SNVU658B March   2020  – May 2021 TPS54J060 , TPS54J061

 

  1.   Trademarks
  2. 1Introduction
    1. 1.1 Background
    2. 1.2 Performance Specification Summary
    3. 1.3 Modifications
      1. 1.3.1 Output Voltage Setpoint
      2. 1.3.2 Frequency and Operation Mode Setting
      3. 1.3.3 Enable Pin Selection
      4. 1.3.4 Adjustable UVLO
  3. 2Test Setup and Results
    1. 2.1  Input/Output Connections
    2. 2.2  Start Up Procedure
    3. 2.3  Efficiency
    4. 2.4  Load and Line Regulation
    5. 2.5  Load Transients
    6. 2.6  Loop Characteristics
    7. 2.7  Output Voltage Ripple
    8. 2.8  Input Voltage Ripple
    9. 2.9  Powering Up and Down with EN
    10. 2.10 Powering Up and Down With VIN
    11. 2.11 Start-Up Into Pre-Bias
    12. 2.12 Current Limit
  4. 3Schematic, List of Materials, and Layout
    1. 3.1 Schematic
    2. 3.2 List of Materials
    3. 3.3 Layout
  5.   Revision History

2.5 Load Transients

Figure 2-12 and Figure 2-13 shows how the TPS54J060EVM-067 and TPS54J061EVM-067 responds to load transients in FCCM and DCM respectively. The current step is from 0.1 to 3.1 A load. The current step slew rate is 1 A/µs. Total peak-to-peak voltage variation is as shown, including ripple and noise on the output.

GUID-81F8839E-9123-4309-ADC4-CB99809742BA-low.gifFigure 2-12 Load Transient Response – FCCM
GUID-E5E03442-020C-40FB-BF60-4A182E03FDC8-low.gifFigure 2-13 Load Transient Response – DCM