SNVU820
February 2022
LM5149-Q1
Trademarks
1
High Density EVM Description
1.1
Typical Applications
1.2
Features and Electrical Performance
2
EVM Characteristics
3
Application Circuit Diagram
4
EVM Photo
5
Test Setup and Procedure
5.1
EVM Connections
5.2
Test Equipment
5.3
Recommended Test Setup
5.3.1
Input Connections
5.3.2
Output Connections
5.4
Test Procedure
5.4.1
Line and Load Regulation, Efficiency
6
Test Data and Performance Curves
6.1
Conversion Efficiency
6.2
Operating Waveforms
6.2.1
Switching
6.2.2
Load Transient Response
6.2.3
Line Transient Response
6.2.4
Start-Up and Shutdown With EN
6.2.5
Start-Up and Shutdown with VIN
6.3
Bode Plot
6.4
CISPR 25 EMI Performance
6.5
Thermal Performance
7
EVM Documentation
7.1
Schematic
7.2
List of Materials
7.3
PCB Layout
7.4
Component Drawings
8
Device and Documentation Support
8.1
Device Support
8.1.1
Development Support
8.2
Documentation Support
8.2.1
Related Documentation
8.2.1.1
PCB Layout Resources
8.2.1.2
Thermal Design Resources
8.2.1
Related Documentation
For related documentation see the following:
LM5149-Q1 3.5-V to 80-V Synchronous Buck DC/DC Controller Data Sheet
Improve High-current DC/DC Regulator Performance for Free with Optimized Power Stage Layout Application Brief
Reduce Buck Converter EMI and Voltage Stress by Minimizing Inductive Parasitics Analog Applications Journal
AN-2162 Simple Success with Conducted EMI from DC-DC Converters Application Report
White Papers:
Valuing Wide V
IN
, Low EMI Synchronous Buck Circuits for Cost-driven, Demanding Applications
An Overview of Conducted EMI Specifications for Power Supplies
An Overview of Radiated EMI Specifications for Power Supplies