SLVU300A June   2009  – October 2021 TPS54325

 

  1.   Trademarks
  2. 1Introduction
    1. 1.1 Background
    2. 1.2 Performance Specification Summary
    3. 1.3 Modifications
      1. 1.3.1 Output Voltage Set Point
  3. 2Test Setup and Results
    1. 2.1  Test Setup
    2. 2.2  Test Procedure
    3. 2.3  Efficiency
    4. 2.4  Load Regualtion
    5. 2.5  Line Regulation
    6. 2.6  Load Transient Response
    7. 2.7  Output Voltage Ripple
    8. 2.8  Input Voltage Ripple
    9. 2.9  Start Up
    10. 2.10 Switching Frequency
  4. 3Board Layout
    1. 3.1 Layout
  5. 4Schematic and Bill of Materials
    1. 4.1 Schematic
    2. 4.2 Bill of Materials
  6. 5References
  7. 6Revision History

1.1 Background

The TPS54325 is a single, adaptive on-time D-CAP2™ mode synchronous buck converter. System designers may use the TPS54325 to complete various end equipment dc/dc converters with a low cost, low component count, low standly current solution. The main control loop for the TPS54325 uses the D-CAP2™ mode that optimized for low ESR output capacitors such as POSCAP, SP-CAP, High Polymer Chemistry or ceramic types. This control loop implementation provides fast transient response with no external compensation components. The TPS54325 dc/dc synchronous converter is designed to provide up to a 3-A output from an input control voltage source (VCC) of 4.5 V to 18 V, input power voltage source (VIN) of 2.0 V to 18 V and output voltage from 0.76 V to 5.5 V. Rated input voltage and output current range for the evaluation module are given in Table 1-1.

Table 1-1 EVM Input Voltage and Output Current Summary
EVMINPUT VOLTAGE RANGEOUTPUT CURRENT RANGE
TPS54325EVMVIN = 5 V to 17 V0 A to 3 A