SLVU437B October   2011  – June 2021 TPS62130 , TPS62131 , TPS62132 , TPS62133 , TPS62140 , TPS62141 , TPS62142 , TPS62143 , TPS62150 , TPS62151 , TPS62152 , TPS62153

 

  1.   Trademarks
  2. 1Introduction
    1. 1.1 Background
    2. 1.2 Performance Specification
    3. 1.3 Modifications
      1. 1.3.1 Fixed Output Operation
      2. 1.3.2 Input and Output Capacitors
      3. 1.3.3 Soft-Start Time
      4. 1.3.4 Loop Response Measurement
  3. 2Setup
    1. 2.1 Input/Output Connector Descriptions
    2. 2.2 Setup
  4. 3TPS621x0EVM-505 Test Results
  5. 4Board Layout
  6. 5Schematic and Bill of Materials
    1. 5.1 Schematic
    2. 5.2 Bill of Materials
  7. 6Revision History

2.1 Input/Output Connector Descriptions

J1 – VINPositive input connection from the input supply for the EVM. Use when the steady-state input current is less than 1 A. Otherwise, use J8.
J2 – S+/S–Input voltage sense connections. Measure the input voltage at this point.
J3 – GNDReturn connection from the input supply for the EVM. Use when the steady-state input current is less than 1 A. Otherwise, use J8.
J4 – VOUTOutput voltage connection. Use when the steady-state output current is less than 1 A. Otherwise, use J9.
J5 – S+/S–Output voltage sense connections. Measure the output voltage at this point.
J6 – GNDOutput return connection. Use when the steady-state output current is less than 1 A. Otherwise, use J9.
J7 – PG/GNDThe PG output appears on pin 1 of this header with a convenient ground on pin 2.
J8 – VIN/GNDPin 1 is the positive input connection with pin 2, serving as the return connection. Use this terminal block if the steady-state input current is greater than 1 A.
J9 – VOUT/GNDPin 2 is the output voltage connection with pin 1, serving as the output return connection. Use this terminal block if the steady-state output current is greater than 1 A.
J10 – SS/TR & GNDThe SS/TR input appears on pin 1 of this header with a convenient ground on pin 2
JP1 – ENEN pin input 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 – DEFDEF pin input jumper. Place the supplied jumper across HIGH and DEF to set the output voltage at 5% above nominal. Place the jumper across LOW and DEF to set the output voltage at the nominal level.
JP3 – FSWFSW pin input jumper. Place the supplied jumper across 1.25MHz and FSW to operate the IC at a reduced switching frequency of nominally 1.25 MHz. Place the jumper across 2.5MHz and FSW to operate the IC at the full switching frequency of nominally 2.5 MHz.
JP4 – PG Pullup VoltagePG pin pullup voltage jumper. Place the supplied jumper on JP4 to connect the PG pin pullup resistor to Vout. Alternatively, the jumper can be removed and a different voltage can be supplied on pin 2 to pull up the PG pin to a different level. This externally applied voltage must remain below 7 V.