MAX17671FEVKIT

MAX17671 5V降压型转换器和3.3V线性调节器输出电压评估板


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说明

MAX17671F评估板(EV kit)为完全装配并经过测试的电路板,演示MAX17671F双路输出调节器的性能,器件集成高效、高压、固定输出电压、同步降压型DC-DC转换器和高PSRR、低噪声、固定输出线性调节器。评估板专为高效方案而设计,产生5V降压型转换器输出电压和固定3.3V线性调节器输出电压,负载电流分别高达150mA和50mA。线性调节器输出带有负载时,降压型转换器输出电流减小ILDO,其中ILDO为线性调节器输出的负载电流。评估板在空载条件下的耗流仅为70μA。降压型转换器设置为200kHz开关频率,使用提供的器件时峰值效率为90%。双路输出器件使用简单,易于配置,只需最少的外部元件。评估板具有可调节输入欠压锁定、低电平有效RESET开漏信号、滞回峰值限流保护,以及外部频率同步。

关键特性

  • 降压型转换器的输入电压范围为6.5V至60V
  • 降压型转换器的输出电压为5V,连续负载电流高达150mA
  • 线性调节器的输出电压为3.3V,连续负载电流高达50mA
  • 降压型转换器的峰值效率为90%
  • 70µA空载电流
  • 200kHz开关频率
  • 内部软启动
  • EN/UVLO输入,电阻设置UVLO门限
  • MODE/SYNC引脚选择PWM或PFM模式
  • 低电平有效RESET开漏输出监测双路输出
  • 外部频率同步
  • 过流和过热保护
  • 经过验证的PCB布局
  • 完全装配并经过测试

应用

  • 电池供电设备
  • 高压线性调节器替代
  • HVAC与楼宇控制
  • 工业传感器和过程控制
型号   生产流程   工艺   样本量   不合格   FIT @ 25°C   FIT @ 55°C  

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。

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