ZHCSQS6C November   2007  – January 2024 TPS5420-Q1

PRODUCTION DATA  

  1.   1
  2. 1特性
  3. 2应用
  4. 3说明
  5. 4静电放电警告
  6. 5Ordering Information
  7. 6Pin Assignments
    1. 6.1 Terminal Functions
  8. 7Specifications
    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 Typical Characteristics
  9. 8Application Information
    1. 8.1 Functional Block Diagram
    2. 8.2 Detailed Description
      1. 8.2.1  Oscillator Frequency
      2. 8.2.2  Voltage Reference
      3. 8.2.3  Enable (ENA) and Internal Slow Start
      4. 8.2.4  Undervoltage Lockout (UVLO)
      5. 8.2.5  Boost Capacitor (BOOT)
      6. 8.2.6  Output Feedback (VSENSE)
      7. 8.2.7  Internal Compensation
      8. 8.2.8  Voltage Feed Forward
      9. 8.2.9  Pulse-Width-Modulation (PWM) Control
      10. 8.2.10 Overcurrent Limiting
      11. 8.2.11 Overvoltage Protection (OVP)
      12. 8.2.12 Thermal Shutdown
      13. 8.2.13 PCB Layout
      14. 8.2.14 Application Circuits
      15. 8.2.15 Design Procedure
        1. 8.2.15.1  Design Parameters
        2. 8.2.15.2  Switching Frequency
        3. 8.2.15.3  Input Capacitors
        4. 8.2.15.4  Output Filter Components
          1. 8.2.15.4.1 Inductor Selection
          2. 8.2.15.4.2 Capacitor Selection
          3.        40
          4.        41
        5. 8.2.15.5  Output Voltage Setpoint
        6. 8.2.15.6  Boot Capacitor
        7. 8.2.15.7  Catch Diode
        8. 8.2.15.8  Additional Circuits
        9. 8.2.15.9  Circuit Using Ceramic Output Filter Capacitors
        10. 8.2.15.10 Output Filter Component Selection
        11. 8.2.15.11 External Compensation Network
    3. 8.3 Advanced Information
      1. 8.3.1 Output Voltage Limitations
      2. 8.3.2 Internal Compensation Network
      3. 8.3.3 Thermal Calculations
    4. 8.4 Performance Graphs
  10. 9Revision History

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8.2.15.9 Circuit Using Ceramic Output Filter Capacitors

Figure 8-5 shows an application circuit using all ceramic capacitors for the input and output filters that generates a 3.3-V output from a 10-V to 24-V input. The design procedure is similar to those given for the design example, except for the selection of the output filter capacitor values and the design of the additional compensation components required to stabilize the circuit.

GUID-87CFA6E0-1F71-4B7A-A08A-ECF84000D59E-low.gif Figure 8-5 Ceramic Output Filter Capacitors Circuit