SLUAAJ5 April   2022 TPS565242 , TPS565247 , TPS566242 , TPS566247

 

  1.   Trademarks
  2. 1Introduction
  3. 2Improve Thermal Performance from IC Independently
  4. 3Improve Thermal Performance from PCB Board
  5. 4Thermal Performance
  6. 5Summary
  7. 6References

4 Thermal Performance

This topic introduces thermal performance of this EVM family.

Figure 4-1, Figure 4-2, and Figure 4-3 show TPS566242 thermal performance at different conditions. TPS566242 public EVM board is used to test. This EVM board has 4-layers which includes 2 internal layers with 1-oz copper and top, bottom layer with 2-oz copper. Test ambient temp is room temp.

Figure 4-1 TPS566242 12-V Vin to 1.05-V Vout at 6-A
Figure 4-3 TPS566242 12-V Vin to 5-V Vout at 6-A
Figure 4-2 TPS566242 12-V Vin to 3.3-V Vout AT 6-A

Figure 4-4, Figure 4-5, and Figure 4-6 show TPS565242 thermal performance at different conditions. TPS565242 public EVM board is used to test. This EVM board has 2-layers in which top and bottom layers are 2-oz copper.

Figure 4-4 TPS565242 12-V Vin to 1.05-V Vout at 5-A
Figure 4-6 TPS565242 12-V Vin to 5-V Vout at 5-A
Figure 4-5 TPS565242 12-V Vin to 3.3-V Vout at 5-A

Figure 4-7, Figure 4-8, and Figure 4-9 show TPS564242 thermal performance at different conditions. TPS564242 public EVM board is used to test. This EVM board has 2-layesr in which top and bottom layers are 2-oz copper.

Figure 4-7 TPS564242 12-V Vin to 1.05-V Vout at 4-A
Figure 4-9 TPS564242 12-V Vin to 5-V Vout at 4-A
Figure 4-8 TPS564242 12-V Vin to 3.3-V Vout at 4-A

Table 4-1 shows a summary of this efficiency and thermal performance.

Table 4-1 Efficiency and Thermal Performance
Part number Vin/V Vout/V Iout/A Efficiency Temperature
TPS566242 12 1.05 6 82.38% 80
TPS566242 12 3.3 6 91.67% 91
TPS566242 12 5 6 93.75% 97
TPS565242 12 1.05 5 83.94% 72
TPS565247 12 3.3 5 92.86% 81
TPS565247 12 5 5 94.63% 86
TPS564242 12 1.05 4 83.61% 64
TPS564242 12 3.3 4 93.50% 73
TPS564242 12 5 4 95.41% 75