TIDT343
October 2023
1
Description
Features
Applications
1
Test Prerequisites
1.1
Voltage and Current Requirements
1.2
Dimensions
2
Testing and Results
2.1
Efficiency Graphs
2.2
Efficiency Data
2.3
Thermal Images
2.4
Bode Plots
2.5
EMI
3
Waveforms
3.1
Switching
3.2
Output Voltage Ripple
3.3
Input Voltage Ripple
3.4
Load Transients
3.5
Start-Up Sequence
2.4
Bode Plots
Bode plots are shown in the following figures.
6.0 V
IN
, 3.0 A load current: fco 20.2 kHz, 62 deg phase margin, –19 dB gain margin
12.0 V
IN
, 3.0 A load current: fco 23.1 kHz, 66 deg phase margin, –18 dB gain margin
26.0 V
IN
, 3.0 A load current: fco 22.2 kHz, 67 deg phase margin, –18 dB gain margin
Figure 2-4
Bode Plot V
OUT1
= 3.3 V
3.3 V
IN
, 1.0 A load current: fco 100. 5 kHz, 72.84 deg phase margin, –17 dB gain margin
Figure 2-5
Bode Plot V
OUT2
= 1.2 V