2.7 Output Voltage Ripple
shows the TPS54521EVM-607 output voltage ripple. The output current is the rated full load of 5 A
and V
IN
= 12 V. The ripple voltage is measured directly across the output capacitors.
Time = 1 μsec / div
Vout = 50 mV / div (AC coupled)
PH = 10 V / div
Inductor Current = 2 A / div
Figure 2-7. TPS54521EVM-607 Output Ripple
2.8 Input Voltage Ripple
shows the TPS54521EVM-607 input voltage ripple. The output current is the rated full load of 5 A and
V
IN
= 12 V. The ripple voltage is measured directly across the input capacitors.
Time = 1 μsec / div
Vout = 200 mV / div (AC coupled)
PH = 10 V / div
Inductor Current = 2 A / div
Figure 2-8. TPS54521EVM-607 Input Ripple
Test Setup and Results
SLVU379A – AUGUST 2010 – REVISED AUGUST 2021
TPS54521 Step-Down Converter Evaluation Module User's Guide
9
Copyright © 2021 Texas Instruments Incorporated