SNVS710I March   2011  – December 2015 LMZ13608

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
    1.     Device Images
      1.      Simplified Application Schematic
      2.      Efficiency 3.3-V Output at 25°C
  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 Output Overvoltage Protection
      2. 7.3.2 Current Limit
      3. 7.3.3 Thermal Protection
      4. 7.3.4 Prebiased Start-Up
    4. 7.4 Device Functional Modes
      1. 7.4.1 Discontinuous Conduction and Continuous Conduction Modes
  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 Design Steps
        2. 8.2.2.2 Enable Divider, RENT, RENB and RENH Selection
        3. 8.2.2.3 Output Voltage Selection
        4. 8.2.2.4 Soft-Start Capacitor Selection
        5. 8.2.2.5 Tracking Supply Divider Option
        6. 8.2.2.6 COUT Selection
        7. 8.2.2.7 CIN Selection
        8. 8.2.2.8 Discontinuous Conduction and Continuous Conduction Modes Selection
      3. 8.2.3 Application Curves
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Examples
    3. 10.3 Power Dissipation and Thermal Considerations
    4. 10.4 Power Module SMT Guidelines
  11. 11Device and Documentation Support
    1. 11.1 Device Support
      1. 11.1.1 Third-Party Products Disclaimer
      2. 11.1.2 Development Support
    2. 11.2 Documentation Support
      1. 11.2.1 Related Documentation
    3. 11.3 Community Resources
    4. 11.4 Trademarks
    5. 11.5 Electrostatic Discharge Caution
    6. 11.6 Glossary
  12. 12Mechanical, Packaging, and Orderable Information
    1. 12.1 Tape and Reel Information

Package Options

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

6.6 Typical Characteristics

Unless otherwise specified, the following conditions apply: VIN = 12 V; CIN = three × 10 μF + 47-nF X7R Ceramic; COUT = two × 330-μF Specialty Polymer + 47-µF Ceramic + 47-nF Ceramic; CFF = 4.7 nF; TA = 25° C for waveforms. All indicated temperatures are ambient.
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Figure 1. Efficiency 5-V Output at 25°C
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Figure 3. Efficiency 3.3-V Output at 25°C
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Figure 5. Efficiency 2.5-V Output at 25°C
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Figure 7. Efficiency 1.8-V Output at 25°C
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Figure 9. Efficiency 1.5-V Output at 25°C
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Figure 11. Efficiency 1.2-V Output at 25°C
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Figure 13. Efficiency 1-V Output at 25°C
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Figure 15. Efficiency 5-V Output at 85°C
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Figure 17. Efficiency 3.3-V Output at 85°C
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Figure 19. Efficiency 2.5-V Output at 85°C
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Figure 21. Efficiency 1.8-V Output at 85°C
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Figure 23. Efficiency 1.5-V Output at 85°C
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Figure 25. Efficiency 1.2-V Output at 85°C
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Figure 27. Efficiency 1-V Output at 85°C
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VOUT = 3.3 V
Figure 29. Normalized Line and Load Regulation
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VIN = 24 V, VOUT = 3.3 V
Figure 31. Thermal Derating
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12 VIN, 5 VOUT at Full Load, BW = 20 MHz
Figure 33. Output Ripple
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12 VIN, 3.3 VOUT at Full Load, BW = 20 MHz
Figure 35. Output Ripple
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12 VIN, 1.2 VOUT at Full Load, BW = 20 MHz
Figure 37. Output Ripple
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12 VIN, 5 VOUT, 1- to 8-A Step
Figure 39. Transient Response
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12 VIN, 1.2 VOUT, 1- to 8-A Step
Figure 41. Transient Response
LMZ13608 30151476.png
No CSS
Figure 43. 3.3 VOUT Soft-Start
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Figure 2. Dissipation 5-V Output at 25°C
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Figure 4. Dissipation 3.3-V Output at 25°C
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Figure 6. Dissipation 2.5-V Output at 25°C
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Figure 8. Dissipation 1.8-V Output at 25°C
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Figure 10. Dissipation 1.5-V Output at 25°C
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Figure 12. Dissipation 1.2-V Output at 25°C
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Figure 14. Dissipation 1-V Output at 25°C
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Figure 16. Dissipation 5-V Output at 85°C
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Figure 18. Dissipation 3.3-V Output at 85°C
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Figure 20. Dissipation 2.5-V Output at 85°C
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Figure 22. Dissipation 1.8-V Output at 85°C
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Figure 24. Dissipation 1.5-V Output at 85°C
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Figure 26. Dissipation 1.2-V Output at 85°C
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Figure 28. Dissipation 1-V Output at 85°C
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VIN = 24 V, VOUT = 5 V
Figure 30. Thermal Derating
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Figure 32. θJA vs Copper Heat Sinking Area
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12 VIN, 5 VOUT at Full Load, BW = 250 MHz
Figure 34. Output Ripple
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12 VIN, 3.3 VOUT at Full Load, BW = 250 MHz
Figure 36. Output Ripple
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12 VIN, 1.2 VOUT at Full Load, BW = 250 MHz
Figure 38. Output Ripple
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12 VIN, 3.3 VOUT, 1- to 8-A Step
Figure 40. Transient Response
LMZ13608 30151475.gif
Figure 42. Short Circuit Current vs Input Voltage
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CSS = 0.47 µF
Figure 44. 3.3 VOUT Soft-Start