SLVU382A August   2010  – September 2021 TPS54425

 

  1.   Trademarks
  2. 1Introduction
  3. 2Performance Specification Summary
  4. 3Modifications
    1. 3.1 Output Voltage Setpoint
  5. 4Test Setup and Results
    1. 4.1 Input/Output Connections
    2. 4.2 Start-Up Procedure
    3. 4.3 Efficiency
    4. 4.4 Load Regulation
    5. 4.5 Line Regulation
    6. 4.6 Load Transient Response
    7. 4.7 Output Voltage Ripple
    8. 4.8 Input Voltage Ripple
    9. 4.9 Start-Up
  6. 5Board Layout
    1. 5.1 Layout
  7. 6Schematic, Bill of Materials, and Reference
    1. 6.1 Schematic
    2. 6.2 Bill of Materials
    3. 6.3 Reference
  8. 7Revision History

4.1 Input/Output Connections

The TPS54425EVM-608 is provided with input/output connectors and test points as shown in Table 4-1. A power supply capable of supplying 2 A must be connected to J1 through a pair of 20 AWG wires. The load must be connected to J2 through a pair of 20 AWG wires. The maximum load current capability is 2 A. Wire lengths must be minimized to reduce losses in the wires. Test point TP1 provides a place to monitor the VIN input voltages with TP2 providing a convenient ground reference. TP8 is used to monitor the output voltage with TP9 as the ground reference.

Table 4-1 Connection and Test Points
Reference Designator Function
J1 VIN (see Table 1-1 for VIN range)
J2 VOUT, 1.05 V at 2 A maximum
JP1 EN control. Connect EN to OFF to disable, connect EN to ON to enable.
TP1 VIN test point at VIN connector
TP2 GND test point at VIN
TP3 EN test point
TP4 Analog ground test point
TP5 Switch node test point
TP6 Power good test point
TP7 Output voltage test point
TP8 Ground test point at output connector