SLVU151A April   2013  – August 2021 TPS54350 , TPS54550

 

  1.   Trademarks
  2. 1Background
  3. 2Performance Specification Summary
  4. 3Modifications
    1. 3.1 Output Voltage Set Point
    2. 3.2 Input Voltage Range
  5. 4Test Setup and Results
    1. 4.1 Input / Output Connections
    2. 4.2 Efficiency
    3. 4.3 Output Voltage Regulation
    4. 4.4 Load Transients
    5. 4.5 Loop Characteristics
    6. 4.6 Output Voltage Ripple
    7. 4.7 Input Voltage Ripple
    8. 4.8 Powering Up
  6. 5Board Layout
    1. 5.1 Layout
  7. 6Schematic and Bill of Materials
    1. 6.1 Schematic
    2. 6.2 Bill of Materials
  8. 7Revision History

6.2 Bill of Materials

The bill of materials for the TPS54550EVM-158 is given by Table 6-1.

Table 6-1 TPS54550EVM-158 Bill of Materials
CountREF DESValueDescriptionSizePart NumberMFR
0C1OpenCapacitor, Aluminum, SM10 × 12mm
2C2, C10100 μFCapacitor, Ceramic, 6.3V, X5R, 20%1210C3225X5R0J107MTDK
1C30.1 μFCapacitor, Ceramic, 25V, X5R, 10%0603C1608X5R1E104KBTDK
1C41.0 μFCapacitor, Ceramic, 25V, X5R, 10%0603C1608X5R1E105KBTDK
1C50.033 μFCapacitor, Ceramic, 50V, X5R, 10%0603C1608X5R1H333KBTDK
1C60.068 μFCapacitor, Ceramic, 50V, X5R, 10%0603C1608X5R1H683KTTDK
1C71000pFCapacitor, Ceramic, 50V, C0G, 5%0603C1608C0G1H102JBTDK
1C80.01 μFCapacitor, Ceramic, 50V, X5R, 10%0603C1608X5R1H103KBTDK
1C910 μFCapacitor, Ceramic, 16V, X5R, 20%1210C3225X5R1C106MTDK
2J1, J2Terminal Block, 2 pin, 6A, 3,5 mm0.27 × 0.25ED1514OST
2J3, J4Header, 2 pin, 100 mil spacing, (36-pin strip)0.100 × 2PTC36SAANSullins
1L16.8 μHInductor, SMT, 5.4A, 14 mΩ0.405 sq inchCDRH105R-6R8Sumida
1Q1MOSFET, Fast Switching, NChan, 20V, 21.1A, 5.3 mΩPWRPAK 1212Si7110DNVishay
3R1, R9, R1110.0kResistor, Chip, 1/16W, 1%0603StdStd
1R1023.7Resistor, Chip, 1/16W, 1%0603StdStd
1R23.74kResistor, Chip, 1/16W, 1%0603StdStd
1R31.00kResistor, Chip, 1/16W, 1%0603StdStd
1R469.8kResistor, Chip, 1/16W, 1%0603StdStd
1R5133Resistor, Chip, 1/16W, 1%0603StdStd
0R6, R7Open Resistor, Chip, 1/16W, 1%0603
1R80Resistor, Chip, 1/16W, 1%0603StdStd
7TP1, TP3, TP5, TP6–TP9Test Point, Red, Thru Hole Color Keyed0.100 × 0.1005000Keystone
2TP2, TP4Test Point, Black, Thru Hole Color Keyed0.100 × 0.1005001Keystone
1U1IC, 4.5 to 20V Input, 6A Step down converter with adjustable output voltagePWP16TPS54550PWPTI
1–PCB, 3 In × 3 In × 0.062 InHPA158Any