MAXM17503EVKIT

MAXM17503评估板


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说明

MAXM17503评估板(EV kit)为MAXM17503高压、高效、电流模式、同步降压型DC-DC开关电源模块的演示电路。评估板设计用于5V输出,提供2.5A负载电流,工作在11V至60V较宽输入电压范围。评估板开关频率为最优500kHz,允许使用小尺寸元件,有助于最大程度减小方案尺寸,同时保持高性能。评估板具有高精度使能输入、低电平有效开漏RESET输出信号和外部频率同步,提供简单、可靠的启动排序,避免调节器之间的拍频。评估板也包括可选的元件占位面积(用以设置不同的输出电压)、可调节输入欠压锁定、软启动时间,以控制启动之间的浪涌电流。MAXM17503 IC数据资料提供器件的完整说明,在更改演示电路之前应仔细阅读本数据资料。

关键特性

  • 高度集成方案,带有集成屏蔽电感
  • 11V至60V较宽输入范围
  • 利用FB (反馈引脚)上的固定电阻分压器预设5V输出
  • 可编程输出电压(0.9V至12V)
  • 高达2.5A输出电流
  • 效率高达93% (VIN = 12V,VOUT = 5V at 1.0A)
  • 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
  • 可选择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
  • 薄型、表贴元件
  • 无铅(Pb)/符合RoHS标准
  • 完全装配并经过测试
  • 经过验证的PCB布局

应用

  • 基站负载点稳压器
  • 配电稳压器
  • FPGA和DSP负载点稳压器
  • HVAC与楼宇控制
  • 工业电源
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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