SLVU578A December   2011  – September 2021 TPS54428

 

  1.   Trademarks
  2. 1Introduction
  3. 2Performance Specification Summary
  4. 3Modifications
    1. 3.1 Output Voltage Setpoint
    2. 3.2 Output Filter and Closed-Loop Response
  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  Frequency
    7. 4.7  Load Transient Response
    8. 4.8  Output Voltage Ripple
    9. 4.9  Input Voltage Ripple
    10. 4.10 Start-Up and Shut-Down
  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

2 Performance Specification Summary

A summary of the TPS54428 evaluation module performance specifications is provided in Table 2-1. Specifications are given for an input voltage of VIN = 12 V and an output voltage of 1.05 V, unless otherwise noted. The ambient temperature is 25°C for all measurement, unless otherwise noted.

Table 2-1 TPS54428EVM-052 Performance Specifications Summary
SPECIFICATIONSTEST CONDITIONSMINTYPMAXUNIT
Input voltage range (VIN)4.51218V
Output voltage (VOUT)1.05V
Operating frequencyVIN = 12 V, IOUT = 2 A650kHz
Output current range04A
Line regulationIO = 2.5 A+/- 0.33%
Load regulationVIN = 12 V+0.9/- 0.1%
Overcurrent limitVIN = 12 V, L = 1.5 µH4.65.36.8A
Output ripple voltageVIN = 12 V, IOUT = 4A15mVPP
Maximum efficiencyVIN = 5 V, IOUT= 0.7 A88%