SLVT221 June   2025

 

  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 Considerations
    4. 1.4 Dimensions
  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 and Shutdown Sequence
  9.   Trademarks

2.1 Efficiency Graphs

The efficiency of the system is demonstrated across an input voltage range of 20Vin to 60Vin. According to Figure 2-1, when operating at full 50A load, the efficiency is within the range of 90% to 94%. The efficiency graph is derived from the conversion loss versus load current graph (Figure 2-2), which also spans over the same 20Vin to 60Vin input range. A peak efficiency can be seen at 20Vin input voltage under 10A to 20A of load. While at the nominal 48Vin input voltage, the peak can be seen at 93% between 20A and 30A.

PMP23611 5Vout, System Efficiency Across Load Figure 2-1 5Vout, System Efficiency Across Load
PMP23611 5Vout, Conversion Loss Across Load Figure 2-2 5Vout, Conversion Loss Across Load