SNOSC66D MARCH   2012  – September 2016 LM3017

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  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
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 True Shutdown
      2. 7.3.2 Operation of the EN/MODE Pin
      3. 7.3.3 EN/MODE Control
      4. 7.3.4 Overvoltage Protection
      5. 7.3.5 Thermal Protection
      6. 7.3.6 Current Limit Protection
    4. 7.4 Device Functional Modes
      1. 7.4.1 Shutdown Mode
      2. 7.4.2 Boost Mode
      3. 7.4.3 Standby Mode
      4. 7.4.4 Start-Up Boost Mode
      5. 7.4.5 Pass-Through Mode
      6. 7.4.6 Start-Up Pass-Through 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  Programming the Output Voltage
        2. 8.2.2.2  Power Inductor Selection
        3. 8.2.2.3  Setting the Output Current
        4. 8.2.2.4  Additional Slope Compensation
        5. 8.2.2.5  Current Limit With Additional Slope Compensation
        6. 8.2.2.6  Power Diode Selection
        7. 8.2.2.7  Low-Side MOSFET Selection (Switching MOSFET)
        8. 8.2.2.8  Pass MOSFET Selection (High-Side MOSFET)
        9. 8.2.2.9  Input Capacitor Selection
        10. 8.2.2.10 Output Capacitor Selection
        11. 8.2.2.11 VCC Decoupling Capacitor
        12. 8.2.2.12 Slope Compensation Ramp
        13. 8.2.2.13 Control Loop Compensation
          1. 8.2.2.13.1 Compensation Network Components Calculations
          2. 8.2.2.13.2 Compensation Design Example
      3. 8.2.3 Application Curve
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
      1. 10.1.1 Filter Capacitors
      2. 10.1.2 Sense Lines
      3. 10.1.3 Compact Layout
      4. 10.1.4 Ground Plane and Vias
    2. 10.2 Layout Examples
    3. 10.3 Thermal Considerations
  11. 11Device and Documentation Support
    1. 11.1 Documentation Support
      1. 11.1.1 Related Documentation
    2. 11.2 Receiving Notification of Documentation Updates
    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

Package Options

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

9 Power Supply Recommendations

The LM3017 is designed to operate from an input voltage supply range from 5 V to 18 V. This input supply must be able to withstand the maximum input current and maintain a voltage above 5 V. In cases where input supply is placed farther away (more than a few inches) from LM3017, additional bulk capacitance may be required in addition to the ceramic bypass capacitors.