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MAX1999EVKIT

MAX1999EVKIT

MAX1777、MAX1977、MAX1999评估板

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概述

说明

MAX1999评估板(EV kit)展示MAX1999器件的标准应用电路。该DC-DC变换器降压转换高电池电压或交流适配器的电压，产生笔记本电脑的系统电源。MAX1999评估板从7V至24V的电池电压输入，产生5V和3.3V的双路电压输出。具有5V/5A和3.3V/5A的输出能力，且效率超过90%。该评估板工作于200kHz/300kHz的开关频率(分别对应于5V/3.3V)，且具有出色的线路和负载瞬态响应。

该评估板是一块完全安装和测试过的电路板。通过改变反馈电阻R1至R4，可以评估2V至5.5V范围内的其它输出电压。

该评估板也可评估MAX1777 (200kHz/5.0V的SMPS和300kHz/3.3V的SMPS)和MAX1977 (400kHz/5.0V的SMPS和500kHz/3.3V的SMPS)。

关键特性

  • 7V至24V输入电压范围
  • 3.3V和5V输出电压
  • 2V至5.5V的可调输出(外置电阻)
  • 5A的输出电流(3.3V输出)
  • 5A的输出电流(5V输出)
  • 无需检流电阻(MAX1999)
  • 使用检流电阻的准确电流检测(MAX1777/MAX1977)
  • 200kHz/300kHz开关频率(分别对应于5V/3.3V)
  • 电源就绪(PGOOD)输出
  • 故障保护使能/禁止
  • 28引脚QSOP封装
  • 低截面元件
  • 经过完全安装与测试

    • 应用

    • 有线电视机顶盒

    设计资源

    质量与环境

    型号   生产流程   工艺   样本量   不合格   FIT @ 25°C   FIT @ 55°C   Material Composition  

    备注： 通过技术手段对故障率进行汇总，并映射到相关的材料部件号。 故障率与被测件的数量密切相关。

    质量管理体系 >
    环境管理体系 >

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