Datasheet

V 100 mV/div (-0.85V offset)
OUT
Time 100 µs/div
I 1 A/div
Load Step: 1 A to 3 A
Slew Rate: 1 A/µs
OUT
V = 12 V
IN
V 20 mV/div (-1.05V offset)
OUT
Time 1 µs/div
I 2 A/div
L
V 10 V/div
SW
www.ti.com Test Setup and Results
4.6 Load Transient Response
The TPS54427 response to load transient is shown in Figure 5. The current step is from 1 A to 3 A with an
input voltage of 12 V. Total peak-to-peak voltage variation is as shown.
Figure 5. TPS54427 Load Transient Response
4.7 Output Voltage Ripple
The TPS54427 output voltage ripple is shown in Figure 6. The output current is the rated full load of 4 A
and the input voltage is at 12 V.
Figure 6. TPS54427 Output Voltage Ripple
7
SLVU579–December 2011 TPS54427, 4-A, SWIFT™ Regulator— Evaluation Module
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