SNVS961F April   2013  – October 2026 LM5023

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Pin Configuration and Functions
  6. 5 Specifications
    1. 5.1 Absolute Maximum Ratings
    2. 5.2 ESD Ratings
    3. 5.3 Recommended Operating Conditions
    4. 5.4 Thermal Information
    5. 5.5 Electrical Characteristics
    6. 5.6 Typical Characteristics
  7. 6 Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagram
    3. 6.3 Feature Description
      1. 6.3.1 Detailed Pin Description
        1. 6.3.1.1 QR Pin
        2. 6.3.1.2 VSD Pin
        3. 6.3.1.3 SS Pin
        4. 6.3.1.4 COMP Pin
        5. 6.3.1.5 CS Pin
        6. 6.3.1.6 GND Pin
        7. 6.3.1.7 OUT Pin
        8. 6.3.1.8 VCC Pin
      2. 6.3.2 Start-Up
      3. 6.3.3 Quasi-Resonant Operation
      4. 6.3.4 Quasi-Resonant Operating Frequency
      5. 6.3.5 PWM Comparator
      6. 6.3.6 Soft-Start
      7. 6.3.7 Gate Driver
        1. 6.3.7.1 Skip-Cycle Operation
      8. 6.3.8 Current Limit and Current Sense
    4. 6.4 Device Functional Modes
  8. 7 Application and Implementation
    1. 7.1 Application Information
    2. 7.2 Typical Application
      1. 7.2.1 Design Requirements
      2. 7.2.2 Detailed Design Procedure
        1. 7.2.2.1 Custom Design With WEBENCH® Tools
        2. 7.2.2.2 Line Current-Limit Feedforward
          1. 7.2.2.2.1 Overvoltage Protection
        3. 7.2.2.3 Valley Switching
        4. 7.2.2.4 Hiccup Mode
      3. 7.2.3 Application Curves
    3. 7.3 Power Supply Recommendations
    4. 7.4 Layout
      1. 7.4.1 Layout Guidelines
      2. 7.4.2 Layout Example
  9. 8 Device and Documentation Support
    1. 8.1 Device Support
      1. 8.1.1 Development Support
        1. 8.1.1.1 Custom Design With WEBENCH® Tools
    2. 8.2 Documentation Support
      1. 8.2.1 Related Documentation
    3. 8.3 Receiving Notification of Documentation Updates
    4. 8.4 Community Resources
    5. 8.5 Trademarks
  10. 9 Revision History
  11. 10Mechanical, Packaging, and Orderable Information

Package Options

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

5.6 Typical Characteristics

LM5023 VCCON vs. Temperature
Figure 5-1 VCCON vs. Temperature
LM5023 VRST vs. Temperature
Figure 5-3 VRST vs. Temperature
LM5023 ICCOP vs. Temperature
Figure 5-5 ICCOP vs. Temperature
LM5023 CS Threshold vs. Temperature
Figure 5-7 CS Threshold vs. Temperature
LM5023 VCCOFF vs. Temperature
Figure 5-2 VCCOFF vs. Temperature
LM5023 ICCST vs. Temperature
Figure 5-4 ICCST vs. Temperature
LM5023 FMAX vs. Temperature
Figure 5-6 FMAX vs. Temperature