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

7.2.2 CFG/MODE Pin Selection

Table 7-4 shows the possible CFG/MODE pin settings to configure channel 2 and channel 3 as a dual phase buck . If a buck configuration for channel 1 is required see Section 7.1 for details on the proper configuration of channel 1. For proper test setup see Section 7.3

Table 7-4 CFG/MODE Pin Connections for Channel 2 and Channel 3 Configured as a Dual Phase Buck Controller (J15)
Configuration Pin Connection CH1 CH2 CH3 Switching Mode
5 (41.2kΩ) 9 to 10 Boost Dual Phase Buck CH1: Skip
CH2/CH3: FPWM/DEM
6 (54.9kΩ) 11 to 12 Buck
7 (71.5kΩ) 13 to 14 Boost FPWM/DEM
8 (90.9kΩ) 15 to 16 Buck