SLVSFU8C January   2022  – June 2024 TPS62843

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Device Comparison Table
  6. 5 Pin Configuration and Functions
  7. 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
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Smart Enable and Shutdown (EN)
      2. 7.3.2 Soft Start
      3. 7.3.3 VSET Pin: Output Voltage Selection
      4. 7.3.4 Undervoltage Lockout (UVLO)
      5. 7.3.5 Switch Current Limit, Short-Circuit Protection
      6. 7.3.6 Thermal Shutdown
      7. 7.3.7 Output Voltage Discharge
    4. 7.4 Device Functional Modes
      1. 7.4.1 Power Save Mode Operation
      2. 7.4.2 100% Mode Operation
  9. 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
      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
  10. 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
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information

8.2.3 Application Curves

TPS62843 Efficiency at VOUT = 0.4VFigure 8-2 Efficiency at VOUT = 0.4V
TPS62843 Efficiency at VOUT = 1.2VFigure 8-4 Efficiency at VOUT = 1.2V
TPS62843 Efficiency at VOUT = 3.3VFigure 8-6 Efficiency at VOUT = 3.3V
TPS62843 Output Voltage vs Output Current at VOUT = 0.7VFigure 8-8 Output Voltage vs Output Current at VOUT = 0.7V
TPS62843 Switching Frequency vs Output Current at VOUT = 0.7VFigure 8-10 Switching Frequency vs Output Current at VOUT = 0.7V
TPS62843 Switching Frequency vs Output Current at VOUT= 1.8VFigure 8-12 Switching Frequency vs Output Current at VOUT= 1.8V
TPS62843 Typical Operation at VOUT = 0.7V, IOUT = 100μAFigure 8-14 Typical Operation at VOUT = 0.7V, IOUT = 100μA
TPS62843 Typical Operation at VOUT = 0.7V, IOUT = 400mAFigure 8-16 Typical Operation at VOUT = 0.7V, IOUT = 400mA
TPS62843 Load Transient at VOUT = 0.7V, IOUT = 100μA to 400mA Figure 8-18 Load Transient at VOUT = 0.7V, IOUT = 100μA to 400mA
TPS62843 Load Transient at VOUT = 1.2V, IOUT = 100μA to 20mAFigure 8-20 Load Transient at VOUT = 1.2V, IOUT = 100μA to 20mA
TPS62843 Load Transient at VOUT = 1.2V, IOUT = 5mA to 400mAFigure 8-22 Load Transient at VOUT = 1.2V, IOUT = 5mA to 400mA
TPS62843 AC Load Sweep at VOUT = 1.2V, IOUT = 1mA to 600mAFigure 8-24 AC Load Sweep at VOUT = 1.2V, IOUT = 1mA to 600mA
TPS62843 Line Transient at VOUT = 1.2V, IOUT = 400mA, VIN = 3.6V to 4.2VFigure 8-26 Line Transient at VOUT = 1.2V, IOUT = 400mA, VIN = 3.6V to 4.2V
TPS62843 Start-Up Delay Time, VSET = GNDFigure 8-28 Start-Up Delay Time, VSET = GND
TPS62843 Efficiency at VOUT = 0.7VFigure 8-3 Efficiency at VOUT = 0.7V
TPS62843 Efficiency at VOUT = 1.8VFigure 8-5 Efficiency at VOUT = 1.8V
TPS62843 Output Voltage vs Output Current at VOUT = 1.2VFigure 8-7 Output Voltage vs Output Current at VOUT = 1.2V
TPS62843 Switching Frequency vs Output Current at VOUT = 0.4VFigure 8-9 Switching Frequency vs Output Current at VOUT = 0.4V
TPS62843 Switching Frequency vs Output Current at VOUT= 1.2VFigure 8-11 Switching Frequency vs Output Current at VOUT= 1.2V
TPS62843 Power Supply Rejection Ratio (PSRR) at VOUT = 1.8VFigure 8-13 Power Supply Rejection Ratio (PSRR) at VOUT = 1.8V
TPS62843 Typical Operation at VOUT = 0.7V, IOUT = 20mAFigure 8-15 Typical Operation at VOUT = 0.7V, IOUT = 20mA
TPS62843 Load Transient at VOUT = 0.7V, IOUT = 100 μA to 20 mA Figure 8-17 Load Transient at VOUT = 0.7V, IOUT = 100 μA to 20 mA
TPS62843 Load Transient at VOUT = 0.7V, IOUT = 5mA to 400mA Figure 8-19 Load Transient at VOUT = 0.7V, IOUT = 5mA to 400mA
TPS62843 Load Transient at VOUT = 1.2V, IOUT = 100μA to 400mA Figure 8-21 Load Transient at VOUT = 1.2V, IOUT = 100μA to 400mA
TPS62843 AC Load Sweep at VOUT = 0.7V, IOUT = 1mA to 600mAFigure 8-23 AC Load Sweep at VOUT = 0.7V, IOUT = 1mA to 600mA
TPS62843 Line Transient at VOUT = 0.7V, IOUT = 400mA, VIN = 3.6V to 4.2VFigure 8-25 Line Transient at VOUT = 0.7V, IOUT = 400mA, VIN = 3.6V to 4.2V
TPS62843 Shutdown, Output Discharge at VOUT = 0.7VFigure 8-27 Shutdown, Output Discharge at VOUT = 0.7V
TPS62843 Start-Up Delay Time, VSET = 10kohmsFigure 8-29 Start-Up Delay Time, VSET = 10kohms