SBVU059A December   2019  – September 2023

 

  1.   1
  2.   2
  3.   Trademarks
  4. 1Introduction
    1. 1.1 Before You Begin
  5. 2EVM Setup
    1. 2.1 Input/Output Connectors and Jumper Descriptions
      1. 2.1.1  J1 – VIN
      2. 2.1.2  J2 – VIN
      3. 2.1.3  J3 – EN
      4. 2.1.4  J4 – VOUT
      5. 2.1.5  J5 – PG
      6. 2.1.6  J6 – VOUT
      7. 2.1.7  J7 – BIAS
      8. 2.1.8  J8 – GND
      9. 2.1.9  J9 – GND
      10. 2.1.10 J10 -- GND
      11. 2.1.11 J11
      12. 2.1.12 J12
      13. 2.1.13 TP1 – VIN
      14. 2.1.14 TP2 – VEN
      15. 2.1.15 TP3 – PG
      16. 2.1.16 TP4 – VOUT
      17. 2.1.17 TP5 – VBIAS
      18. 2.1.18 TP6 – GND
      19. 2.1.19 TP7 – GND
      20. 2.1.20 TP8 – GND
      21. 2.1.21 TP9 – GND
    2. 2.2 Soldering Guidelines
    3. 2.3 Equipment Connection
  6. 3Operation
  7. 4PCB Layout
  8. 5Schematic
  9. 6Bill of Materials
  10. 7Revision History

2.1.2 J2 – VIN

Input power-supply voltage standard banana jack connector. Twist together the positive input lead and ground return lead from the input power supply, and keep them as short as possible to minimize input inductance. Add additional bulk capacitance between the input supply and ground (use the C1 footprint) if the supply leads are greater than six inches. For example, an additional 47-µF electrolytic capacitor connected from the input supply (J1) to ground can improve the transient response of the TPS7A5301RPS (or TPS7A5301BRPS), and eliminates unwanted ringing on the input because of long wire connections.