SLVU491A November   2011  – October 2021 TPS54294

 

  1.   Trademarks
  2. 1Introduction
  3. 2Performance Specification Summary
  4. 3Modifications
    1. 3.1 Output Voltage Setpoint
    2. 3.2 Output Filter and Closed-Loop Response
  5. 4Test Setup and Results
    1. 4.1 Input/Output Connections
    2. 4.2 Start-Up Procedure
    3. 4.3 Efficiency
      1. 4.3.1 Efficiency of Converter 1
      2. 4.3.2 Efficiency of Converter 2
    4. 4.4 Load Regulation
      1. 4.4.1 Load Regulation of Converter 1
      2. 4.4.2 Load Regulation of Converter 2
    5. 4.5 Line Regulation
      1. 4.5.1 Line Regulation Converter 1
      2. 4.5.2 Line Regulation Converter 2
    6. 4.6 Load Transient Response
      1. 4.6.1 Load Transient Response Converter 1
      2. 4.6.2 Load Transient Response Converter 2
    7. 4.7 Output Voltage Ripple
      1. 4.7.1 Output Voltage Ripple Converter 1
      2. 4.7.2 Output Voltage Ripple Converter 2
    8. 4.8 Input Voltage Ripple
    9. 4.9 Start-Up and Shutdown
      1. 4.9.1 Start-Up and Shutdown Converter 1
      2. 4.9.2 Start-Up and Shutdown Converter 2
  6. 5Board Layout
    1. 5.1 Layout
  7. 6Schematic, Bill of Materials, and Reference
    1. 6.1 Schematic
    2. 6.2 Bill of Materials
    3. 6.3 Reference
  8. 7Revision History

4.7.1 Output Voltage Ripple Converter 1

The output voltage ripple of converter 1 on the TPS54294EVM is shown in Figure 4-9. The output current is the rated full load of 2 A.

GUID-A523E6F1-5975-4435-AF45-9E682D9D7EF0-low.gifFigure 4-9 TPS54294EVM Converter 1 Output Voltage Ripple

The output voltage ripple of converter 1 on the TPS54294EVM at the start of the Eco-mode™ operation is shown in Figure 4-10 . The output current is reduced to around 200 mA.

GUID-EAC87E3D-D9B7-4159-8D04-F1E892D779D9-low.gifFigure 4-10 TPS54294EVM Converter 1 Eco-mode™ Output Voltage Ripple

The output voltage ripple of converter 1 on the TPS54294EVM during Eco-mode™ operation at no load is shown in Figure 4-11.

GUID-2F6AAC65-2996-48AB-985C-53FA2EEE877B-low.gifFigure 4-11 TPS54294EVM Converter 1 Eco-mode™ Output Voltage Ripple at No Load