SLVSET0E May   2020  – October 2024 TPS61378-Q1

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  VCC Power Supply
      2. 7.3.2  Input Undervoltage Lockout (UVLO)
      3. 7.3.3  Enable and Soft Start
      4. 7.3.4  Shut Down
      5. 7.3.5  Switching Frequency Setting
      6. 7.3.6  Spread Spectrum Frequency Modulation
      7. 7.3.7  Adjustable Peak Current Limit
      8. 7.3.8  Bootstrap
      9. 7.3.9  Load Disconnect
      10. 7.3.10 MODE/SYNC Configuration
      11. 7.3.11 Overvoltage Protection (OVP)
      12. 7.3.12 Output Short Protection/Hiccup
      13. 7.3.13 Power-Good Indicator
      14. 7.3.14 Thermal Shutdown
    4. 7.4 Device Functional Modes
      1. 7.4.1 Forced PWM Mode
      2. 7.4.2 Auto PFM Mode
      3. 7.4.3 External Clock Synchronization
      4. 7.4.4 Down Mode
  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
        1. 8.2.2.1 Programming the Output Voltage
        2. 8.2.2.2 Setting the Switching Frequency
        3. 8.2.2.3 Setting the Current Limit
        4. 8.2.2.4 Selecting the Inductor
        5. 8.2.2.5 Selecting the Output Capacitors
        6. 8.2.2.6 Selecting the Input Capacitors
        7. 8.2.2.7 Loop Stability and Compensation
          1. 8.2.2.7.1 Small Signal Model
          2. 8.2.2.7.2 Loop Compensation Design Steps
          3. 8.2.2.7.3 Selecting the Bootstrap Capacitor
          4. 8.2.2.7.4 VCC Capacitor
      3. 8.2.3 Application Curves
  10. 9 Power Supply Recommendations
  11. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  12. 11Device and Documentation Support
    1. 11.1 Device Support
      1. 11.1.1 Third-Party Products Disclaimer
    2. 11.2 Receiving Notification of Documentation Updates
    3. 11.3 Support Resources
    4. 11.4 Trademarks
    5. 11.5 Glossary
    6. 11.6 Electrostatic Discharge Caution
  13. 12Revision History
  14. 13Mechanical, Packaging, and Orderable Information

8.2.3 Application Curves

TPS61378-Q1 Switching Waveform VIN = 5 V, VOUT = 9 V, IOUT = 800 mA, FPWMFigure 8-5 Switching Waveform VIN = 5 V,
VOUT = 9 V, IOUT = 800 mA, FPWM
TPS61378-Q1 Load Transient VIN = 5 V, VOUT = 9 V, IOUT = 300 mA to 800 mA, FPWMFigure 8-7 Load Transient VIN = 5 V, VOUT = 9 V, IOUT = 300 mA to 800 mA, FPWM
TPS61378-Q1 Shutdown from EN Waveforms VIN = 5 V, VOUT = 9 V, IOUT = 500 mA, FPWMFigure 8-9 Shutdown from EN Waveforms
VIN = 5 V, VOUT = 9 V, IOUT = 500 mA, FPWM
TPS61378-Q1 Short Circuit Recovery VIN = 5 V, VOUT = 9 V, IOUT = 0 mA, FPWMFigure 8-11 Short Circuit Recovery VIN = 5 V,
VOUT = 9 V, IOUT = 0 mA, FPWM
TPS61378-Q1 Switching Waveform VIN = 5 V, VOUT = 9 V, IOUT = 0 mA, Auto PFMFigure 8-6 Switching Waveform VIN = 5 V,
VOUT = 9 V, IOUT = 0 mA, Auto PFM
TPS61378-Q1 Start-up from EN Waveform VIN = 5 V, VOUT = 9 V, IOUT = 500 mA, FPWMFigure 8-8 Start-up from EN Waveform VIN = 5 V, VOUT = 9 V, IOUT = 500 mA, FPWM
TPS61378-Q1 Short Circuit Protection VIN = 5 V, VOUT = 9 V, FPWMFigure 8-10 Short Circuit Protection VIN = 5 V,
VOUT = 9 V, FPWM
TPS61378-Q1 Hiccup Short Circuit Protection VIN = 5 V, VOUT = 9 V, FPWMFigure 8-12 Hiccup Short Circuit Protection
VIN = 5 V, VOUT = 9 V, FPWM