SLVU491A November   2011  – October 2021 TPS54294

 

  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
      1. 4.3.1 Efficiency of Converter 1
      2. 4.3.2 Efficiency of Converter 2
    4. 4.4 Load Regulation
      1. 4.4.1 Load Regulation of Converter 1
      2. 4.4.2 Load Regulation of Converter 2
    5. 4.5 Line Regulation
      1. 4.5.1 Line Regulation Converter 1
      2. 4.5.2 Line Regulation Converter 2
    6. 4.6 Load Transient Response
      1. 4.6.1 Load Transient Response Converter 1
      2. 4.6.2 Load Transient Response Converter 2
    7. 4.7 Output Voltage Ripple
      1. 4.7.1 Output Voltage Ripple Converter 1
      2. 4.7.2 Output Voltage Ripple Converter 2
    8. 4.8 Input Voltage Ripple
    9. 4.9 Start-Up and Shutdown
      1. 4.9.1 Start-Up and Shutdown Converter 1
      2. 4.9.2 Start-Up and Shutdown Converter 2
  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 TPS54294EVM performance specifications is provided in Table 2-1. Specifications are given for an input voltage of VINx = 12 V and an output voltage of 1.2 V and 3.3 V, unless otherwise noted. The ambient temperature is 25°C for all measurement, unless otherwise noted.

Table 2-1 TPS54294EVM Performance Specifications Summary
Specifications Test Conditions Min Typ Max Unit
Input voltage range (VINx) 4.5 12 18 V
Output voltages VOUT1 1.2 V
VOUT2 3.3
Operating frequency VINx = 12 V, IOUTx = 1 A 700 kHz
Output current range 0 2 A
Line regulation, VOUT1 IOUTx = 1 A, VINx= 4.5 V to 18 V 0.040 %/V
Line regulation, VOUT2 IOUTx = 1 A, VINx= 5 V to 18 V 0.049 %/V
Load regulation, VOUT1 VINx = 12 V, IOUTx = 0 A to 2 A 0.375 %/A
Load regulation, VOUT2 VINx = 12 V, IOUTx = 0 A to 2 A 0.167 %/A
Over current limit, VOUTx VINx = 12 V, Lx = 2.2 µH 4 A
Output ripple voltage, VOUTx VINx = 12 V, IOUTx = 2 A 15 mVPP
Maximum efficiency, VOUT1 VINx = 5 V, IOUTx= 0.4 A 88.1%
Maximum efficiency, VOUT2 VINx = 5 V, IOUTx= 0.3 A 95.1%