
2.8 Input Voltage Ripple
The TPS54332EVM-416 input voltage ripple is shown in
. The output current is the rated full load of
3.5 A and V
IN
= 12 V. The ripple voltage is measured directly across the input capacitors.
t - Time - 1
s/div
m
100 mV/div
5 V/div
PH
V
IN
Figure 2-8. TPS54332EVM-416 Input Ripple
2.9 Powering Up
The start-up waveform is shown in
OUT
, and the bottom trace shows V
IN
. The
input voltage is 12 V and there is no load.
t - Time - 2 ms/div
1 V/div
5 V/div
V
OUT
V
IN
Figure 2-9. TPS54332EVM-416 Start-Up Relative to V
IN
Test Setup and Results
SLVU276A – FEBRUARY 2009 – REVISED OCTOBER 2021
TPS54332 Step-Down Converter Evaluation Module User's Guide
9
Copyright © 2021 Texas Instruments Incorporated