SNVU745A January   2021  – May 2021 TPS62901 , TPS62902 , TPS62903

 

  1.   Trademarks
  2. 1Introduction
    1. 1.1 Performance Specification
    2. 1.2 Modifications
      1. 1.2.1 Input and Output Capacitors
      2. 1.2.2 Configurable Enable Threshold Voltage
      3. 1.2.3 SS/TR Capacitor
      4. 1.2.4 Feedforward Capacitor
      5. 1.2.5 MODE/S-CONF Resistor
      6. 1.2.6 Loop Response Measurement
  3. 2Setup
    1. 2.1 Input/Output Connector Descriptions
  4. 3Safety Instructions
  5. 4 Test Results
  6. 5 Board Layout
  7. 6Schematic and Bill of Materials
    1. 6.1 Schematic
    2. 6.2 Bill of Materials
  8. 7Revision History

1.2.5 MODE/S-CONF Resistor

R4 selects the switching frequency, output discharge, MODE setting, and output voltage setting configuration. When selecting a different switching frequency, the inductor value should also be changed. When using the VSET configuration for setting the output voltage, remove R1 and change the value of R2. See the TPS62903, 3-V to 17-V, Low IQ Buck Converter in 1.5 mm × 2 mm QFN Package data sheet for details of the various settings.