SLVUD74A April   2025  – June 2025 LM72880-Q1

 

  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 Specification
    4. 1.4 Device Information
  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
        3. 2.1.3.3 I2C Connections
      4. 2.1.4 Test Procedure
        1. 2.1.4.1 Graphic User Interface (GUI)
          1. 2.1.4.1.1 Quick Overview
        2. 2.1.4.2 Basic Test Procedure
  9. 3Implementation Results
    1. 3.1 Test Data and Performance Curves
      1. 3.1.1 Efficiency
      2. 3.1.2 Operating Waveforms
        1. 3.1.2.1 Start-Up and Shutdown
        2. 3.1.2.2 Switching
        3. 3.1.2.3 Load Transient (CV), ISET Modulation (CC)
      3. 3.1.3 Thermal Performance
      4. 3.1.4 EMI Performance
  10. 4Hardware Design Files
    1. 4.1 Schematic
    2. 4.2 PCB Layout
    3. 4.3 Bill of Materials
  11. 5Additional Information
    1. 5.1 Trademarks
  12. 6Device and Documentation Support
    1. 6.1 Device Support
      1. 6.1.1 Development Support
    2. 6.2 Documentation Support
      1. 6.2.1 Related Documentation
        1. 6.2.1.1 PCB Layout Resources
        2. 6.2.1.2 Thermal Design Resources
  13. 7Revision History

1.3 Specification

Table 1-1 table lists the electrical characteristics of the evaluation module. See the LM72880-Q1 product folder for more information about the device specifications. Efficiency and other performance metrics can change based on operating input voltage, load currents, externally-connected output capacitors, and other parameters. The recommended airflow is 200 LFM when operating.

Table 1-1 Electrical Performance Characteristics
Parameter Test Conditions MIN TYP MAX Unit
INPUT CHARACTERISTICS
Input operating range, VSUPPLY VIN+, VIN– terminal 24 48 70 V
Input current, ISUPPLY 5 A
Input current, no load PFM, BIAS_EN = 0, EN = VIN, VLOAD = 20V, R7 removed, no I2C communication VSUPPLY = 24V 116 µA
VSUPPLY = 36V 116
VSUPPLY = 48V 117
VSUPPLY = 60V 119
OUTPUT CHARACTERISTICS
Rated output voltage, VLOAD CV mode 20 V
Average inductor current, ILOUT CC mode 0.5 5 A
SYSTEM CHARACTERISTICS
Switching frequency, fSW 400 kHz
Full load efficiency ILOAD = 5A VSUPPLY = 24V 98.2%
VSUPPLY = 36V 97.7%
VSUPPLY = 48V 97.1%
VSUPPLY = 60V 96.6%