SLVU151A April   2013  – August 2021 TPS54350 , TPS54550

 

  1.   Trademarks
  2. 1Background
  3. 2Performance Specification Summary
  4. 3Modifications
    1. 3.1 Output Voltage Set Point
    2. 3.2 Input Voltage Range
  5. 4Test Setup and Results
    1. 4.1 Input / Output Connections
    2. 4.2 Efficiency
    3. 4.3 Output Voltage Regulation
    4. 4.4 Load Transients
    5. 4.5 Loop Characteristics
    6. 4.6 Output Voltage Ripple
    7. 4.7 Input Voltage Ripple
    8. 4.8 Powering Up
  6. 5Board Layout
    1. 5.1 Layout
  7. 6Schematic and Bill of Materials
    1. 6.1 Schematic
    2. 6.2 Bill of Materials
  8. 7Revision History

2 Performance Specification Summary

A summary of the TPS54550EVM-158 performance specifications is provided in Table 2-1. Specifications are given for an input voltage of VIN = 12 V and an output voltage of 3.3 V, unless otherwise specified. The TPS54550EVM-158 is designed and tested for VIN = 6 V to 17 V. The ambient temperature is 25°C for all measurements, unless otherwise noted. Maximum input voltage for the TPS54550EVM-158 is 20 V.

Table 2-1 TPS54550EVM-158 Performance Specification Summary
SPECIFICATIONTEST CONDITIONSMINTYPMAXUNIT
VIN voltage range612 or 1517V
Output voltage set point3.3V
Output current rangeVIN = 10 V to 17 V05A
Line regulationIO = 0 2.5 A, VIN = 10 V - 17 V+0.08 -0.03%
Load regulationVIN = 12 V, IO = 0 A to 5 A+0.07 -0.01%
Load transient responseVoltage changeIO = 1.25 A to 3.75 A-72.5mV
Recovery time450μs
Voltage changeIO = 3.75 A to 1.25 A+72.5mV
Recovery time450μs
Loop bandwidthVIN= 12 V, IO = 2.5 A27kHz
Phase marginVIN = 12 V, IO = 2.5 A62°
Input ripple voltageVIN = 7 V, IO = 5 A276300mVpp
Output ripple voltageVIN = 7 V, IO = 5 A7mVpp
Output rise time5ms
Operating frequency700kHz
Max efficiencyVIN = 6 V, VO = 3.3 V, IO = 1.25 A93.5%