JAJSOW4A September   2009  – January 2024 TPS5410-Q1

PRODUCTION DATA  

  1.   1
  2. 1特長
  3. 2アプリケーション
  4. 3概要
  5. 4静電気放電に関する注意事項
  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 Liming
      11. 8.2.11 Overvoltage Protection
      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
      16. 8.2.16 Output Filter Capacitor Selection
      17. 8.2.17 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
    5. 8.5 Performance Graphs
  10. 9Revision History

パッケージ・オプション

メカニカル・データ（パッケージ｜ピン）
サーマルパッド・メカニカル・データ
発注情報

For this design example, a single 47-μF output capacitor is chosen for C3. This value is close to the calculated value of 36.5 μF and yields an actual closed loop cross over frequency of 10.05 kHz. The calculated RMS ripple current is 84.9 mA and the maximum ESR required is 339 mΩ. A capacitor that meets these requirements is a AVX TPSE476M020R0150, rated at 20 V with a maximum ESR of 150 mΩ and a ripple current rating of 1.369 A. This capacitor results in a peak-to-peak output ripple of 44 mV using equation 10. An additional small 0.1-μF ceramic bypass capacitor may also used, but is not included in this design.

Other capacitor types can be used with the TPS5410, depending on the needs of the application.