ZHCSB89H May   2013  – December 2021 TPS65310A-Q1

PRODUCTION DATA  

  1. 1 特性
  2. 2 应用
  3. 3 说明
  4. 4 Revision History
  5. 5 说明（续）
  6. 6 Pin Configuration and Functions
  7. 7 Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 ESD Ratings
    3. 7.3 Recommended Operating Conditions
    4. 7.4 Thermal Information
    5. 7.5 Electrical Characteristics
    6. 7.6 SPI Timing Requirements
    7. 7.7 Typical Characteristics
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Buck Controller (Buck1)
        1. 8.3.1.1 Operating Modes
        2. 8.3.1.2 Normal Mode PWM Operation
      2. 8.3.2 Synchronous Buck Converters Buck2 And Buck3
      3. 8.3.3 BOOST Converter
      4. 8.3.4 Frequency-Hopping Spread Spectrum
      5. 8.3.5 Linear Regulator LDO
      6. 8.3.6 Gate Driver Supply
    4. 8.4 Device Functional Modes
      1. 8.4.1  RESET
      2. 8.4.2  Soft Start
      3. 8.4.3  INIT
      4. 8.4.4  TESTSTART
      5. 8.4.5  TESTSTOP
      6. 8.4.6  VTCHECK
      7. 8.4.7  RAMP
      8. 8.4.8  Power-Up Sequencing
      9. 8.4.9  Power-Down Sequencing
      10. 8.4.10 Active
      11. 8.4.11 ERROR
      12. 8.4.12 LOCKED
      13. 8.4.13 LPM0
      14. 8.4.14 Shutdown
        1. 8.4.14.1 Power-On Reset Flag
      15. 8.4.15 Wake Pin
      16. 8.4.16 IRQ Pin
      17. 8.4.17 VBAT Undervoltage Warning
      18. 8.4.18 VIN Over Or Undervoltage Protection
      19. 8.4.19 External Protection
      20. 8.4.20 Overtemperature Detection And Shutdown
      21. 8.4.21 Independent Voltage Monitoring
      22. 8.4.22 GND Loss Detection
      23. 8.4.23 Reference Voltage
      24. 8.4.24 Shutdown Comparator
      25. 8.4.25 LED And High-Side Switch Control
      26. 8.4.26 Window Watchdog
      27. 8.4.27 Timeout In Start-Up Modes
    5. 8.5 Programming
      1. 8.5.1 SPI
        1. 8.5.1.1 FSI Bit
    6. 8.6 Register Maps
      1. 8.6.1 Register Description
      2. 8.6.2 NOP0X00
        1. 8.6.2.1  SPI_SCK_FAIL 0x03
        2. 8.6.2.2  LPMO_CMD 0x11
        3. 8.6.2.3  LOCK_CMD 0x12
        4. 8.6.2.4  PWR_STAT 0x21
        5. 8.6.2.5  SYS_STAT 0x22
        6. 8.6.2.6  SPI_STAT 0x23
        7. 8.6.2.7  COMP_STAT 0x24
        8. 8.6.2.8  DEV_REV 0x2F
        9. 8.6.2.9  PWR_CONFIG 0x31
        10. 8.6.2.10 DEV_CONFIG 0x32
        11. 8.6.2.11 CLOCK_CONFIG 0x33
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Applications
      1. 9.2.1 Buck Controller 1
        1. 9.2.1.1 Design Requirements
        2. 9.2.1.2 Detailed Design Procedure
          1. 9.2.1.2.1 Adjusting the Output Voltage for the BUCK1 Controller
          2. 9.2.1.2.2 Output Inductor, Sense Resistor and Capacitor Selection for the BUCK1 Controller
          3. 9.2.1.2.3 Compensation of the Buck Controller
          4. 9.2.1.2.4 Bootstrap Capacitor for the BUCK1 Controller
        3. 9.2.1.3 BUCK 1 Application Curve
      2. 9.2.2 Synchronous Buck Converters BUCK2 and BUCK3
        1. 9.2.2.1 Design Requirements
        2. 9.2.2.2 Detailed Design Procedure
          1. 9.2.2.2.1 Adjusting the Output Voltage for the BUCK2 and BUCK3 Converter
          2. 9.2.2.2.2 Output Inductor Selection for the BUCK2 and BUCK3 Converter
          3. 9.2.2.2.3 Compensation of the BUCK2 and BUCK3 Converters
          4. 9.2.2.2.4 Bootstrap Capacitor for the BUCK2/3 Converters
        3. 9.2.2.3 Application Curves
      3. 9.2.3 BOOST Converter
        1. 9.2.3.1 Design Requirements
        2. 9.2.3.2 Detailed Design Procedure
          1. 9.2.3.2.1 Adjusting the Output Voltage for the Boost Converter
          2. 9.2.3.2.2 Output Inductor and Capacitor Selection for the BOOST Converter
          3. 9.2.3.2.3 Compensation of the BOOST Converter
          4. 9.2.3.2.4 Output Diode for the BOOST Converter
        3. 9.2.3.3 BOOST Converter Application Curves
      4. 9.2.4 Linear Regulator
        1. 9.2.4.1 Design Requirements
        2. 9.2.4.2 Detailed Design Procedure
          1. 9.2.4.2.1 Adjusting the Output Voltage for the Linear Regulator
          2. 9.2.4.2.2 Output Capacitance for the Linear Regulator
        3. 9.2.4.3 Linear Regulator Application Curve
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
      1. 11.1.1 Buck Controller
      2. 11.1.2 Buck Converter
      3. 11.1.3 Boost Converter
      4. 11.1.4 Linear Regulator
      5. 11.1.5 Other Considerations
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Documentation Support
      1. 12.1.1 Related Documentation
    2. 12.2 接收文档更新通知
    3. 12.3 支持资源
    4. 12.4 Trademarks
    5. 12.5 Electrostatic Discharge Caution
    6. 12.6 术语表
  13. 13Mechanical, Packaging, and Orderable Information

封装选项

机械数据 (封装 | 引脚)
散热焊盘机械数据 (封装 | 引脚)
订购信息

11.1.2 Buck Converter

  • Connect a local decoupling capacitor between VSUP2 and PGND2 respectively VSUP3 and PGND3 pins. The length of this trace loop should be short.
  • The resistor divider for sensing the output voltage connects between the positive pin of the output capacitor and the GND pin (IC signal ground). Do not locate these components and their traces near any switching nodes or high-current traces. The resistor divider for monitoring the output voltage is to be placed as close as possible to the sensing resistor divider, and should be connected to same traces.
  • Connect the boot-strap capacitance between the PH2 and BOOT2 respectively PH3 and BOOT3 pins, and keep the length of this trace loop as short as possible.
  • If COMP2 and/or COMP3 are chosen to be connected to ground, use the signal ground trace connected to GND pin for this.