SLVUDU7 April   2026 LMG708B0

 

  1.   1
  2.   Description
  3.   Get Started
  4.   Features
  5.   Applications
  6.   6
  7. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
    3. 1.3 Specifications
    4. 1.4 Device Information
      1. 1.4.1 Application Circuit Diagram
  8. 2Hardware
    1. 2.1 Test Setup and Procedure
      1. 2.1.1 EVM Connections
      2. 2.1.2 Test Equipment
      3. 2.1.3 Recommended Test Setup
        1. 2.1.3.1 Input Connections
        2. 2.1.3.2 Output Connections
      4. 2.1.4 Test Procedure
        1. 2.1.4.1 Line and Load Regulation, Efficiency
  9. 3Implementation Results
    1. 3.1 Test Data and Performance Curves
      1. 3.1.1 Efficiency
      2. 3.1.2 Thermal Performance
      3. 3.1.3 Operating Waveforms
        1. 3.1.3.1 Load Transient Response
        2. 3.1.3.2 Start-Up With VIN
        3. 3.1.3.3 Start-Up and Shutdown With ENABLE On and Off
        4. 3.1.3.4 Switching Operation
  10. 4Hardware Design Files
    1. 4.1 Schematic
    2. 4.2 PCB Layout
      1. 4.2.1 Component Drawings
      2. 4.2.2 Layout Guidelines
        1. 4.2.2.1 Power Stage Layout
        2. 4.2.2.2 Small-signal Component Layout
        3. 4.2.2.3 Thermal Design and Layout
        4. 4.2.2.4 Ground Plane Design
    3. 4.3 Bill of Materials
  11. 5Compliance Information
    1. 5.1 Compliance and Certifications
  12. 6Additional Information
    1. 6.1 Trademarks
  13. 7Device and Documentation Support
    1. 7.1 Device Support
      1. 7.1.1 Development Support
    2. 7.2 Documentation Support
      1. 7.2.1 Related Documentation
        1. 7.2.1.1 Low-EMI Design Resources
        2. 7.2.1.2 Thermal Design Resources
        3. 7.2.1.3 PCB Layout Resources

1.4 Device Information

The LMG708B0 is a GaN switching DC/DC converter that features all of the functions necessary to implement a high-efficiency CC/CV synchronous buck regulator operating over a wide input voltage range from 5V to 80V. This easy-to-use converter integrates high-side and low-side GaN FETs capable of delivering 20A. Predictive dead time control is designed to minimize power dissipation during switching transitions. The LMG708B0 comes in a 4.5mm × 6mm, thermally enhanced, 22-pin eQFN package using a flip-chip routable leadframe (FCRLF) packaging technique.

Leveraging high-performance GaN power FETs, thermal management and EMI mitigation features, CC/CV operation, and small design size, the LMG708B0 represents an excellent point-of-load regulator choice for applications requiring the most efficient GaN design with useable current, lifetime reliability, and cost advantages. To optimize component selection and examine predicted efficiency performance across line and load ranges, download the LMG708B0 quickstart calculator.