TIDT260 March   2022

 

  1.   Description
  2.   Features
  3.   Applications
  4. 1Test Prerequisites
    1. 1.1 Voltage and Current Requirements
    2. 1.2 Considerations
    3. 1.3 Dimensions
  5. 2Testing and Results
    1. 2.1 Efficiency Graphs
    2. 2.2 Load Regulation
    3. 2.3 Line Regulation
    4. 2.4 Thermal Images
      1. 2.4.1 8-V Input Voltage
      2. 2.4.2 18-V Input Voltage
    5. 2.5 Bode Plots
  6. 3Waveforms
    1. 3.1 Switching
    2. 3.2 Output Voltage Ripple
    3. 3.3 Input Voltage Ripple
    4. 3.4 Load Transients
    5. 3.5 Start-Up Sequence
    6. 3.6 Shutdown Sequence
    7. 3.7 Spread Spectrum Feature

3.4 Load Transients

Load transient response is shown in the following figures.

GUID-20220221-SS0I-P8VM-4FQ1-BPX3HG0J96N1-low.jpgFigure 3-9 Transient 0.4 A to 0.8 A at 8-V Input Voltage

VOUT

  • 50 mV / div
  • 10-kHz bandwidth

IOUT

  • 0.5 A / div
  • full bandwidth

1 ms / div

  • excellent transient response 1% of output voltage
GUID-20220221-SS0I-S373-WC0R-T1JWM8CFDWNK-low.jpg Figure 3-10 Transient 0.4 A to 0.8 A at 18-V Input Voltage

VOUT

  • 20 mV / div
  • 10-kHz bandwidth

IOUT

  • 0.5 A / div
  • full bandwidth

1 ms / div