MAX20471EVKIT

MAX20471 评估板


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说明

MAX20471评估板演示MAX20471的性能,器件属于MAX20471–MAX20473高效、低压DC-DC转换器系列。转换器IC将3.0V至4.0V输入电源转换为3.8V至5.25V电压,高达500mA。升压转换器在整个负载、电源和温度范围内的输出误差达到±1.5%。

IC可以工作在2.2MHz固定强制PWM (FPWM)模式,提供更好的抗噪性和负载瞬态响应;也可工作在脉冲频率调制模式(跳脉冲),确保轻载下的高效工作。2.2MHz工作频率允许使用全陶瓷电容,使外部元件最小化。可编程扩频调制最大程度抑制电磁辐射。相对于分立式方案,集成的低RDS(ON)开关大大提高重负载时的效率,并简化电路布局。

调节器包括True Shutdown™、软启动、过流和过热保护。

关键特性

  • 3.0V至4.0V工作电压
  • 3.8V至5.25V固定输出
  • 已安装500mA输出版本;兼容1A和2A输出版本
  • 2.2MHz操作
  • 反馈注入测试点稳定性
  • 支持汽车环境的可靠性
    • 电流模式、强制PWM或跳脉冲工作模式
    • 过热和短路保护
    • -40°C至+125°C工作温度范围
  • 经过验证的PCB布局
  • 完全装配并经过测试

应用

  • 汽车CAN收发器
  • 汽车负载点
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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相关资料


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