SLVUAH4A August   2015  – October 2021 TPS54334

 

  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
      2. 1.3.2 Adjustable UVLO
  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
    10. 2.10 Powering Down
  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 TPS54334EVM-722 performance specifications is provided in Table 1-2. Specifications are given for an input voltage of VIN = 24 V and an output voltage of 5.0 V, unless otherwise specified. The TPS54334EVM-722 is designed and tested for VIN = 4.2 V to 28 V. The ambient temperature is 25°C for all measurements, unless otherwise noted.

Table 1-2 TPS54334EVM-722 Performance Specification Summary
SpecificationTest ConditionsMINTYPMAXUnit
VIN operating voltage range4.22428V
VIN start voltage4.1V
VIN stop voltage3.9V
Output voltage set point3.3V
Output current range(1)VIN = 4.2 V to 28 V03A
Line regulationIO = 1.5 A, VIN = 4.2 V to 28 V±0.05%
Load regulationVIN = 12 V, IO = 0 A to 3 A±0.2%
Load transient responseIO = 0.75 A to 2.25 AVoltage change–190mV
Recovery time150μs
IO = 2.25 A to 0.75 AVoltage change190mV
Recovery time150μs
Loop bandwidthVIN = 24 V, IO = 1.5 A54.26kHz
Phase marginVIN = 24 V , IO = 1.5 A82°
Input ripple voltageIO = 3 A400mVPP
Output ripple voltageIO = 3 A<30mVPP
Output rise time2ms
Operating frequency570kHz
Maximum EfficiencyTPS54334EVM-722, VIN = 12 V, IO = 1 A91.38%
(1) When VIN = 4.2 V, maximum IOUT is 2 A.