SLVSAR3E April   2011  – December 2015 TPS22924B , TPS22924C

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Device Comparison Table
  6. 6 Pin Configuration and Functions
  7. 7 Specifications
    1. 7.1  Absolute Maximum Ratings
    2. 7.2  ESD Ratings
    3. 7.3  Recommended Operating Conditions
    4. 7.4  Thermal Information
    5. 7.5  Electrical Characteristics
    6. 7.6  Switching Characteristics, VIN = 3.6 V
    7. 7.7  Switching Characteristics, VIN = 0.9 V
    8. 7.8  Typical Characteristics
    9. 7.9  AC Characteristics (TPS22924B)
    10. 7.10 AC Characteristics (TPS22924C)
  8. 8 Parameter Measurement Information
  9. 9 Detailed Description
    1. 9.1 Overview
    2. 9.2 Functional Block Diagram
    3. 9.3 Feature Description
      1. 9.3.1 ON/OFF Control
      2. 9.3.2 Output Capacitor
      3. 9.3.3 Output Pulldown
    4. 9.4 Device Functional Modes
  10. 10Application and Implementation
    1. 10.1 Application Information
      1. 10.1.1 VIN to VOUT Voltage Drop
      2. 10.1.2 Input Capacitor
      3. 10.1.3 Output Capacitor
    2. 10.2 Typical Application
      1. 10.2.1 Design Requirements
      2. 10.2.2 Detailed Design Procedure
        1. 10.2.2.1 Managing Inrush Current
      3. 10.2.3 Application Curve
  11. 11Power Supply Recommendations
  12. 12Layout
    1. 12.1 Layout Guidelines
    2. 12.2 Layout Example
  13. 13Device and Documentation Support
    1. 13.1 Related Links
    2. 13.2 Community Resources
    3. 13.3 Trademarks
    4. 13.4 Electrostatic Discharge Caution
    5. 13.5 Glossary
  14. 14Mechanical, Packaging, and Orderable Information

Package Options

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

1 Features

  • Integrated Single Load Switch
  • Input Voltage: 0.75 V to 3.6 V
  • On-Resistance
    • RON = 18.3 mΩ at VIN = 3.6 V
    • RON = 19.6 mΩ at VIN = 1.8 V
    • RON = 19.4 mΩ at VIN = 1.2 V
    • RON = 22.7 mΩ at VIN = 0.75 V
  • Small CSP-6 package
    0.9 mm x 1.4 mm, 0.5-mm Pitch
  • 2 A Maximum Continuous Switch Current
  • Low Shutdown Current
  • Low Threshold Control Input
  • Controlled Slew Rate to Avoid Inrush Currents
  • Quick Output Discharge Transistor
  • ESD Performance Tested Per JESD 22
    • 5000-V Human-Body Model
      (A114-B, Class II)
    • 1000-V Charged-Device Model (C101)

2 Applications

  • Battery Powered Equipment
  • Portable Industrial Equipment
  • Portable Medical Equipment
  • Portable Media Players
  • Point Of Sales Terminal
  • GPS Devices
  • Digital Cameras
  • Notebooks / Tablet PCs / eReaders
  • Smartphones

3 Description

The TPS22924x is a small, low RON load switch with controlled turn on. The device contains a N-channel MOSFET that can operate over an input voltage range of 0.75 V to 3.6 V. An integrated charge pump biases the NMOS switch to achieve a minimum switch ON resistance. The switch is controlled by an on/off input (ON), which is capable of interfacing directly with low-voltage control signals.

A 1250 Ω on-chip load resistor is added for output quick discharge when the switch is turned off. The rise time of the device is internally controlled to avoid inrush current. The TPS22924B features a rise time of 100 µs at VIN = 3.6 V while the TPS22924C has a rise time of 800 µs at VIN = 3.6 V.

The TPS22924x is available in an ultra-small space-saving 6-pin CSP package and is characterized for operation over the free-air temperature range of –40ºC to 85ºC.

Device Information (1)

PART NUMBER PACKAGE BODY SIZE (NOM)
TPS22924B DSBGA (6) 1.40 mm × 0.90 mm
TPS22924C DSBGA (6) 1.40 mm × 0.90 mm
  1. For all available packages, see the orderable addendum at the end of the datasheet.

Simplified Schematic

TPS22924B TPS22924C TPS22924x Typ.jpg

NOTE:

SMPS = Switched-mode power supply