SNVU879 June   2024 LMR36503E-Q1

 

  1.   1
  2.   Description
  3.   Get Started
  4.   Features
  5.   Applications
  6.   6
  7. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
    3. 1.3 Specification
    4. 1.4 Device Information
  8. 2Hardware
    1. 2.1 EVM Setup
      1. 2.1.1 Quick Start
      2. 2.1.2 Test Points
      3. 2.1.3 Jumpers
  9. 3Implementation Results
    1. 3.1 Performance Data and Results
      1. 3.1.1 Efficiency, Load Regulation, and Dropout
      2. 3.1.2 Load Transients
      3. 3.1.3 Steady State
      4. 3.1.4 Line Transient
    2. 3.2 Thermal Images
  10. 4Hardware Design Files
    1. 4.1 Schematic
    2. 4.2 Board Layout
    3. 4.3 Bill of Materials
  11. 5Additional Information
    1. 5.1 Trademarks

1.1 Introduction

The Texas Instruments LMR36503MSCEEVM evaluation module help designers evaluate the operation and performance of the LMR36503E-Q1 wide-input buck converters. The LMR36503E-Q1 is an easy-to-use synchronous step-down DC/DC converter capable of driving up to 0.3A of load current from an input voltage of 3V up to 65V. The LMR36503MSCEEVM features an output voltage of 5V and a switching frequency of 2.2MHz. See the LMR36503E-Q1 3V–65V, 0.3A Ultra-Small Synchronous Buck Converter Optimized for Size and Light Load Efficiency data sheet for additional features, detailed descriptions, and available options.

The LMR36503E-Q1 is available in a 9-pin VQFN package in four device variants, with preprogrammed settings to reduce component count and achieve high density designs. The LMR36503MSCEEVM comes with the variant of the LMR36503MSCERPERQ1, which allows for adjustable output voltage, external synchronization, and spread spectrum options at a fixed 2.2MHz switching frequency. See the LMR36503E-Q1 data sheet for the detailed info of all four variants of the IC. The EVM utilizes the LMR36503E-Q1 with the following features:

  • Wide input voltage range
  • Wide duty-cycle range
  • Integrated high-side and low-side power MOSFETs
  • Cycle-by-cycle over current protection
  • Internal loop compensation