TIDT234 November   2022

 

  1.   Description
  2.   Features
  3.   Applications
  4. 1Test Prerequisites
    1. 1.1 Voltage and Current Requirements
    2. 1.2 Required Equipment
    3. 1.3 Considerations
    4. 1.4 Dimensions
  5. 2Testing and Results
    1. 2.1 Efficiency and Power Loss Graphs
    2. 2.2 Efficiency Data
    3. 2.3 Thermal Images
  6. 3Waveforms
    1. 3.1 Switching
    2. 3.2 Output Voltage Ripple
    3. 3.3 Load Transients
    4. 3.4 Start-up Sequence
    5. 3.5 Conducted EMI Performance

3.2 Output Voltage Ripple

The following set of figures show the output voltage ripple between PFM and FPWM modes, at 30-V input at no load and 1-A load conditions.

Note: See the Note in the Considerations section.
GUID-20210309-CA0I-K5G9-HNQT-GXXMV87BQZTF-low.pngFigure 3-7 Output Voltage Ripple, No Load, PFM-Mode
GUID-20210309-CA0I-KW6C-SSDS-RJ4NFMJC1GXK-low.pngFigure 3-8 Output Voltage Ripple, No Load, FPWM-Mode
GUID-20210309-CA0I-QRZ8-8ZZF-ZWVJ3CKQBSM8-low.pngFigure 3-9 Output Voltage Ripple, 1-A Load, PFM-Mode
GUID-20210309-CA0I-4QF8-V8BW-SCX6ZWKCZ1RK-low.pngFigure 3-10 Output Voltage Ripple, 1-A Load, FPWM-Mode
GUID-20210309-CA0I-HNJS-5WM7-3ZZHRLNMPFBX-low.pngFigure 3-11 Output Voltage Ripple, 1-A Load, Zoomed Out, PFM-Mode
GUID-20210309-CA0I-P7V5-M35G-ZMDFXCX4SHVJ-low.pngFigure 3-12 Output Voltage Ripple, 1-A Load, Zoomed Out, FPWM-Mode