Datasheet

-180
-120
-60
0
60
120
180
-60
-40
-20
0
20
40
60
10 100 1000 10000 100000 1000000
Phase - Degrees
Gain - dB
Frequency - Hz
C005
Gain
Phase
-180
-120
-60
0
60
120
180
-60
-40
-20
0
20
40
60
10 100 1000 10000 100000 1000000
Phase - Degrees
Gain - dB
Frequency - Hz
C005
Gain
Phase
Test Setup and Results www.ti.com
2.6 Loop Characteristics
Figure 6 shows the TPS56921EVM-188 loop-response characteristics when the output voltage is set by
the external resistor divider network. Gain and phase plots are shown for V
IN
voltage of 12 V. Load current
for the measurement is 4 A.
Figure 6. TPS56921EVM-188 Loop Response, V
OUT
Set by Resistor Divider
Figure 7 shows the TPS56921EVM-188 loop-response characteristics when the output voltage is set by
the external resistor divider network. Gain and phase plots are shown for V
IN
voltage of 12 V. Load current
for the measurement is 4 A.
Figure 7. TPS56921EVM-188 Loop Response, V
OUT
Set by I
2
C Interface
8
TPS56921EVM-188, 9-A, SWIFT™ Regulator Evaluation Module SLVU793–October 2012
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