SLVSGV8 October   2022 TPS568231

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
    6. 6.6 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  PWM Operation and D-CAP3™ Control Mode
      2. 7.3.2  Eco-mode™ Control
      3. 7.3.3  4.7-V LDO
      4. 7.3.4  MODE Selection
      5. 7.3.5  Soft Start and Prebiased Soft Start
      6. 7.3.6  Enable and Adjustable UVLO
      7. 7.3.7  Power Good
      8. 7.3.8  Overcurrent Protection and Undervoltage Protection
      9. 7.3.9  UVLO Protection
      10. 7.3.10 Thermal Shutdown
      11. 7.3.11 Output Voltage Discharge
    4. 7.4 Device Functional Modes
      1. 7.4.1 Light Load Operation
      2. 7.4.2 Standby Operation
  8. 8 Application 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 External Component Selection
          1. 8.2.2.1.1 Output Voltage Set Point
          2. 8.2.2.1.2 Switching Frequency and MODE Selection
          3. 8.2.2.1.3 Inductor Selection
          4. 8.2.2.1.4 Output Capacitor Selection
          5. 8.2.2.1.5 Input Capacitor Selection
      3. 8.2.3 Application Curves
    3. 8.3 Power Supply Recommendations
    4. 8.4 Layout
      1. 8.4.1 Layout Guidelines
      2. 8.4.2 Layout Example
  9. 9 Device and Documentation Support
    1. 9.1 Device Support
      1. 9.1.1 Third-Party Products Disclaimer
    2. 9.2 Receiving Notification of Documentation Updates
    3. 9.3 Support Resources
    4. 9.4 Trademarks
    5. 9.5 Electrostatic Discharge Caution
    6. 9.6 Glossary
  10. 10Mechanical, Packaging, and Orderable Information

Package Options

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

1 Features

  • 4.5-V to 17-V input range without external bias
  • 3.8-V to 17-V input range with external bias
  • Supports 8-A continuous output current
  • Integrated 7.8-mΩ and 3.2-mΩ MOSFETs
  • 0.6-V ±1% reference voltage across a –40°C to 125°C junction range
  • 0.6-V to 5.5-V output voltage range
  • 146-μA low quiescent current
  • D-CAP3™ control mode for fast transient response
  • Supports ceramic output capacitors
  • Selectable fSW of 400 kHz, 800 kHz, and 1200 kHz
  • Selectable FCCM (forced continuous conduction mode) for tight output voltage ripple
  • Selectable Eco-mode™ (auto skip mode) for high light-load efficiency
  • Optional external 5-V bias for enhanced efficiency
  • Prebiased start-up capability
  • Adjustable soft start with a default 1.2-ms soft-start time
  • Power-good indicator to monitor output voltage
  • Two adjustable current limit settings with hiccup restart
  • Non-latched protections for UV, OV, OT, and UVLO
  • Pin-to-pin compatible with 8-A TPS568215, and 12-A TPS56C231 and TPS56C215
  • –40°C to 125°C operating junction temperature
  • 3.5-mm × 3.5-mm, 18-pin HotRod™ QFN package
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