SLVUCA1 November   2021 TPS7H1210-SEP

 

  1.   Trademarks
  2. 1Introduction
    1. 1.1 Features
    2. 1.2 Applications
  3. 2Setup
    1. 2.1 Input/Output Connectors and Jumper Descriptions
      1. 2.1.1 J1, J4 (–)VIN
      2. 2.1.2 J6 GND
      3. 2.1.3 J2, J5 (–)VOUT
      4. 2.1.4 J7 GND
      5. 2.1.5 J3 EN
      6. 2.1.6 TP1-5 Test Points
    2. 2.2 Equipment Setup
  4. 3Operation
  5. 4Adjustable Operation
  6. 5Test Results
    1. 5.1 Enable, Disable, and Soft Start Timing
    2. 5.2 Output Load Transients
    3. 5.3 PSRR
    4. 5.4 Noise Spectral Density
  7. 6Board Layout
  8. 7Schematic and Bill of Materials

2.2 Equipment Setup

  1. Before connecting power to J1, turn off the input power supply after verifying that its output voltage is set to a greater absolute value than –5.5 V (–6 V recommended; –16.5 V maximum). Connect the negative voltage lead from the input power supply to –VIN, at the J1 connector of the EVM. Connect the ground lead from the input power supply to GND at the J6 connector of the EVM. If using a (+) power supply, connect the (+) lead is to J6 (GND) and the negative lead to J1 (–VIN).
  2. Connect oscilloscope coax cables to SMA jacks J4 VIN, and/or J5 VOUT if desired. Set scope channels to high impedance.
  3. Connect desired (≤1 A) load between the –VOUT connector J2, and the GND at connector J7.
WARNING: Large |VIN – VOUT| differentials can lead to excessive internal power dissipation when operating at higher ILOAD currents. Internal power dissipation can be calculated with |VIN – VOUT| × ILOAD.