SLVSFQ7A December   2020  – December 2021 TPS55288-Q1

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 I2C Timing Characteristics
    7. 6.7 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  VCC Power Supply
      2. 7.3.2  Operation Mode Setting
      3. 7.3.3  Input Undervoltage Lockout
      4. 7.3.4  Enable and Programmable UVLO
      5. 7.3.5  Soft Start
      6. 7.3.6  Shutdown and Load Discharge
      7. 7.3.7  Switching Frequency
      8. 7.3.8  Switching Frequency Dithering
      9. 7.3.9  Inductor Current Limit
      10. 7.3.10 Internal Charge Path
      11. 7.3.11 Output Voltage Setting
      12. 7.3.12 Output Current Monitoring and Cable Voltage Droop Compensation
      13. 7.3.13 Integrated Gate Drivers
      14. 7.3.14 Output Current Limit
      15. 7.3.15 Overvoltage Protection
      16. 7.3.16 Output Short Circuit Protection
      17. 7.3.17 Thermal Shutdown
    4. 7.4 Device Functional Modes
      1. 7.4.1 PWM Mode
      2. 7.4.2 Power Save Mode
    5. 7.5 Programming
      1. 7.5.1 Data Validity
      2. 7.5.2 START and STOP Conditions
      3. 7.5.3 Byte Format
      4. 7.5.4 Acknowledge (ACK) and Not Acknowledge (NACK)
      5. 7.5.5 Slave Address and Data Direction Bit
      6. 7.5.6 Single Read and Write
      7. 7.5.7 Multi-Read and Multi-Write
    6. 7.6 Register Maps
      1. 7.6.1 REF Register (Address = 0h, 1h) [reset = 11010010h, 00000000h]
      2. 7.6.2 IOUT_LIMIT Register (Address = 2h) [reset = 11100100h]
      3. 7.6.3 VOUT_SR Register (Address = 3h) [reset = 00000001h]
      4. 7.6.4 VOUT_FS Register (Address = 4h) [reset = 00000011h]
      5. 7.6.5 CDC Register (Address = 5h) [reset = 11100000h]
      6. 7.6.6 MODE Register (Address = 6h) [reset = 00100000h]
      7. 7.6.7 STATUS Register (Address = 7h) [reset = 00000011h]
      8. 7.6.8 Register Summary
  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 Custom Design With WEBENCH® Tools
        2. 8.2.2.2 Switching Frequency
        3. 8.2.2.3 Output Voltage Setting
        4. 8.2.2.4 Inductor Selection
        5. 8.2.2.5 Input Capacitor
        6. 8.2.2.6 Output Capacitor
        7. 8.2.2.7 Output Current Limit
        8. 8.2.2.8 Loop Stability
      3. 8.2.3 Application Curves
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  11. 11Device and Documentation Support
    1. 11.1 Device Support
      1. 11.1.1 Third-Party Products Disclaimer
      2. 11.1.2 Development Support
        1. 11.1.2.1 Custom Design With WEBENCH® Tools
    2. 11.2 Receiving Notification of Documentation Updates
    3. 11.3 Support Resources
    4. 11.4 Trademarks
    5. 11.5 Electrostatic Discharge Caution
    6. 11.6 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

Package Options

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

8.2.3 Application Curves

GUID-20201009-CA0I-SP02-8W65-LCRGNZVXRVM5-low.pngFigure 8-2 Switching Waveforms in VIN = 12 V, VOUT = 5 V, IO = 5 A, FPWM
GUID-E91113C1-85B1-4A6C-B011-47B57987540D-low.pngFigure 8-4 Switching Waveforms in VIN = 12 V, VOUT = 12 V, IO = 5 A, FPWM
GUID-E7D59DE7-667C-419B-B46D-6976F09FA5E9-low.pngFigure 8-6 Switching Waveforms in VIN = 12 V, VOUT = 20 V, IO = 5 A, FPWM
GUID-68C976E4-4E21-4E83-A9AB-534C1461C8FB-low.pngFigure 8-8 Start-up Waveforms in VIN = 12 V, VOUT = 5 V, IO = 5 A, FPWM
GUID-9BBEDD01-B658-495B-87AF-FBBFC42CEEF7-low.pngFigure 8-10 Line Transient Waveforms in VIN = 9 V to 20 V, VOUT = 12 V, IO = 5 A with 200-μs Slew Rate, FPWM
GUID-9069472F-14FC-4486-A4E7-045E5894C07E-low.pngFigure 8-12 3-A Output Current Limit Waveforms in VIN = 12 V,
VOUT = 5 V, RLOAD = 1.2 Ω, FPWM
GUID-7CE87760-D5F6-4A81-9DC9-A89227D650BD-low.pngFigure 8-3 Switching Waveforms in VIN = 12 V, VOUT = 5 V, IO = 0 A, PFM
GUID-71CAEB5B-D38B-4EB0-8995-9635881517FE-low.pngFigure 8-5 Switching Waveforms in VIN = 12 V, VOUT = 12 V, IO = 0 A, PFM
GUID-2A5F4ED8-1129-45DD-8B3A-797D3198C126-low.pngFigure 8-7 Switching Waveforms in VIN = 12 V, VOUT = 20 V, IO = 0 A, PFM
GUID-9424FAAC-5516-4CC5-9787-6AB782BCD640-low.pngFigure 8-9 Shutdown Waveforms in VIN = 12 V, VOUT = 5 V, IO = 5 A, FPWM
GUID-6D8F8F2C-FDA9-4D57-8188-D71B2F2837C2-low.pngFigure 8-11 Load Transient Waveforms in VIN = 12 V, VOUT = 5 V, IO = 2.5 A to 5 A with 20-μs Slew Rate, FPWM