SLVUCV6 May   2024 TPSM81033

 

  1.   1
  2.   Description
  3.   Features
  4.   Applications
  5.   5
  6. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
    3. 1.3 Specification
    4. 1.4 Device Information
  7. 2Hardware
    1. 2.1 Setup
      1. 2.1.1 Input/Output Connector Descriptions
      2. 2.1.2 Modification
      3. 2.1.3 Input Capacitor
      4. 2.1.4 Output Capacitor
      5. 2.1.5 Feedforward Capacitor
  8. 3Hardware Design Files
    1. 3.1 Schematic
    2. 3.2 PCB Layout
    3. 3.3 Bill of Materials
  9. 4Additional Information
    1. 4.1 Trademarks

2.1.3 Input Capacitor

A 150µF tantalum capacitor C2, is added as the input capacitor in the EVM, The ESR of the tantalum capacitor is 0.1Ω, to damp the ringing of the input voltage when the EVM is powered by a power supply with a long cable. The capacitor is not required for proper operation and can be removed in a real application.

If the input current is as large as 5A or even larger, then TI recommends to remove the 2.2µF capacitors at AVIN pin (C1).