Texas Instruments TPS56921 Synchronous Step-Down Converter Evaluation Module TPS56921EVM-188 TPS56921EVM-188 Datenbogen
Produktcode
TPS56921EVM-188
-180
-120
-60
0
60
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-60
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P
h
a
se
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s
Ga
in
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d
B
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
P
h
a
se
-
Deg
re
e
s
Ga
in
-
d
B
Frequency - Hz
C005
Gain
Phase
Test Setup and Results
2.6
Loop Characteristics
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
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
Copyright © 2012, Texas Instruments Incorporated