ZHCSK64B October   2019  – December 2020 TPSM265R1

PRODUCTION DATA  

  1. 1 特性
  2. 2 应用
  3. 3 说明
  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  Typical Characteristics (VIN = 5 V)
    7. 6.7  Typical Characteristics (VIN = 12 V)
    8. 6.8  Typical Characteristics (VIN = 24 V)
    9. 6.9  Typical Characteristics (VIN = 48 V)
    10. 6.10 Typical Characteristics (VIN = 65 V)
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Adjustable Output Voltage (FB)
      2. 7.3.2 Input Capacitor Selection
      3. 7.3.3 Output Capacitor Selection
      4. 7.3.4 Precision Enable (EN), Undervoltage Lockout (UVLO), and Hysteresis (HYS)
      5. 7.3.5 PFM Operation
      6. 7.3.6 Power Good (PGOOD)
      7. 7.3.7 Configurable Soft Start (SS)
        1. 7.3.7.1 Prebiased Start-up
      8. 7.3.8 Overcurrent Protection (OCP)
      9. 7.3.9 Thermal Shutdown
    4. 7.4 Device Functional Modes
      1. 7.4.1 Shutdown Mode
      2. 7.4.2 Standby Mode
      3. 7.4.3 Active Mode
      4. 7.4.4 Sleep Mode
  8. 8 Applications and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Applications
      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 Output Voltage Setpoint
        3. 8.2.2.3 Input Capacitors
        4. 8.2.2.4 Output Capacitor Selection
        5. 8.2.2.5 UVLO Programming
        6. 8.2.2.6 Soft-Start Capacitor – CSS
      3. 8.2.3 Application Curves
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
      1. 10.2.1 Theta JA versus PCB Area
      2. 10.2.2 Package Specifications
      3. 10.2.3 EMI
  11. 11Device and Documentation Support
    1. 11.1 Device Support
      1. 11.1.1 Third-Party Products Disclaimer
      2. 11.1.2 Development Support
      3. 11.1.3 Custom Design With WEBENCH® Tools
    2. 11.2 Documentation Support
      1. 11.2.1 Related Documentation
    3. 11.3 Receiving Notification of Documentation Updates
    4. 11.4 Support Resources
    5. 11.5 Trademarks
    6. 11.6 Electrostatic Discharge Caution
    7. 11.7 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

6.9 Typical Characteristics (VIN = 48 V)

Refer to Section 8.2 for circuit designs. TA = 25°C unless otherwise noted.

GUID-0B2CF61D-E7C9-4BDA-B249-B3787D0C4B61-low.gifFigure 6-16 Efficiency
GUID-C7EF8F10-890C-4E56-A99C-85441590764F-low.gif
 
Figure 6-18 Power Dissipation
GUID-C9AAFD32-C469-4489-88E1-4D80714F89DB-low.gif
Applies to a device soldered to a 50-mm × 75-mm, 4-layer PCB
Figure 6-20 Safe Operating Area
GUID-1683C5E2-A040-4C8B-9E6B-D1C1D0D296EE-low.gifFigure 6-17 Efficiency Log Scale
GUID-8521A039-1DD1-4C0F-BFDE-7E847791F615-low.gif
COUT = 47 µF, 16-V, ceramic
Figure 6-19 Output Voltage Ripple
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