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2.5
Load Transients
Figure 5
shows the TPS54335AEVM-010 response to load transients. The current step is from 25% to
75% of maximum rated load at 24-V input. Total peak-to-peak voltage variation is as shown, including
ripple and noise on the output.
V
OUT
I
= 1 A / div
OUT
2.6
Loop Characteristics
Figure 6
shows the TPS54335AEVM-010 loop-response characteristics. Gain and phase plots are shown
for V
voltage of 24 V. Load current for the measurement is 1.5 A.
IN
60
40
20
0
-20
-40
-60
10
SLVUB76 – July 2017
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= 200 mV / div (ac coupled)
Load step = 0.75 A - 2.25 A, slew rate = 500 mA / µsec
Time = 200 µsec / div
Figure 5. TPS54335AEVM-010 Transient Response
100
1000
Figure 6. TPS54335AEVM-010 Loop Response
Copyright © 2017, Texas Instruments Incorporated
Gain
10000
Frequency - Hz
TPS54335AEVM-010 3-A Regulator Evaluation Module
Test Setup and Results
180
120
Phase
60
0
-60
-120
-180
100000
1000000
C005
7
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