Texas Instruments TPS54331, Руководство пользователя

Страница: 7 / 19

2.6 Loop Characteristics
The TPS54331EVM-232 loop-response characteristics are shown in Figure 2-6 . Gain and phase plots are
shown for VIN voltage of 15 V. Load current for the measurement is 1.5 A.
-30
-20
-10
0
10
20
30
40
50
60
70
f - Frequency - Hz
-90
-60
-30
0
30
60
90
120
150
180
210
Phase-deg
10 100
1k 10k
100k 1M
Gain-dB
Figure 2-6. TPS54331 Loop Response
2.7 Output Voltage Ripple
The TPS54331EVM-232 output voltage ripple is shown in Figure 2-7 . The output current is the rated full load of
3 A. Voltage is measured directly across output capacitors.
V
OUT
PH
t - Time - 1 s/div
m
Figure 2-7. TPS54331 Output Ripple
www.ti.com Test Setup and Results
SLVU247A – JULY 2008 – REVISED OCTOBER 2021
Submit Document Feedback
TPS54331 Step-Down Converter Evaluation Module User's Guide 7
Copyright © 2021 Texas Instruments Incorporated