SLVU157A March   2006  – October 2021 TPS5430 , TPS5431

 

  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
  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

The bill of materials for the TPS5430EVM-173 and TPS5431EVM-173 is given by Table 4-1.

Table 4-1 TPS5430EVM-173 Bill of Materials
Count RefDes Value Description Size Part Number MFR
-001 -002
1 0 C1 4.7 μF Capacitor, Ceramic, 50V, X7R, 20% 1812 C4532X5R1H475MT TDK
0 1 10 μF Capacitor, Ceramic, 25V, X7R, 20% 1812 C4532X7R1E106KT TDK
1 1 C2 0.01 μF Capacitor, Ceramic, 50V, X7R, 10% 0603 C1608X7R1H103K TDK
1 1 C3 220 μF Capacitor, POSCAP, 10V, 40mΩ, 20% 7343(D) 10TPB220M Sanyo
1 0 C4 4.7 μF Capacitor, Ceramic, 50V, X5R, 20% 1812 C4532X5R1H475MT TDK
1 1 D1 Diode, Schottky, 3A, 40V SMA B340A Diode Inc
2 2 J1, J2 Terminal Block, 2-pin, 6-A, 3,5mm 0.27 × 0.25 ED1514 OST
1 1 JP1 Header, 2pin, 100mil spacing, (36-pin strip) 0.100 × 2 PTC36SAAN Sullins
1 0 L1 22 μH Inductor, Power, 3.6A, 50mΩ 0.484 × 0.484 MSS1278-223MLB Coilcraft
0 1 18 μH Inductor, Power, 4A, 43mΩ 0.484 × 0.484 MSS1278-183MLB Coilcraft
1 1 R1 10.0k Resistor, Chip, 1/16W, 1% 0603 Std Std
1 1 R2 3.24k Resistor, Chip, 1/16W, 1% 0603 Std Std
1 1 R3 0 Resistor, Chip, 1/16W, 1% 0603 Std Std
4 4 TP1, TP3, TP5, TP6 Test Point, Red, Thru Hole Color Keyed 0.100 × 0.100 5000 Keystone
2 2 TP2, TP4 Test Point, Black, Thru Hole Color Keyed 0.100 × 0.100 5001 Keystone
1 0 U1 IC, Switching Step-Down Regulator, 5.5V-36V, 3A SO8[DDA] TPS5430DDA TI
0 1 IC, Switching Step-Down Regulator, 5.5V-23V, 3A SO8[DDA] TPS5431DDA TI
1 1 — PCB, 1.95 In × 1.65 In × 0.062 In HPA173 Any
1 1 — Shunt, 100mil, Black 0.100 929950-00 3M