Thermal Performance; Figure 3-29. U1 Thermal Performance - 20-A Load And U2 Off; Figure 3-30. U2 Thermal Performance - 20-A Load And U1 Off; Figure 3-31. U1 Thermal Performance - Both 20-A Load - Texas Instruments TPS543B22EVM User Manual

Test Setup and Results

3.12 Thermal Performance

Figure 3-29 through Figure 3-32
and Figure 3-30 have only one TPS543B22 on and loaded.
loaded. A minimum of a 10 minute soak time was used before taking each measurement.
Figure 3-29. U1 Thermal Performance – 20-A Load
and U2 Off
Figure 3-31. U1 Thermal Performance – Both 20-A
20 TPS543B22EVM SWIFT Step-Down Converter Evaluation Module
show the temperature rise of the TPS543B22 ICs at full 20-A load.
Load
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Figure 3-31 and Figure 3-32
Figure 3-30. U2 Thermal Performance – 20-A Load
and U1 Off
Figure 3-32. U2 Thermal Performance – Both 20-A
Load
SLUUCH6B – SEPTEMBER 2022 – REVISED SEPTEMBER 2023
www.ti.com
Figure 3-29
have both TPS543B22s
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