SLVU281B May   2009  – August 2021 TPS54620

 

  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 Slow Start Time
      3. 1.3.3 Track In
      4. 1.3.4 Adjustable UVLO
      5. 1.3.5 Input Voltage Rails
  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 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 TPS54620EVM-374 .

Table 4-1 TPS54620EVM-374 Bill of Materials
CountRefDesValueDescriptionSizePart NumberMFR
0C1OpenCapacitor, Ceramic, 25V, X5R, 20%1210StdStd
1C210µFCapacitor, Ceramic, 25V, X5R, 20%1210StdStd
1C34.7µFCapacitor, Ceramic, 25V, X5R, 10%0805StdStd
1C46800pFCapacitor, Ceramic, 50V, X7R, 10%0603StdStd
1C50.1µFCapacitor, Ceramic, 50V, X7R, 10%0603StdStd
0C6, C10OpenCapacitor, Ceramic0603StdStd
1C70.01µFCapacitor, Ceramic, 25V, X7R, 10%0603StdStd
2C8, C9100µFCapacitor, Ceramic, 6.3V, X5R, 20%1210StdStd
3J1, J2, J7ED555/2DSTerminal Block, 2-pin, 6-A, 3.5mm0.27 x 0.25 inchED555/2DSOST
4J3, J4, J5, J6PEC02SAANHeader, Male 2-pin, 100mil spacing0.100 inch x 2PEC02SAANSullins
1L13.3µHInductor, SMT, 7.2A, 10.4milliohm0.402 sq inchMSS1048-332NL_Coilcraft
1R135.7KResistor, Chip, 1/16W, 1%0603StdStd
1R28.06KResistor, Chip, 1/16W, 1%0603StdStd
1R3100KResistor, Chip, 1/16W, 1%0603StdStd
1R45.62KResistor, Chip, 1/16W, 1%0603StdStd
0R5, R6OpenResistor, Chip, 1/16W, 1%0603StdStd
1R70Resistor, Chip, 1/16W, 1%0603StdStd
1R831.6KResistor, Chip, 1/16W, 1%0603StdStd
1R910.0KResistor, Chip, 1/16W, 1%0603StdStd
6TP1, TP3, TP5, TP6, TP7, TP85000Test Point, Red, Thru Hole Color Keyed0.100 x 0.100 inch5000Keystone
4TP2, TP4, TP9, TP105001Test Point, Black, Thru Hole Color Keyed0.100 x 0.100 inch5001Keystone
1U1TPS54620RGYIC, 4.5V-17V Synchronous Step Down Converter with Integrated MOSFETs3.5mm x 3.5mm QFN14TPS54620RGYTI
2—Shunt, 100-mil, Black0.100929950-003M
1—PCB, 2.5” x 2.5” x 0.062”HPA374Any
Notes
  1. These assemblies are ESD sensitive, ESD precautions shall be observed.
  2. These assemblies must be clean and free from flux and all contaminants. Use of no clean flux is not acceptable.
  3. These assemblies must comply with workmanship standards IPC-A-610 Class 2.
  4. Ref designators marked with an asterisk (‘**’) cannot be substituted. All other components can be substituted with equivalent MFG's components.