SNVS480J January   2007  – July 2020 LM5022

PRODUCTION DATA.  

1. 1 Features
2. 2 Applications
3. 3 Description
   1.     Device Images
      1.      Typical Application
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 High-Voltage Start-Up Regulator
      2. 7.3.2 Input Undervoltage Detector
      3. 7.3.3 Error Amplifier
      4. 7.3.4 Current Sensing and Current Limiting
      5. 7.3.5 PWM Comparator and Slope Compensation
      6. 7.3.6 Soft Start
      7. 7.3.7 MOSFET Gate Driver
      8. 7.3.8 Thermal Shutdown
   4. 7.4 Device Functional Modes
      1. 7.4.1 Oscillator, Shutdown, and SYNC
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  Switching Frequency
         2. 8.2.2.2  MOSFET
         3. 8.2.2.3  Output Diode
         4. 8.2.2.4  Boost Inductor
         5. 8.2.2.5  Output Capacitor
         6. 8.2.2.6  VCC Decoupling Capacitor
         7. 8.2.2.7  Input Capacitor
         8. 8.2.2.8  Current Sense Filter
         9. 8.2.2.9  RSNS, RS2, and Current Limit
         10. 8.2.2.10 Control Loop Compensation
         11. 8.2.2.11 Efficiency Calculations
             1. 8.2.2.11.1 Chip Operating Loss
             2. 8.2.2.11.2 MOSFET Switching Loss
             3. 8.2.2.11.3 MOSFET and RSNS Conduction Loss
             4. 8.2.2.11.4 Output Diode Loss
             5. 8.2.2.11.5 Input Capacitor Loss
             6. 8.2.2.11.6 Output Capacitor Loss
             7. 8.2.2.11.7 Boost Inductor Loss
             8. 8.2.2.11.8 Total Loss
             9. 8.2.2.11.9 Efficiency
      3. 8.2.3 Application Curves
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 Shape Routing
    2. 10.2 Layout Examples
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 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