TIDT359
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
3
Waveforms
3.1
Switching
3.2
Output Voltage Ripple
3.3
Input Voltage Ripple
3.4
Load Transients
3.5
Start-Up Sequence
3.6
Voltage Supervisor
3.7
Watchdog
2.4
Bode Plots
Bode plots are shown in the following figures.
12 V
IN
, 0.6-A load current: fco 25.2 kHz, 66 deg phase margin, –23 dB gain margin
18 V
IN
, 0.6-A load current: fco 24.7 kHz, 67 deg phase margin, –23 dB gain margin
24 V
IN
, 0.6-A load current: fco 24.4 kHz, 65 deg phase margin, –23 dB gain margin
Figure 2-4
Bode Plot V
OUT1
= 5 V
12 V
IN
, 0.6-A load current: fco 31.0 kHz, 68 deg phase margin, –23 dB gain margin
18 V
IN
, 0.6-A load current: fco 29.3 kHz, 66 deg phase margin, –22 dB gain margin
24 V
IN
, 0.6-A load current: fco 31.1 kHz, 63 deg phase margin, –24 dB gain margin
Figure 2-5
Bode Plot V
OUT2
= 3.3 V