Datasheet

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-0.15
-0.1
-0.05
0
0.05
0.1
0.15
6 7 8 9 10 11 12 14 15 16 17
V - Input Voltage - V
I
Output Regulation - %
I = 0 A
O
I = 2.5 A
O
I = 5 A
O
13
2.4 Load Transients
V = 12 V, V = 3.3 V,
f = 700 kHz,
I O
S
V = 50 mV/div (ac) coupled
O
I = 1 A/div,
1.25 A to 3.75 A
Step
O
Time - 200 s/divm
Test Setup and Results
Figure 3. Line Regulation
The TPS54550EVM-158 response to load transients is shown in Figure 4 . The current step is from 25% to
75% of maximum rated load. Total peak-to-peak voltage variation is as shown, including ripple and noise
on the output.
Figure 4. Load Transient Response, TPS54550
SLVU151 – March 2006 TPS54550EVM-158 SWIFT™ Regulator Evaluation Module 5
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