SLVU441B May   2011  – August 2021 TPS54622

 

  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 Pre-Bias Start-Up
    11. 2.11 Hiccup Mode Current Limit
  4. 3Board Layout
    1. 3.1 Layout
  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 TPS54622EVM-012.

Table 4-1 TPS54622EVM-012 Bill of Materials
CountRefDesValueDescriptionSizePart NumberMFR
0C1OpenCapacitor, Ceramic1210StdStd
1C210µFCapacitor, Ceramic, 25V, X5R, 20%1210StdStd
1C30.1µFCapacitor, Ceramic, 25V, X7R, 10%0603StdStd
1C40.01µFCapacitor, Ceramic, 25V, X7R, 10%0603StdStd
1C547pFCapacitor, Ceramic, 50V, COG, 10%0603StdStd
1C6100µFCapacitor, Ceramic, 6.3V, X5R, 20%1206StdStd
0C7OpenCapacitor, Ceramic1206StdStd
1C84.7µFCapacitor, Ceramic, 25V, X5R, 10%0805StdStd
1C90.022µFCapacitor, Ceramic, 25V, X5R, 10%0603StdStd
0C10, C11OpenCapacitor, Ceramic0603StdStd
3J1, J2, J4ED555/2DSTerminal Block, 2-pin, 6-A, 3.5mm0.27 x 0.25 inchED555/2DSOST
4J3, J5, J6, J7PEC02SAANHeader, 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
1R43.74kResistor, Chip, 1/16W, 1%0603StdStd
1R551.1Resistor, Chip, 1/16W, 1%0603StdStd
1R610.0kResistor, Chip, 1/16W, 1%0603StdStd
1R72.21kResistor, Chip, 1/16W, 1%0603StdStd
0R8, R9OpenResistor, Chip, 1/16W, 1%0603StdStd
6TP1, TP3, TP4, TP6, TP7, TP85000Test Point, Red, Thru Hole Color Keyed0.100 x 0.100 inch5000Keystone
3TP2, TP5, TP95001Test Point, Black, Thru Hole Color Keyed0.100 x 0.100 inch5001Keystone
1U1TPS54622RHLIC, 1.6V-17V Synchronous Buck PWM Converter with Integrated MOSFET3.5mm x 3.3mm QFN14TPS54622RGHLTI
2—Shunt, 100-mil, Black0.100929950-003M
1—Label (see note 5)1.25 x 0.25 inchTHT-13-457-10Brady
1—PCB, 2.5” x 2.5” x 0.062”PWR012Any
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.
  5. Install label in silkscreened box after final wash. Text shall be 8 pt font