SLUUCH6B september 2022 – september 2023 TPS543B22
- 1
- Abstract
- Trademarks
- 1Introduction
- 2Configurations and Modifications
-
3Test Setup and Results
- 3.1 Input/Output Connections
- 3.2 Efficiency
- 3.3 Output Voltage Regulation
- 3.4 Load Transient and Loop Response
- 3.5 Output Voltage Ripple
- 3.6 Input Voltage Ripple
- 3.7 Synchronizing to a Clock
- 3.8 Start-up and Shutdown with EN
- 3.9 Start-up and Shutdown with VIN
- 3.10 Start-up Into Pre-Bias
- 3.11 Hiccup Current Limit
- 3.12 Thermal Performance
- 4Board Layout
- 5Schematic and Bill of Materials
- 6Revision History
3.12 Thermal Performance
Figure 3-29 through Figure 3-32 show the temperature rise of the TPS543B22 ICs at full 20-A load. Figure 3-29 and Figure 3-30 have only one TPS543B22 on and loaded. Figure 3-31 and Figure 3-32 have both TPS543B22s 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 Load 
Figure 3-30 U2 Thermal Performance – 20-A Load and U1 Off
Figure 3-32 U2 Thermal Performance – Both 20-A Load