SNVU628 February   2020 LM5155 , LM5155-Q1 , LM51551 , LM51551-Q1

 

  1.   LM5155EVM-SEPIC User's Guide
    1.     Trademarks
    2. 1 Features and Electrical Performance
      1. 1.1 Electrical Parameters
      2. 1.2 EVM Power Derating Curve
      3. 1.3 Terminals and Signal Test Points
    3. 2 Application Schematic
    4. 3 EVM Picture
    5. 4 Test Setup and Procedure
      1. 4.1 Bench Setup
      2. 4.2 Test Equipment
      3. 4.3 Precautions
    6. 5 Test Data
      1. 5.1 Efficiency
      2. 5.2 Output Regulation
      3. 5.3 Typical Power Up
      4. 5.4 Output Ripple Voltage
      5. 5.5 Coupled Inductor Currents
      6. 5.6 Dynamic DIR Change
      7. 5.7 Step Load Response
      8. 5.8 Bode Plots
      9. 5.9 Overloading Hiccup Mode
    7. 6 Design Files
      1. 6.1 Schematics
      2. 6.2 Bill of Materials
      3. 6.3 Board Layout

5.7 Step Load Response

Step_load_resp_under_Vin6V_SNVU628.gifFigure 14. Step Load Response under VIN = 6 V, IOUT = 1 to 2-A Step
Step_load_resp_under_Vin12V_Iout_1_2A_SNVU628.gifFigure 15. Step Load Response under VIN = 12 V, IOUT = 1 to 2-A Step
Step_load_resp_under_Vin42V_Iout_1_2A_step_SNVU628.gifFigure 16. Step Load Response under VIN = 42 V, IOUT = 1 to 2-A Step