TIDT348 august   2023

 

  1.   1
  2.   Description
  3.   Features
  4.   Applications
  5. 1Test Prerequisites
    1. 1.1 Voltage and Current Requirements
  6. 2Testing and Results
    1. 2.1 Efficiency Graphs
    2. 2.2 Efficiency Data
    3. 2.3 Thermal Images
    4. 2.4 Bode Plots
  7. 3Waveforms
    1. 3.1 Switching Waveforms
    2. 3.2 Output Voltage Ripple
    3. 3.3 Load Transients
    4. 3.4 Start-Up Sequence

2.1 Efficiency Graphs

Figure 3-19 shows the end-to-end efficiency of the PMP23331 with the 5-V output loaded with 0 A and Figure 2-2 with the 5-V output loaded with 0.2 A. Note that for 400-V DC input, the input voltage is applied directly across C5.

GUID-20230809-SS0I-QNHM-HRLD-2JC3BGNHPDKH-low.png Figure 2-1 PMP23331 Efficiency Graph 5-V Unloaded
GUID-20230809-SS0I-KLPH-BQ9L-MF9JDVJRD54D-low.png Figure 2-2 PMP23331 Efficiency Graph 5-V Loaded at 0.2 A