SLVU346A January   2010  – February 2022 TPS51218

 

  1.   Trademarks
  2. 1Description
    1. 1.1 Typical Applications
    2. 1.2 Features
  3. 2Electrical Performance Specifications
  4. 3Schematic
  5. 4Test Setup
    1. 4.1 Test Equipment
    2. 4.2 Recommended Test Setup
      1. 4.2.1 Configurations
      2. 4.2.2 Input Connections
      3. 4.2.3 Output Connections
      4. 4.2.4 Other Connections
  6. 5Test Procedure
    1. 5.1 Line/Load Regulation and Efficiency Measurement Procedure
    2. 5.2 List of Test Points
    3. 5.3 Equipment Shutdown
  7. 6Performance Data and Typical Characteristic Curves
    1. 6.1 Efficiency
    2. 6.2 Load Regulation
    3. 6.3 Transient Response
    4. 6.4 Output Ripple
    5. 6.5 Switch Node Voltage
    6. 6.6 Turn-On Waveform
    7. 6.7 Turn-Off Waveform
    8. 6.8 Output 1.1-V Prebias Turn-On
  8. 7EVM Assembly Drawing and PCB Layout
  9. 8Bill of Materials
  10. 9Revision History

4.2.2 Input Connections

  1. Prior to connecting the DC input source VIN, it is advisable to limit the source current from VIN to 10 A maximum. Ensure that VIN is initially set to 0 V and connected as shown in Figure 4-2.
  2. Connect a voltmeter V1 at TP6 (VIN) and TP7 (PGND) to measure the input voltage.
  3. Connect a current meter A1 to measure the input current.