SLUUC03A February   2019  – December 2022 TPS566235

 

  1.   TPS566235EVM-036 evaluation module
  2.   Trademarks
  3. 1Introduction
  4. 2Specification Summary
  5. 3Modifications
    1. 3.1 Output Voltage Setpoint
    2. 3.2 Mode Selection
  6. 4Schematic and Board layout
    1. 4.1 Schematic
    2. 4.2 Board Layout
  7. 5EVM Test Setup
    1. 5.1 Connectors and Jumpers Description and Placement
    2. 5.2 Start-up Procedure
  8. 6Test Waveforms
    1. 6.1 Power Up
    2. 6.2 Power Down
    3. 6.3 Output Voltage Ripple
    4. 6.4 Load Transient Response
    5. 6.5 Thermal
  9. 7List of Materials and Reference
    1. 7.1 List of Materials
    2. 7.2 Reference
  10. 8Revision History

Board Layout

Figure 4-2 through Figure 4-6 illustrates the TPS566235EVM-036 board layout. The top layer contains the main power traces for VIN, VOUT, and SW, there is a large area filled with ground. The internal layer-1 and layer-2 are ground plane. The bottom layer is another ground plane. The ground traces of each layer are connected together with multiple VIAs. The top and bottom layers are 2-oz copper and internal layers are 1-oz copper.

GUID-250CD17F-8275-4D31-B6AC-37DF2C052D50-low.gifFigure 4-2 Component Placement (Top Layer)
GUID-E8573B31-90E4-455C-8D87-29D51F6CB8D2-low.gifFigure 4-3 Board Layout (Top Layer)
GUID-1869E870-4C46-424C-A11D-707F74A18772-low.gifFigure 4-4 Board Layout (Second Layer)
GUID-D929A709-D3A4-4973-BEF2-FA146281F94E-low.gifFigure 4-5 Board Layout (Third Layer)
GUID-096B61D6-165F-48E7-BF5D-E013AA16A8C1-low.gifFigure 4-6 Board Layout (Bottom Layer)