SLVUC13 February   2022 TPS62872 , TPS62873

 

  1.   Trademarks
  2. 1Warning and Caution
  3. 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
  4. 3Setup
    1. 3.1 Connector Descriptions
    2. 3.2 Hardware Setup
  5. 4TPS62873EVM-143 Test Results
  6. 5Board Layout
  7. 6Schematic and Bill of Materials
    1. 6.1 Schematic
    2. 6.2 Bill of Materials

3.1 Connector Descriptions

MH1 - VIN Positive input voltage connection from the input supply for the EVM
J1-1 – VINsense, J1-2 – GNDsense Input voltage sense connections, measure the input voltage at this point.
MH2 – GND Input return connection from the input supply for the EVM
MH3 – VOUT Positive output voltage connection
J2-1 – VOUTsense, J2-2 - GNDsense Output voltage sense connections, measure the output voltage at this point.
MH4 – GND Output return connection
JP1 – EN EN pin jumper. Place the supplied jumper across ON and EN to turn on the IC. Place the jumper across OFF and EN to turn off the IC.
JP2 – MODE/SYNC MODE/SYNC pin jumper. Place the supplied jumper across VIN and MODE/SYNC to force the device in fixed frequency PWM operation at all load currents. Place the jumper across MODE/SYNC and GND to enable power save mode. Connect a clock signal to MODE/SYNC referenced to GND to synchronize the switching frequency to the clock signal.
J3 – PG The PG output appears on pin 1 of this header with a convenient ground on pin 2.
J4 – SYNC_OUT At the SYNC_OUT output, the switching frequency is provided at pin 1 with a convenient ground on pin 2.
J5 – I2C I2C connection configured for being used with the USB2ANY interface.