SLVU263A August   2008  – October 2021 TPS54231

 

  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
    10. 2.10 Eco-mode Operation
    11. 2.11 Thermal Characteristics
  4. 3Board Layout
    1. 3.1 Layout
    2. 3.2 Estimated Circuit Area
  5. 4Schematic and Bill of Materials
    1. 4.1 Schematic
    2. 4.2 Bill of Materials
  6. 5Revision History

4.2 Bill of Materials

Table 4-1 presents the bill of materials for the TPS54231EVM-372.

Table 4-1 TPS54231EVM-372 Bill of Materials
CountRefDesValueDescriptionSizePart NumberMFR
2C1, C24.7 μFCapacitor, Ceramic, 50V, X7R, 20%1210StdStd
0C10Open7343(D)StdStd
1C30.01 μFCapacitor, Ceramic, 50V, X7R, 10%0603StdStd
1C40.1 μFCapacitor, Ceramic, 16V, X7R, 10%0603StdStd
1C50.015 μFCapacitor, Ceramic, 16V, X7R, 10%0603StdStd
1C61000 pFCapacitor, Ceramic, 16V, X7R, 10%0603StdStd
1C747 pFCapacitor, Ceramic, 16V, X7R, 10%0603StdStd
2C8, C947 μFCapacitor, Ceramic, 6.3, X5R, 20%1206C3216X5R0J476MTTDK
1D1B240ADiode, Schottky, 2A, 40VSMAB240ADiodes Inc
2J1, J4ED1514Terminal Block, 2-pin, 6-A, 3.5mm0.27 × 0.25 inchED1514OST
2J2, J3PTC36SAANHeader, 2-pin, 100mil spacing, (36-pin strip)0.100 × 2PTC36SAANSullins
1L110 μHInductor, SMT, 3.9A, 35 mΩ0.402 × 0.394 inchMSS1038-103NLCoilcraft
1R1332kResistor, Chip, 1/16W, 1%0603StdStd
1R268.1kResistor, Chip, 1/16W, 1%0603StdStd
1R329.4kResistor, Chip, 1/16W, 1%0603StdStd
1R40Resistor, Chip, 1/16W, 1%0603StdStd
1R510.2kResistor, Chip, 1/16W, 1%0603StdStd
1R63.24kResistor, Chip, 1/16W, 1%0603StdStd
0R7OpenResistor, Chip, 1/16W, 1%0603StdStd
3TP1, TP3, TP55000Test Point, Red, Thru Hole Color Keyed0.100 × 0.100 inch5000Keystone
3TP2, TP4, TP65001Test Point, Black, Thru Hole Color Keyed0.100 × 0.100 inch5001Keystone
1U1TPS54231DIC, DC-DC Converter, 28V, 2ASO-8TPS54231DTI
1—PCB2.0" x 2.0" x 0.062"HPA372Any
1—Shunt, 100-mil, Black0.100929950-003M