ZHCSBE2A August   2013  – October 2022 TPS54625

PRODUCTION DATA  

  1. 1 特性
  2. 2 应用范围
  3. 3 说明
  4. 4 ORDERING INFORMATION (1)
  5. 5 最大绝对额定值
  6. 6 THERMAL INFORMATION
  7. 7 RECOMMENDED OPERATING CONDITIONS
  8. 8 ELECTRICAL CHARACTERISTICS
  9. 9 DEVICE INFORMATION
  10. 10OVERVIEW
  11. 11DETAILED DESCRIPTION
    1. 11.1 PWM Operation
    2. 11.2 PWM Frequency and Adaptive On-Time Control
    3. 11.3 Soft Start and Pre-Biased Soft Start
    4. 11.4 Power Good
    5. 11.5 Output Discharge Control
    6. 11.6 Current Protection
    7. 11.7 Over/Under Voltage Protection
    8. 11.8 UVLO Protection
    9. 11.9 Thermal Shutdown
  12. 12TYPICAL CHARACTERISTICS
  13. 13DESIGN GUIDE
    1. 13.1 Step By Step Design Procedure
    2. 13.2 Output Voltage Resistors Selection
    3. 13.3 Output Filter Selection
    4. 13.4 Input Capacitor Selection
    5. 13.5 Bootstrap Capacitor Selection
    6. 13.6 VREG5 Capacitor Selection
  14. 14THERMAL INFORMATION
  15. 15LAYOUT CONSIDERATIONS
  16. 16Revision History

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13.4 Input Capacitor Selection

The TPS54625 requires an input decoupling capacitor and a bulk capacitor is needed depending on the application. A ceramic capacitor over 10 μF is recommended for the decoupling capacitor. An additional 0.1 µF capacitor from pin 14 to ground is recommended to improve the EMI performance. The capacitor voltage rating needs to be greater than the maximum input voltage.