SLVUC14A August   2022  – November 2022 TPS62870 , TPS62871 , TPS62872 , TPS62873

 

  1.   TPS62872EVM-144 Evaluation Module
  2.   Trademarks
  3. 1Warning and Caution
  4. 2Introduction
    1. 2.1 Performance Specification
    2. 2.2 Modifications
      1. 2.2.1 Input and Output Capacitors
      2. 2.2.2 Output Voltage Setting
      3. 2.2.3 Control Loop Compensation
      4. 2.2.4 Switching Frequency Setting
      5. 2.2.5 I2C Interface
  5. 3Setup
    1. 3.1 Connector Descriptions
    2. 3.2 Hardware Setup
  6. 4TPS62873EVM-144 Test Results
  7. 5Board Layout
  8. 6Schematic and Bill of Materials
    1. 6.1 Schematic
    2. 6.2 Bill of Materials
  9. 7Revision History

2.2.4 Switching Frequency Setting

The switching frequency is set to a default of 2.25 MHz. By changing the values of R103 and R104, the default switching frequency can be changed. If R103 and R104 are changed the same change must be done with R203 (same value as R103) and R204 (same value as R104) For more details, see the TPS6287x-Q1 Low Input Voltage, Adjustable-Frequency Step-Down Converter data sheet.