SLVT243 March   2026

 

  1.   1
  2.   Description
  3.   Resources
  4.   Features
  5.   Applications
  6. 1Test Prerequisites
    1. 1.1 Voltage and Current Requirements
    2. 1.2 Required Equipment
    3. 1.3 Safety Considerations
  7. 2Testing and Results
    1. 2.1 Efficiency Graphs
    2. 2.2 Efficiency Data
    3. 2.3 Thermal Images
    4. 2.4 Bode Plots
  8. 3Waveforms
    1. 3.1 Switching
    2. 3.2 Output Voltage Ripple
    3. 3.3 Load Transients
    4. 3.4 Start-up

3.4 Start-up

Figure 3-3 and Figure 3-5 show the output voltage start-up waveforms at 48V input and 5V output with the converter start-up up into no load and into a 25A constant-resistance load using an electronic load.

PMP23680 Start-up Into No Load, 48V Input, 5V Output, Start-up Initiated by Input Supply Power-Up Figure 3-4 Start-up Into No Load, 48V Input, 5V Output, Start-up Initiated by Input Supply Power-Up
PMP23680 Start-up Into 25A Constant-Resistance Load, 48V input, 5V Output, Start-up Initiated by Input Supply Power-Up Figure 3-5 Start-up Into 25A Constant-Resistance Load, 48V input, 5V Output, Start-up Initiated by Input Supply Power-Up