Texas Instruments TPS543820EVM, User Manual, Page: 16 / 38

3.5 Output Voltage Ripple
Figure 3-16 through Figure 3-19 show the TPS543820EVM output voltage ripple. The load currents are no load
and 6 A. V
IN
= 12 V. The VOUT voltage is measured using TP10 for U1 and TP29 for U2.
Time (1 µs/div)
VOUT AC (10 mV/div)
SW (5 V/div)
Figure 3-16. U1 Output Ripple – No Load
Time (1 µs/div)
VOUT AC (10 mV/div)
SW (5 V/div)
Figure 3-17. U1 Output Ripple – 6-A Load
Time (1 µs/div)
VOUT AC (10 mV/div)
SW (5 V/div)
Figure 3-18. U2 Output Ripple – No Load
Time (1 µs/div)
VOUT AC (10 mV/div)
SW (5 V/div)
Figure 3-19. U2 Output Ripple – 6-A Load
Test Setup and Results www.ti.com
16 TPS543820EVM SWIFT™ Step-Down Converter Evaluation Module User's
Guide SLUUCE9A – DECEMBER 2020 – REVISED APRIL 2021
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