SLVU179B October   2006  – February 2022 TPS51117

 

  1.   Trademarks
  2. 1Introduction
    1. 1.1 Description
    2. 1.2 Features
    3. 1.3 Operating Specification
    4. 1.4 Schematic
  3. 2Test Setup
    1. 2.1 Test Equipment
    2. 2.2 Test Points
    3. 2.3 Recommended Test Setup
    4. 2.4 Standard Test Procedures
      1. 2.4.1 Line/Load Regulation
      2. 2.4.2 Output Ripple Measurement
  4. 3Performance Data and Typical Characteristic Curves
  5. 4Board Layout Using TPS51117RGY (QFN 14)
  6. 5List of Materials
  7. 6Revision History

2.1 Test Equipment

Voltage Source: Two power supplies are needed, one capable of supplying 21 VDC at 5 A connected at J1 and J2, the other 5 V at 1 A connected at J3 and J4. The minimum recommended wire size is AWG #16 with the total length of wire less than four feet (2-feet input, 2-feet return) to connect the TPS51117 EVM board.

Loads: One electronic load is needed that should be capable of sinking 10 A at 1 V to test specified output and 16 A maximum to test current limit. The minimum recommended wire size is AWG #16 with the total length of wire less than four feet (2-feet input, 2-feet return) to connect the TPS51117 EVM board at J5 and J6.

Meters: Three digital multi-meters are required.

Oscilloscope: A minimum 50-MHz digital oscilloscope with one voltage probe is required.