Output Current (A)
Efficiency
(%)
0
0.4
0.8
1.2
1.6
2
2.4
2.8
60
65
70
75
80
85
90
95
100
f
SW
= 1000 kHz
f
SW
= 1500 kHz
f
SW
= 2200 kHz
V
IN
= 9 V
V
OUT
= 1 V
R
MODE
= 60.4 kΩ
Figure 3-5. U2 Efficiency – 1-V Output and Low Current Limit with Different Switching Frequencies
Test Setup and Results
SLVUBQ1A – AUGUST 2020 – REVISED MAY 2021
TPS543620 SWIFT™ Step-Down Converter Evaluation Module User's Guide
13
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