V
OUT
= 1 V
f
SW
= 1500 kHz
Figure 3-1. U1 Efficiency
V
OUT
= 1 V
f
SW
= 1000 kHz
Figure 3-2. U2 Efficiency – Default Configuration
V
IN
= 12 V
f
SW
= 1000 kHz
Figure 3-3. U2 Efficiency – 1000-kHz Switching
Frequency with Different Output Voltages
V
IN
= 12 V
V
OUT
= 1 V
Figure 3-4. U2 Efficiency – 1-V Output with
Different Switching Frequencies
V
IN
= 12 V
V
OUT
= 1.8 V
Figure 3-5. U2 Efficiency – 1.8-V Output with Different Switching Frequencies
Test Setup and Results
12
TPS543820EVM SWIFT™ Step-Down Converter Evaluation Module User's
Guide
SLUUCE9A – DECEMBER 2020 – REVISED APRIL 2021
Copyright © 2021 Texas Instruments Incorporated