SLVUBZ2A September   2020  – December 2020 LM5127-Q1

 

  1.   Trademarks
  2. 1Introduction
    1. 1.1 Applications
    2. 1.2 Features
  3. 2EVM Setup
    1. 2.1 EVM Characteristics
  4. 3EVM Photo
  5. 4Testing Procedures
    1. 4.1 EVM Connectors and Test Points
  6. 5Test Results
    1. 5.1 Efficiency
    2. 5.2 Thermal Performance
    3. 5.3 Steady State
    4. 5.4 Load Transient
    5. 5.5 Line Transient Responses
  7. 6Schematics, PCB Layers, and Bill of Materials
    1. 6.1 Schematics
    2. 6.2 PCB Layers
    3. 6.3 Bill of Materials
  8. 7EVM Modifications
    1. 7.1 Configure Channel 1 as a Buck Controller
      1. 7.1.1 Component Modifications
      2. 7.1.2 CFG/MODE Pin Selection
    2. 7.2 Configure Channel 2 and Channel 3 as a Dual Phase Buck Controller
      1. 7.2.1 Component Modifications
      2. 7.2.2 CFG/MODE Pin Selection
    3. 7.3 EVM Modification Test Setups
  9. 8Revision History

7.1.2 CFG/MODE Pin Selection

Table 7-2 shows the possible CFG/MODE pin settings to configure channel 1 as a buck . If a dual phase buck configuration for channel 2 and channel 3 is required see Section 7.2 for details on the proper configuration. For proper test setup see Section 7.3

Table 7-2 CFG/MODE Pin Connections for Channel 1 Configured as a Buck Controller (J15)
PIN Pin Connection CH1 CH2 CH3 Switching Mode
2 (9.53kΩ) 3 to 4 Buck Single Phase Buck Single Phase Buck Skip
4 (29.4kΩ) 7 to 8 Buck FPWM/DEM
6 (54.9kΩ) 11 to 12 Buck Dual Phase Buck Skip
8 (90.9kΩ) 15 to 16 Buck FPWM/DEM