Texas Instruments TPS54225, User Manual

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2.6 Load Transient Response
The TPS54225EVM-538 response to load transient is shown in Figure 2-4 . The current step is from 0.5 A to 2 A.
Total peak to peak voltage variation is as shown.
V = 50 mV/div(AC coupled)
O
I = 500 mA/div
0.5 to 2 A Load Step
O
Time - 200 /div
m
s
Figure 2-4. TPS54225EVM-538 Load Transient Response
2.7 Output Voltage Ripple
The TPS54225EVM-538 output voltage ripple is shown in Figure 2-5 . The output current is the rated full load of
2A.
V = 20 mV/div(AC coupled)
O
Switching Node = 5 V/div
Time - 1 /div
m
s
Figure 2-5. TPS54225EVM-538 Output Voltage Ripple
Test Setup and Results www.ti.com
6 TPS54225 Step-Down Converter Evaluation Module User's Guide SLVU337A – NOVEMBER 2009 – REVISED OCTOBER 2021
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