIN to VOUT Voltage Drop
        2. 8.2.2.2 Inrush Current
      3. 8.2.3 Application Curves
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  11. 11Device and Documentation Support
    1. 11.1 Community Resources
    2. 11.2 Trademarks
    3. 11.3 Electrostatic Discharge Caution
    4. 11.4 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

1 Features

  • Integrated Single Channel Load Switch
  • VBIAS Voltage Range: 2.5 V to 5.5 V
  • VIN Voltage Range: 0.8 V to 5.5 V
  • Ultra Low RON Resistance
    • RON = 4.4 mΩ at VIN = 1.05 V (VBIAS = 5 V)
  • 6 A Maximum Continuous Switch Current
  • Low Quiescent Current
    • (20 µA (Typ) for VBIAS = 5 V)
  • Low Shutdown Current
    • (1 µA (Typ) for VBIAS = 5 V)
  • Low Control Input Threshold Enables Use of 1.2 V or Higher GPIO
  • Controlled and Fixed Slew Rate Across VBIAS and VIN
    • tR = 599 µs at VIN = 1.05 V (VBIAS = 5 V)
  • Quick Output Discharge (QOD)
  • SON 8-Pin Package with Thermal Pad
  • ESD Performance Tested per JESD 22
    • 2-kV Human-Body Model (HBM)
    • 1-kV Charged-Device Model (CDM)

2 Applications

  • Ultrabook™/Notebooks
  • Desktop PC
  • Industrial PC
  • Chromebook
  • Servers
  • Set-top Boxes
  • Telecom Systems
  • Tablet PC

3 Description

The TPS22969 is a small, ultra-low RON, single channel load switch with controlled turn on. The device contains an N-channel MOSFET that can operate over an input voltage range of 0.8 V to 5.5 V and can support a maximum continuous
current of 6 A.

The combination of ultra-low RON and high current capability of the device makes it ideal for driving processor rails with very tight voltage dropout tolerances. The controlled rise time of the device greatly reduces inrush current caused by large bulk load capacitances, thereby reducing or eliminating voltage droop on the power supply. The switch can be independently controlled via the ON pin, which is capable of interfacing directly with low-voltage control signals originating from microcontrollers or low voltage discrete logic. The device further reduces the total solution size by integrating a 224-Ω pull-down resistor for quick output discharge (QOD) when the switch is turned off.

The TPS22969 is available in a small 3.00 mm x 3.00 mm SON-8 package (DNY). The DNY package integrates a thermal pad which allows for high power dissipation in high current and high temperature applications. The device is characterized for operation over the free-air temperature range of –40°C to 105°C.

Device Information(1)

ORDER NUMBER PACKAGE BODY SIZE (NOM)
TPS22969 WSON (8) 3.00 mm × 3.00 mm
  1. For all available packages, see the orderable addendum at the end of the datasheet.

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Driving High Current Core Rails For a Processor

TPS22969 typ_app1_slvscj7.gif

RON vs VIN (VBIAS = 5 V, IOUT = –200 mA)

TPS22969 D008_TPS22969.gif