TIDT398 February   2025

 

  1.   1
  2.   Description
  3.   Features
  4.   Applications
  5. 1Test Prerequisites
    1. 1.1 Voltage and Current Requirements
    2. 1.2 Required Equipment
    3. 1.3 Considerations
    4. 1.4 Dimensions
    5. 1.5 Test Setup
  6. 2Testing and Results
    1. 2.1 Efficiency and Loss Graphs
    2. 2.2 Efficiency Data
    3. 2.3 Thermal Images
    4. 2.4 Bode Plots
    5. 2.5 Conducted Emissions (CISPR 25) Pre-Compliance Scans
  7. 3Waveforms
    1. 3.1 Output Voltage Ripple
    2. 3.2 Load Transients
    3. 3.3 Start-Up Sequence

Features

  • High current for advanced driver assistance systems (ADAS), infotainment, and cluster applications
  • Peak conversion efficiency of 95.5% with 24VIN and 93.9% at 48VIN for the 5V output
  • LM5143-Q1 provides two-output control and gate drive in a single IC
  • Output voltage undershoot and overshoot 5% for 15A step and dump
  • Conducted emissions scans (precompliance) versus CISPR25 Class 5 limits provided for 48V input and near full loading on both outputs