Texas Instruments SWIFT TPS54350EVM-235, Руководство пользователя, Страница: 20 / 32

Loop Characteristic
2-7 Test Setup and Results
2.6 Loop Characteristic
The TPS54350EVM−235 loop response characteristics are shown in
Figure 2−7 and Figure 2−8. Gain and phase plots are shown for each device
at minimum and maximum operating voltage.
Figure 2−7. Measured Loop Response, TPS54350, V
I
= 6 V
−60
−50
−40
−30
−20
−10
0
10
20
30
40
50
60
100 1 k 10 k 100 k 1 M
−180
−150
−120
−90
−60
−30
0
30
60
90
120
150
180
Phase
Gain
Gain − dB
f − Frequency − Hz
MEASURED LOOP RESPONSE
Phase − deg
Figure 2−8. Measured Loop Response, TPS54350, V
I
= 18 V
−60
−50
−40
−30
−20
−10
0
10
20
30
40
50
60
100 1 k
10 k 100 k 1 M
−180
−150
−120
−90
−60
−30
0
30
60
90
120
150
180
Phase
Gain
Gain − dB
f − Frequency − Hz
MEASURED LOOP RESPONSE
Phase − deg