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4.5V-42V, 2.5A, High-Efficiency, Synchronous Step-Down DC-DC Converter with Internal Compensation

Wide Input Voltage, 2.5A Internal FET Synchronous Buck Converter Ideal for Industrial Applications

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设计与制作发展历程

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描述

The MAX17543 3.3V output evaluation kit (EV kit) provides a proven design to evaluate the MAX17543 high-voltage, high-efficiency, synchronous step-down DC-DC converter. The EV kit is preset for 3.3V output at load currents up to 2.5A and features a 450kHz switching frequency for optimum efficiency and component size. The EV kit features adjustable input undervoltage lockout, adjustable soft-start, open-drain active-low RESET signal, and external frequency synchronization.

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特征

  • Operates from a 5V to 42V Input Supply
  • 3.3V Output Voltage
  • Up to 2.5A Output Current
  • 450kHz Switching Frequency
  • Enable/UVLO Input, Resistor-Programmable UVLO Threshold
  • Adjustable Soft-Start Time
  • MODE Pin to Select Among PWM, PFM, or DCM Modes
  • Open-Drain RESET Output
  • External Frequency Synchronization
  • Overcurrent and Overtemperature Protection
  • Proven PCB Layout
  • Fully Assembled and Tested

描述

MAX17543 5V输出评估板(EV kit)提供经过验证的设计,用于评估MAX17543高压、高效、同步降压型DC-DC转换器。评估板预设为5V输出,负载电流高达2.5A,开关频率为500kHz,可获得最佳的效率和元件尺寸。评估板具有可调节输入欠压锁定、可调节软启动、低电平有效RESET开漏信号,以及外频率同步。

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特征

  • 6.5V至42V输入电源工作范围
  • 5V输出电压
  • 高达2.5A输出电流
  • 500kHz开关频率
  • 使能/UVLO输入,电阻设置UVLO门限
  • 可调节软启动时间
  • MODE引脚选择PWM、PFM或DCM模式
  • 开漏、低电平有效RESET输出
  • 外部频率同步
  • 过流和过热保护
  • 经过验证的PCB布局
  • 全部装配并经过测试

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工具和模型

EE-Sim: 设计和仿真MAX17543

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支持与训练

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Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal.

参量

主要特征

应用/用途

  • 基站电源
  • 配电稳压器
  • 通用负载点电源
  • 高压单板系统
  • 工业电源

描述

技术文档

支持与训练

Search our knowledge base for answers to your technical questions.

过滤搜索

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal.