SLVU157A March   2006  – October 2021 TPS5430 , TPS5431

 

  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 Input/Output Connections
    2. 2.2 Efficiency
    3. 2.3 Output Voltage Load Regulation
    4. 2.4 Output voltage Line Regulation
    5. 2.5 Load Transients
    6. 2.6 Loop Characteristics
    7. 2.7 Output Voltage Ripple
    8. 2.8 Input Voltage Ripple
    9. 2.9 Powering Up
  4. 3Board Layout
    1. 3.1 Layout
  5. 4Schematic and Bill of Materials
    1. 4.1 Schematic
    2. 4.2 Bill of Materials
  6. 5Revision History

1.2 Performance Specification Summary

A summary of the TPS5430EVM-173 performance specifications is provided in Table 1-2. Specifications are given for an input voltage of VIN = 15 V and an output voltage of 5 V, unless otherwise specified. The TPS5430EVM-173 is designed and tested for VIN = 10 V to 35 V. The ambient temperature is 25°C for all measurements, unless otherwise noted.

Table 1-2 TPS5430EVM-173 and TPS5431EVM-173 Performance Specification Summary
SPECIFICATIONTEST CONDITIONSMINTYPMAXUNIT
VIN voltage rangeTPS5430EVM-173101535V
TPS5431EVM-17391521
Output voltage set point5.0V
Output current rangeVIN = 3.3 V03A
Line regulationTPS5430EVM-173IO = 0 A – 3 A, VIN = 10 V – 35 V±0.07%
TPS5431EVM-173IO = 0 A – 3 A, VIN = 9 V – 21 V±0.04%
Load regulationTPS5430EVM-173VIN = 15 V, IO = 0 A to 3 A±0.03%
TPS5431EVM-173±0.05%
Load transient responseTPS5430EVM-173IO = 0.75 A to 2.25 AVoltage change–50mV
Recovery time150μs
TPS5431EVM-173Voltage change–40mV
Recovery time150μs
TPS5430EVM-173IO = 2.25 A to 0.75 AVoltage change50mV
Recovery time150μs
TPS5431EVM-173Voltage change40mV
Recovery time150μs
Loop bandwidthTPS5430EVM-173VIN = 25 V, IO = 1 A25.0kHz
TPS5431EVM-173VIN = 15 V, IO = 1 A23.9
Phase marginTPS5430EVM-173VIN = 25 V , IO = 1 A50°
TPS5431EVM-173VIN = 15 V, IO = 1 A51°
Input ripple voltageTPS5430EVM-173IO = 3 A255300mVpp
TPS5431EVM-173295350
Output ripple voltageTPS5430EVM-173IO = 3 A20mVpp
TPS5431EVM-17320
Output rise time8ms
Operating frequency500kHz
Max efficiencyTPS5430EVM-173VIN = 10 V, VO = 5 V, IO = 0.75 A93.6%
TPS5431EVM-173VIN = 9 V, VO = 5 V, IO = 0.75 A94.0%