SLVSIC8 December   2025 TPSM852892

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Pin Configuration and Functions
  6. 5 Specifications
    1. 5.1 Absolute Maximum Ratings
    2. 5.2 ESD Ratings
    3. 5.3 Recommended Operating Conditions
    4. 5.4 Thermal Information
    5. 5.5 Electrical Characteristics
    6. 5.6 Typical Characteristics
  7. 6 Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagram
    3. 6.3 Feature Description
      1. 6.3.1  VCC Power Supply
      2. 6.3.2  EXTVCC Power Supply
      3. 6.3.3  Input Undervoltage Lockout
      4. 6.3.4  Enable and Programmable UVLO
      5. 6.3.5  Soft Start
      6. 6.3.6  Shutdown
      7. 6.3.7  Switching Frequency
      8. 6.3.8  Switching Frequency Dithering
      9. 6.3.9  Inductor Current Limit
      10. 6.3.10 Internal Charge Path
      11. 6.3.11 Output Voltage Setting
      12. 6.3.12 Output Current Monitoring and Cable Voltage Droop Compensation
      13. 6.3.13 Output Current Limit
      14. 6.3.14 Overvoltage Protection
      15. 6.3.15 Output Short Circuit Protection
      16. 6.3.16 Power Good
      17. 6.3.17 Constant Current Output Indication
      18. 6.3.18 Thermal Shutdown
    4. 6.4 Device Functional Modes
      1. 6.4.1 PWM Mode
      2. 6.4.2 Power Save Mode
  8. 7 Application and Implementation
    1. 7.1 Application Information
    2. 7.2 Typical Application
      1. 7.2.1 Design Requirements
      2. 7.2.2 Detailed Design Procedure
        1. 7.2.2.1 Switching Frequency
        2. 7.2.2.2 Output Voltage Setting
        3. 7.2.2.3 Input Capacitor
        4. 7.2.2.4 Output Capacitor
        5. 7.2.2.5 Output Current Limit
        6. 7.2.2.6 Loop Stability
      3. 7.2.3 Application Curves
    3. 7.3 Power Supply Recommendations
    4. 7.4 Layout
      1. 7.4.1 Layout Guidelines
      2. 7.4.2 Layout Example
  9. 8 Device and Documentation Support
    1. 8.1 Device Support
      1. 8.1.1 Third-Party Products Disclaimer
    2. 8.2 Receiving Notification of Documentation Updates
    3. 8.3 Support Resources
    4. 8.4 Trademarks
    5. 8.5 Electrostatic Discharge Caution
    6. 8.6 Glossary
  10. 9 Revision History
  11. 10Mechanical, Packaging, and Orderable Information

7.2.3 Application Curves

TPSM852892 Switching Waveforms in VIN = 12V, VOUT = 5V, IO = 2A, FPWMFigure 7-2 Switching Waveforms in VIN = 12V, VOUT = 5V, IO = 2A, FPWM
TPSM852892 Switching Waveforms in VIN = 12V, VOUT = 12V, IO = 2A, FPWMFigure 7-4 Switching Waveforms in VIN = 12V, VOUT = 12V, IO = 2A, FPWM
TPSM852892 Switching Waveforms in VIN = 12V, VOUT = 20V, IO = 1.5A, FPWMFigure 7-6 Switching Waveforms in VIN = 12V, VOUT = 20V, IO = 1.5A, FPWM
TPSM852892 Start-up Waveforms in VIN = 12V, VOUT = 5V, RLOAD = 2.5Ω, FPWMFigure 7-8 Start-up Waveforms in VIN = 12V, VOUT = 5V, RLOAD = 2.5Ω, FPWM
TPSM852892 Line Transient Waveforms in VIN = 9V to 20V, VOUT = 12V, IO = 2A with 200μs Slew Rate, FPWMFigure 7-10 Line Transient Waveforms in VIN = 9V to 20V, VOUT = 12V, IO = 2A with 200μs Slew Rate, FPWM
TPSM852892 Output Current Limit Waveforms in VIN = 12V, VOUT = 5V, RLOAD = 0.8Ω, RSNS = 10mΩ, FPWMFigure 7-12 Output Current Limit Waveforms in VIN = 12V, VOUT = 5V, RLOAD = 0.8Ω, RSNS = 10mΩ, FPWM
TPSM852892 CISPR 32 Class B Conducted Emissions in VIN = 12V, VOUT = 9V, RLOAD = 3Ω, FPWM, Spread Spectrum enabledFigure 7-14 CISPR 32 Class B Conducted Emissions in VIN = 12V, VOUT = 9V, RLOAD = 3Ω, FPWM, Spread Spectrum enabled
TPSM852892 CISPR 32 Class B Radiated Emissions - Vertical in VIN = 12V, VOUT = 9V, RLOAD = 3Ω, FPWM, Spread Spectrum enabledFigure 7-16 CISPR 32 Class B Radiated Emissions - Vertical in VIN = 12V, VOUT = 9V, RLOAD = 3Ω, FPWM, Spread Spectrum enabled
TPSM852892 CISPR 32 Class B Radiated Emissions - Horizontal in VIN = 12V, VOUT = 12V, RLOAD = 6Ω, FPWM, Spread Spectrum enabledFigure 7-18 CISPR 32 Class B Radiated Emissions - Horizontal in VIN = 12V, VOUT = 12V, RLOAD = 6Ω, FPWM, Spread Spectrum enabled
TPSM852892 CISPR 32 Class B Conducted Emissions in VIN = 12V, VOUT = 15V, RLOAD = 10Ω, FPWM, Spread Spectrum enabledFigure 7-20 CISPR 32 Class B Conducted Emissions in VIN = 12V, VOUT = 15V, RLOAD = 10Ω, FPWM, Spread Spectrum enabled
TPSM852892 CISPR 32 Class B Radiated Emissions - Vertical in VIN = 12V, VOUT = 15V, RLOAD = 10Ω, FPWM, Spread Spectrum enabledFigure 7-22 CISPR 32 Class B Radiated Emissions - Vertical in VIN = 12V, VOUT = 15V, RLOAD = 10Ω, FPWM, Spread Spectrum enabled
TPSM852892 Switching Waveforms in VIN = 12V, VOUT = 5V, IO = 0A, PFMFigure 7-3 Switching Waveforms in VIN = 12V, VOUT = 5V, IO = 0A, PFM
TPSM852892 Switching Waveforms in VIN = 12V, VOUT = 12V, IO = 0A, PFMFigure 7-5 Switching Waveforms in VIN = 12V, VOUT = 12V, IO = 0A, PFM
TPSM852892 Switching Waveforms in VIN = 12V, VOUT = 20V, IO = 0A, PFMFigure 7-7 Switching Waveforms in VIN = 12V, VOUT = 20V, IO = 0A, PFM
TPSM852892 Shutdown Waveforms in VIN = 12V, VOUT = 5V, RLOAD = 2.5Ω, FPWMFigure 7-9 Shutdown Waveforms in VIN = 12V, VOUT = 5V, RLOAD = 2.5Ω, FPWM
TPSM852892 Load Transient Waveforms in VIN = 12V, VOUT = 5V, IO = 0A to 2A with 20μs Slew Rate, FPWMFigure 7-11 Load Transient Waveforms in VIN = 12V, VOUT = 5V, IO = 0A to 2A with 20μs Slew Rate, FPWM
TPSM852892 Recommended Input EMI FilterFigure 7-13 Recommended Input EMI Filter
TPSM852892 CISPR 32 Class B Radiated Emissions - Horizontal in VIN = 12V, VOUT = 9V, RLOAD = 3Ω, FPWM, Spread Spectrum enabledFigure 7-15 CISPR 32 Class B Radiated Emissions - Horizontal in VIN = 12V, VOUT = 9V, RLOAD = 3Ω, FPWM, Spread Spectrum enabled
TPSM852892 CISPR 32 Class B Conducted Emissions in VIN = 12V, VOUT = 12V, RLOAD = 6Ω, FPWM, Spread Spectrum enabledFigure 7-17 CISPR 32 Class B Conducted Emissions in VIN = 12V, VOUT = 12V, RLOAD = 6Ω, FPWM, Spread Spectrum enabled
TPSM852892 CISPR 32 Class B Radiated Emissions - Vertical in VIN = 12V, VOUT = 12V, RLOAD = 6Ω, FPWM, Spread Spectrum enabledFigure 7-19 CISPR 32 Class B Radiated Emissions - Vertical in VIN = 12V, VOUT = 12V, RLOAD = 6Ω, FPWM, Spread Spectrum enabled
TPSM852892 CISPR 32 Class B Radiated Emissions - Horizontal in VIN = 12V, VOUT = 15V, RLOAD = 10Ω, FPWM, Spread Spectrum enabledFigure 7-21 CISPR 32 Class B Radiated Emissions - Horizontal in VIN = 12V, VOUT = 15V, RLOAD = 10Ω, FPWM, Spread Spectrum enabled