SLVAFK5A
December 2023 – February 2024
LM5177
1
Abstract
Trademarks
1
Introduction
2
Parallel or Multiphase Power Stages
2.1
Paralleling Power Stages
2.1.1
Load Balancing Requirement
2.2
Clock Generation
2.3
Interconnection of the Power Stages
3
Application Implementation
3.1
Soft-start Capacitor
3.2
Compensation
3.3
Input and Output Capacitor
3.4
Usage of the Average Current Sensor
4
Test Results
4.1
Load Current Balancing
4.2
Inductor Current
4.3
Thermal Images
4.3.1
Dual Phase Operation at Variable Load
4.3.2
Comparison Between Single Phase and Dual Phase Operation
5
Summary
6
References
7
Revision History
6
References
Texas Instruments,
LM5177 80-V Wide VIN Bidirectional 4-Switch Buck-Boost Controller
data sheet.
Texas Instruments,
TLC555 Component Calculator Tool
.
Texas Instruments,
How to Design Synchronous, Non-inverting 4-Switch Buck-Boost Converter Using the LM5177x
application note.
Texas Instruments,
LM5177 BuckBoost Quickstart Calculator Tool
.
Texas Instruments,
Constant Current Operation Using the Internal Current Limiter
application brief.