SNOSCY4E March   2015  – October 2018 LMG5200

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
    1.     Device Images
      1.      Simplified Block Diagram
  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 Parameter Measurement Information
    1. 7.1 Propagation Delay and Mismatch Measurement
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Control Inputs
      2. 8.3.2 Start-up and UVLO
      3. 8.3.3 Bootstrap Supply Voltage Clamping
      4. 8.3.4 Level Shift
    4. 8.4 Device Functional Modes
  9. 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 VCC Bypass Capacitor
        2. 9.2.2.2 Bootstrap Capacitor
        3. 9.2.2.3 Power Dissipation
      3. 9.2.3 Application Curves
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Examples
  12. 12Device and Documentation Support
    1. 12.1 Device Support
      1. 12.1.1 Development Support
    2. 12.2 Documentation Support
      1. 12.2.1 Related Documentation
    3. 12.3 Receiving Notification of Documentation Updates
    4. 12.4 Community Resources
    5. 12.5 Trademarks
    6. 12.6 Electrostatic Discharge Caution
    7. 12.7 Glossary
  13. 13Mechanical, Packaging, and Orderable Information
    1. 13.1 Package Information

Package Options

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

9.2.1 Design Requirements

When designing a synchronous buck converter application that incorporates the LMG5200 power stage, some design considerations must be evaluated first to make the most appropriate selection. Among these considerations are the input voltages, passive components, operating frequency, and controller selection.Table 4 shows some sample values for a typical application. See Power Supply Recommendations, Layout, and Power Dissipation for other key design considerations for the LMG5200.

Table 4. Design Parameters

PARAMETER SAMPLE VALUE
Half-bridge input supply voltage, VIN 48 V
Output voltage, VOUT 12 V
Output current 8 A
VHB-HS bootstrap capacitor 0.1 uF, X5R
Switching frequency 1 MHz
Dead time 8 ns
Inductor 4.7 µH
Controller TPS40400