SLUAAT4 November   2023 TPS543320 , TPS543620 , TPS543820 , TPSM843320 , TPSM843620 , TPSM843820

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
  5. 2Features Comparison
    1. 2.1 Design Size
      1. 2.1.1 MicroSiP™ Packaging
      2. 2.1.2 PCB Design Size Comparison
      3. 2.1.3 Minimizing External Components
  6. 3Performance
    1. 3.1 Flexibility and Application Optimization
  7. 4Design Complexity
  8. 5Total Design Cost
  9. 6Summary
  10. 7References

PCB Design Size Comparison

The external components for both the TPS543620 and TPSM843620 PCB design size were selected based on data sheet recommendations for identical applications. The selected design parameters are shown in Table 2-1.

Table 2-1 Design Parameters
ParameterValue
Input voltage range (VIN)4 to 18 V, 12 V nominal
Output voltage (VOUT)1.0 V
Output current rating (IOUT)6 A
Switching Frequency (fSW)1000 kHz
Input Capacitance (CIN)20.2 µF
Output Capacitance (COUT)94 µF
Output Inductance (LOUT)470 nH
GUID-20231117-SS0I-TX2D-GNFT-LX2C847JD1MD-low.pngFigure 2-2 TPS543620 PCB Design Size

The total design size of the TPS543620 converter circuit design was measured to be approximately 100.774 mm2.

GUID-20231117-SS0I-RNGH-JSRG-ZFXVCWFVC64C-low.pngFigure 2-3 TPSM843620 PCB Design Size

The total design size of the TPSM843620 module circuit design was measured to be approximately 66.048 mm2.

GUID-20231117-SS0I-LD24-RRVK-8R8JL0C8JKK9-low.pngFigure 2-4 PCB Design Size Overlay Comparison

When comparing the PCB design size of both the TPS543620 converter and the TPSM843620 module, it is clear that the module has a smaller design size than the converter by about 34.5%. This noticeable difference is because the module uses a small MicroSiP package and reduces the number of external components to significantly decrease the final design size.