3.5 Output Voltage Ripple
show the TPS543620EVM 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
SLVUBQ1A – AUGUST 2020 – REVISED MAY 2021
TPS543620 SWIFT™ Step-Down Converter Evaluation Module User's Guide
17
Copyright © 2021 Texas Instruments Incorporated
