SNVSBB3 October   2019 LM5163

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
    1.     Device Images
      1.      Typical Application
      2.      Typical Application Efficiency, VOUT = 12 V
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
    1.     Pin 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
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1  Control Architecture
      2. 7.3.2  Internal VCC Regulator and Bootstrap Capacitor
      3. 7.3.3  Regulation Comparator
      4. 7.3.4  Internal Soft Start
      5. 7.3.5  On-Time Generator
      6. 7.3.6  Current Limit
      7. 7.3.7  N-Channel Buck Switch and Driver
      8. 7.3.8  Synchronous Rectifier
      9. 7.3.9  Enable/Undervoltage Lockout (EN/UVLO)
      10. 7.3.10 Power Good (PGOOD)
      11. 7.3.11 Thermal Protection
    4. 7.4 Device Functional Modes
      1. 7.4.1 Shutdown Mode
      2. 7.4.2 Active Mode
      3. 7.4.3 Sleep Mode
  8. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      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 Switching Frequency (RRON)
        3. 8.2.2.3 Buck Inductor (LO)
        4. 8.2.2.4 Output Capacitor (COUT)
        5. 8.2.2.5 Input Capacitor (CIN)
        6. 8.2.2.6 Type 3 Ripple Network
      3. 8.2.3 Application Curves
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
      1. 10.1.1 Compact PCB Layout for EMI Reduction
      2. 10.1.2 Feedback Resistors
    2. 10.2 Layout Example
  11. 11Device and Documentation Support
    1. 11.1 Device Support
      1. 11.1.1 Third-Party Products Disclaimer
      2. 11.1.2 Development Support
        1. 11.1.2.1 Custom Design With WEBENCH® Tools
    2. 11.2 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

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

8.2.3 Application Curves

LM5163 D001_SNVSBB3_typeff.gifFigure 13. Conversion Efficiency (Log Scale)
LM5163 Loadreg_5163.gif
Figure 15. Load and Line Regulation Performance
LM5163 Noloadstartup_SNVSBC2.gif
VIN = 24 V IOUT = 0 A
Figure 17. No-Load Start-up with VIN
LM5163 noLoadENstartup_SNVSBC2.gif
VIN = 24 V IOUT = 0 A
Figure 19. No-Load Start-up and Shutdown with EN/UVLO
LM5163 prebiasENnoload_SNVSBC2.gif
VIN = 24 V IOUT = 0 A
Figure 21. Pre-bias Start-up with EN/UVLO
LM5163 ShortCircuitRecovery_SNVSBC2.gif
VIN = 24 V Load = Short to 0 A
Figure 23. Short Circuit Recovery
LM5163 noLoadSwitching_SNVSBC2.gif
VIN = 24 V IOUT = 0 A
Figure 25. No-Load Switching
LM5163 EMI5163_VIN48V_Vout12V_LF_Nosnub.gif
VIN = 48 V Load = 0.5 A
Figure 27. CISPR 25 Class 5 Conducted Emissions Plot, 150 kHz to 30 MHz
LM5163 D002_SNVSBB3_efflin.gifFigure 14. Conversion Efficiency (Linear Scale)
LM5163 LoadTransient_SNVSBC2.gif
VIN = 24 V IOUT = 0.125 A to 0.5 A at 0.1 A/μs
Figure 16. Load Step Response
LM5163 Fullloadstartup_SNVSBC2.gif
VIN = 24 V IOUT = 0.5 A (Resistive)
Figure 18. Full-Load Start-up with VIN
LM5163 fullloadENstartup_SNVSBC2.gif
VIN = 24 V IOUT = 0.5 A (Resistive)
Figure 20. Full-Load Start-up and Shutdown with EN/UVLO
LM5163 ShortCircuit_SNVSBC2.gif
VIN = 24 V Load = 0 A to Short
Figure 22. Short Circuit Applied
LM5163 ShortandRecovery_SNVSBC2.gif
VIN = 24 V Load = 0 A to Short to 0 A
Figure 24. No Load to Short Circuit/Short Circuit Recovery
LM5163 FullloadSwitching_SNVSBC2.gif
VIN = 24 V IOUT = 0.5 A
Figure 26. Full-Load Switching
LM5163 EMI5163_VIN48V_Vout12V_HF_Nosnub.gif
VIN = 48 V Load = 0.5 A
Figure 28. CISPR 25 Class 5 Conducted Emissions Plot, 30 MHz to 108 MHz