SLVU356A January   2010  – October 2021 TPS54290 , TPS54291

 

  1.   Trademarks
  2. 1Introduction
    1. 1.1 Description
    2. 1.2 Applications
    3. 1.3 Features
  3. 2TPS54291EVM-431 Electrical Performance Specifications
  4. 3Schematic
    1. 3.1 Enable Jumpers (JP1 and JP2)
    2. 3.2 Error Amplifier Outputs
    3. 3.3 Test Point Descriptions
      1. 3.3.1 Input Voltage Monitoring (TP1 and TP2)
      2. 3.3.2 Channel 1 Output Voltage Monitoring (TP3 and TP4)
      3. 3.3.3 Channel 1 Loop Analysis (TP5, TP6, TP7, and TP8)
      4. 3.3.4 Channel 1 Switching Waveforms (TP9 and TP10)
      5. 3.3.5 TPS54291 IC Ground (TP11)
      6. 3.3.6 Channel 2 Switching Waveforms (TP12 and TP13)
      7. 3.3.7 Channel 2 Loop Analysis (TP14, TP15, TP16, and TP17)
      8. 3.3.8 Output Voltage Monitoring (TP18 and TP19)
  5. 4Test Setup
    1. 4.1 Equipment
      1. 4.1.1 Voltage Source (VIN)
      2. 4.1.2 Meters
      3. 4.1.3 Loads
      4. 4.1.4 Oscilloscope
      5. 4.1.5 Recommended Wire Gauge
      6. 4.1.6 Other
    2. 4.2 Equipment Setup
      1. 4.2.1 Procedure
      2. 4.2.2 Diagram
    3. 4.3 Start-Up/Shutdown Procedure
    4. 4.4 Output Ripple Voltage Measurement Procedure
    5. 4.5 Control Loop Gain and Phase Measurement Procedure
    6. 4.6 Equipment Shutdown
  6. 5TPS54291EVM-431 Typical Performance Data and Characteristic Curves
    1. 5.1 Efficiency
    2. 5.2 Line and Load Regulation
    3. 5.3 Switch Node and Output Ripple Voltage
  7. 6EVM Assembly Drawings and Layout
  8. 7List of Materials
  9. 8Revision History

7 List of Materials

Table 7-1 lists the EVM components as configured according to the schematic shown in Figure 3-1.

Table 7-1 TPS54291EVM-431 Bill of Materials
QTYREFDESVALUEDESCRIPTIONSIZEPART NUMBERMFR
1C1100 μFCapacitor, Aluminum, 25 V, ±20%0.328 × 0.390 inchEEEFC1E101PPanasonic
1C124.7 μFCapacitor, Ceramic, 10 V, X5R, 20%0805StdStd
2C2, C1422 μFCapacitor, Ceramic, 6.3 V, X5R, 20%1206C3216X5R0J226MTDK
2C3, C13470 pFCapacitor, Ceramic, 25 V, X7R, 20%0603StdStd
2C4, C110.047 μFCapacitor, Ceramic, 25 V, X7R, 20%0603StdStd
2C5, C1010 μFCapacitor, Ceramic, 25 V, X5R, 20%1210C3225X5R1E106MTDK
1C61.8 nFCapacitor, Ceramic, 25 V, X7R, 20%0603StdStd
1C715 pFCapacitor, Ceramic, 25 V, C0G, 20%0603StdStd
1C847 pFCapacitor, Ceramic, 25 V, C0G, 20%0603StdStd
1C91.2 nFCapacitor, Ceramic, 25 V, X7R, 20%0603StdStd
3J1, J2, J3ED1609-NDTerminal Block, 2-pin, 15-A, 5.1 mm0.40 × 0.35 inchED120/2DSOST
2JP1, JP2PEC03SAANHeader, 3-pin, 100-mil spacing0.100 inch × 3PEC03SAANSullins
1L18.2 μHInductor, SMT, 4.38 A, 20 mΩ0.402 × 0.394 inchMSS1048-822LCoilcraft
1L23.3 μHInductor, SMT, 4.38 A, 20 mΩ0.402 × 0.394 inchMSS1048-332LCoilcraft
2R1, R851Resistor, Chip, 1/16W, 5%0603StdStd
1R1040.2 kResistor, Chip, 1/16W, 1%0603StdStd
2R2, R1110Resistor, Chip, 1/16W, 5%0603StdStd
2R3, R1220.5 kResistor, Chip, 1/16W, 1%0603StdStd
1R46.49 kResistor, Chip, 1/16W, 1%0603StdStd
2R5, R90Resistor, Chip, 1/16W, 5%0603StdStd
1R653.6 kResistor, Chip, 1/16W, 1%0603StdStd
1R718.7 kResistor, Chip, 1/16W, 1%0603StdStd
3TP1, TP3, TP18 TP2, TP4, TP5, TP7, TP10, TP13, TP155010Test Point, Red, Thru Hole0.125 × 0.125 inch5010Keystone
9TP17, TP19, TP6, TP8, TP11, TP145011Test Point, Black, Thru Hole0.125 × 0.125 inch5011Keystone
5TP165012Test Point, White, Thru Hole0.125 × 0.125 inch5012Keystone
0TP9, TP12NoneTest point, 40 mil SMTNoneNoneNone
1U1TPS54291PWPIC, 2.5-A/1.5-A, 600-Hz, Dual Output Fully Synchronous Buck Converter W/Integrated FETCSPTPS54291PWPTI
2—Shunt, 100-mil, Black0.100929950-003M
1—PCB, 3 inch × 3 inch × 0.063 inchHPA431Any