Datasheet

Loop Characteristics
2-11
Test Setup and Results
Figure 2−14. Measured Loop Response, TPS54872, V
I
= 4 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
V
I
= 4 V
Phase − Degrees
Figure 2−15. Measured Loop Response, TPS54872, 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
V
I
= 6 V
Phase − Degrees