SLUU818A April   2012  – February 2022 TPS51219

 

  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
  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 Line Regulation
    4. 6.4 Load Transient
    5. 6.5 Output Ripple
    6. 6.6 Switch Node Voltage
    7. 6.7 Turn-On/Turn-Off Waveform
    8. 6.8 Output 0.5-V Prebias Turnon Waveform
  8. 7EVM Assembly Drawing and PCB Layout
  9. 8Bill of Materials
  10. 9Revision History

5.2 List of Test Points

Table 5-1 Functions of Each Test Point
Test PointNameDescription
TP1VREFVREF voltage
TP2REFINREFIN voltage
TP3PGOODPower good
TP4ENOutput enable
TP5ILOADBuilt-in dynamic load current
TP6GNDGND for ILOAD
TP7SWSwitch node
TP8GNDGND for SW
TP9V5IN5-V supply
TP10V5IN_GNDGND for 5-V supply
TP11VINVIN supply
TP12VIN_GNDGND for VIN supply
TP13VCC_PCHOutput for VCC_PCH
TP14VCC_PCH_GNDGND for VCC_PCH
TP15VCCIOVCCIO
TP16VCCIO_GNDGND for VCCIO
J6-1GSNSDifferential sensing (low)
J6-2VSNSDifferential sensing (high)