SNVU738 March   2022 LM5157 , LM5157-Q1 , LM51571-Q1

 

  1.   Trademarks
  2. 1Features and Electrical Performance
    1. 1.1 Electrical Parameters
    2. 1.2 EVM Power Derating Curve
    3. 1.3 Terminals and Signal Test Points
  3. 2Application Schematic
  4. 3EVM Picture
  5. 4Test Setup and Procedure
    1. 4.1 Bench Setup
    2. 4.2 Test Equipment
    3. 4.3 Precautions
  6. 5Test Data
    1. 5.1 Efficiency
    2. 5.2 Output Regulation
    3. 5.3 Thermal Performance
    4. 5.4 Typical Power Up
    5. 5.5 Output Ripple Voltage
    6. 5.6 Step Load Response
    7. 5.7 Bode Plots
  7. 6Schematics
  8. 7Bill of Materials
  9. 8Board Layout

5.1 Efficiency

Figure 5-1 Efficiency vs. Load under Normal VIN, FSW = 2.1 MHz
Figure 5-2 Efficiency vs. Load under Low VIN, FSW = 2.1 MHz