SLUUCG9 October   2021 LMR51420

 

  1.   Trademarks
  2. 1Introduction
    1. 1.1 Description
    2. 1.2 Features
  3. 2EVM Setup
    1. 2.1 Ajusting the Output Voltage
  4. 3PCB Layouts
  5. 4Schematics
  6. 5LMR51420EVM Bill of Materials

2 EVM Setup

This section describes the jumpers and connectors on the EVM and how to properly connect, set up, and use the LMR51420EVM.

    VIN – Terminal TP1 Power input terminal for the converter. Adjacent to it is the GND reference ground. Use this terminal to attach the EVM to a cable harness.
    VOUT – Terminal TP3 Regulated output voltage for the converter. Adjacent to it is the GND reference ground.
    GND – Terminal TP2, TP4 Ground reference for the converter. Use these terminals to attach the EVM to a cable harness.
    VOUT SETTING – Jumper JP1 Used to set output voltage to 5-V or 3.3-V output
    ENABLE SETTING – Jumper JP3 Used to enable the switch-mode converter. The device will be enabled when the EN pin is high, and disabled when low.
GUID-1A77A002-A481-4AEF-91EC-CD40406E2D3F-low.gif Figure 2-1 Vout Jumper Setting
GUID-20211004-SS0I-KFBR-2NH7-NC6L0WQD8ZV6-low.gif Figure 2-2 Enable Jumper Setting
    Jumper J2 Test points used for loop response measurements
    Jumper J4 Replacing J4 by wire can use current scope to test the inductor current