SLLSEP9H September   2015  – July 2019 SN6505A , SN6505B

PRODUCTION DATA.  

  1. Features
  2. Applications
  3. Description
    1.     Device Images
      1.      Simplified Schematic
  4. Revision History
  5. Pin Configuration and Functions
  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 Timing Requirements
    7. 6.7 Typical Characteristics, SN6505A
    8. 6.8 Typical Characteristics, SN6505B
  7. Parameter Measurement Information
  8. Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Push-Pull Converter
      2. 8.3.2 Core Magnetization
    4. 8.4 Device Functional Modes
      1. 8.4.1 Start-Up Mode
        1. 8.4.1.1 Soft-Start
      2. 8.4.2 Operating Mode
      3. 8.4.3 Shutdown-Mode
      4. 8.4.4 Spread Spectrum Clocking
      5. 8.4.5 External Clock Mode
  9. Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
        1. 9.2.2.1 Drive Capability
        2. 9.2.2.2 LDO Selection
        3. 9.2.2.3 Diode Selection
        4. 9.2.2.4 Capacitor Selection
        5. 9.2.2.5 Transformer Selection
          1. 9.2.2.5.1 V-t Product Calculation
          2. 9.2.2.5.2 Turns Ratio Estimate
          3. 9.2.2.5.3 Recommended Transformers
      3. 9.2.3 Application Curves
      4. 9.2.4 System Examples
        1. 9.2.4.1 Higher Output Voltage Designs
        2. 9.2.4.2 Application Circuits
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Device Support
      1. 12.1.1 Third-Party Products Disclaimer
    2. 12.2 Documentation Support
      1. 12.2.1 Related Documentation
    3. 12.3 Related Links
    4. 12.4 Receiving Notification of Documentation Updates
    5. 12.5 Community Resources
    6. 12.6 Trademarks
    7. 12.7 Electrostatic Discharge Caution
    8. 12.8 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

Package Options

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

Typical Characteristics, SN6505A

SN6505A SN6505B D005_SLLSEP9.gif
SN6505A + Wurth 750315240
Figure 1. Output Voltage vs Load Current
SN6505A SN6505B D028_SLLSEP9.gif
SN6505A + Wurth 750316031 VCC = 3.3 V
Figure 3. Output Voltage vs Load Current
SN6505A SN6505B D030_SLLSEP9.gif
SN6505A + Wurth 750316032 VCC = 3.3 V
Figure 5. Output Voltage vs Load Current
SN6505A SN6505B D032_SLLSEP9.gif
SN6505A + Wurth 750316033 VCC = 5 V
Figure 7. Output Voltage vs Load Current
SN6505A SN6505B D003_SLLSEP9.gif
Figure 9. Frequency vs Free-Air Temperature
SN6505A SN6505B D006_SLLSEP9.gif
SN6505A + Wurth 750315240
Figure 2. Efficiency vs Load Current
SN6505A SN6505B D029_SLLSEP9.gif
SN6505A + Wurth 750316031 VCC = 3.3 V
Figure 4. Efficiency vs Load Current
SN6505A SN6505B D031_SLLSEP9.gif
SN6505A + Wurth 750316032 VCC = 3.3 V
Figure 6. Efficiency vs Load Current
SN6505A SN6505B D033_SLLSEP9.gif
SN6505A + Wurth 750316033 VCC = 5 V
Figure 8. Efficiency vs Load Current
SN6505A SN6505B D001_SLLSEP9.gif
Figure 10. Current vs External Frequency