SLVT237 December   2025

 

  1.   1
  2.   Description
  3.   Resources
  4.   Features
  5.   Applications
  6.   6
  7. 1Test Prerequisites
    1. 1.1 Voltage and Current Requirements
    2. 1.2 Required Equipment
    3. 1.3 Safety Considerations
  8. 2Testing and Results
    1. 2.1 Efficiency Graphs
    2. 2.2 Efficiency Data
    3. 2.3 Thermal Images
    4. 2.4 Bode Plots
  9. 3Waveforms
    1. 3.1 Switching
    2. 3.2 Output Voltage Ripple
    3. 3.3 Load Transients
    4. 3.4 Startup

2.4 Bode Plots

The Bode plot shown in Figure 2-4 was created at a 50A load. The Bode plots for different loads exhibit similar results with the main difference being the slight appearance of noise. Thus, one Bode plot is shown for a 48V input voltage.

The 12V output at 50A load Bode plot results in a gain margin of 15dB, a phase margin of 53°, and a crossover of 23kHz.

PMP23595 Bode Plot, 48V Input, 12V Output at 50A Load Figure 2-4 Bode Plot, 48V Input, 12V Output at 50A Load