-0.1
-0.08
-0.06
-0.04
-0.02
0
0.02
0.04
0.06
0.08
0.1
9
12
15
18
21
I
= 1.5 A
O
I
= 3 A
O
V - Input Voltage - V
I
OutputRegulation-%
LINE REGULATION
vs
INPUT VOLTAGE
I
= 0 A
O
Figure 2-6. TPS5431 Line Regulation
2.5 Load Transients
The TPS5430EVM-173 and TPS5431EVM-173 response to load transients is shown in
. The current step is from 25% to 75% of maximum rated load. Total peak-to-peak voltage variation is as
shown, including ripple and noise on the output.
V
= 50 mV /Div (AC-Coupled)
OUT
I
= 1 A/Div
OUT
Time = 200 µs/Div
Figure 2-7. PS5430 Transient Response
Test Setup and Results
SLVU157A – MARCH 2006 – REVISED OCTOBER 2021
TPS5430 and TPS5431 Step-Down Converter Evaluation Module User's
Guide
7
Copyright © 2021 Texas Instruments Incorporated
