SNVU797D
April 2022 – June 2025
LM5177
1
Description
Features
4
1
Evaluation Module Overview
1.1
Introduction
1.2
Kit Contents
1.3
Specification
2
Hardware
2.1
Connector, Test Point, and Selection Switch Descriptions
2.1.1
Connector Descriptions
2.1.2
Jumper Descriptions
2.1.3
Test Point Descriptions
2.1.4
Selection Switch Descriptions
2.1.4.1
S1 and S2 CFG setting
2.1.5
Current Monitor and Current Limiter Configuration
2.1.5.1
Current Monitor and Current Limiter Configuration
2.1.5.2
Current Limiter Configuration
2.2
Test Setup and Procedure
2.2.1
Test Setup
2.2.2
Test Procedure
2.2.3
Precautions
3
Implementation Results
3.1
Test Data and Performance Curves
3.1.1
Thermal Performance
3.1.2
Efficiency
3.1.3
Steady State Waveforms
3.1.4
Step Load Response
4
Hardware Design Files
4.1
Schematic
4.2
Optional Components
4.3
Board Layout
4.4
Bill of Materials
5
Additional Information
5.1
Trademarks
6
Revision History
1.3
Specification
Table 1-1 Board Specifications
Parameter
Value
Input voltage
4.2V to 36V
Output voltage
16V
Maximum output current
9.4A
Default switching frequency
400kHz
Board size (four layers)
5.6 inch × 3.2 inch
Smooth buck-boost operation
Ultra high (> 97%) peak power conversion efficiency
Adjustable output voltage using feedback resistor divider selection
Programmable switching frequency with optional synchronization (SYNC)
Cycle-by-cycle overcurrent protection
Optional hiccup mode overload protection
Programmable input undervoltage lockout (UVLO) threshold and hysteresis
Output constant voltage (CV) and constant current (CC) options
Optional frequency dithering for reduced EMI
Setting of configuration resistor R
CFG
through DIP switches