MAX17020EVKIT

MAX17020评估板


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说明

MAX17020评估板(EV kit)用于演示MAX17020的标准应用电路。这款双Quick-PWM™同步DC-DC转换器对高压电池和/或交流适配器进行降压转换,产生笔记本电脑的主电源。MAX17020评估板可以从6V至24V电池输入产生1.5V (VOUT1)和1.05V (VOUT2)两路输出电压。1.5V输出可提供至少6A电流,1.05V输出可提供至少10A电流。两路输出电压可以在0.7V至5.5V范围内调节。一路外部非稳压型电荷泵从1.5V输出产生8V (VSEC)辅助输出,电流可达2mA。

MAX17020内置一路固定的5V低压差(LDO)线性稳压器(电流可达100mA)和一路3.3V、5mA常开电源,用于实时时钟(RTC)供电。

MAX17020评估板工作在400kHz/300kHz的开关频率(分别对应于1.5V/1.05V输出),具有优异的电源和负载瞬态响应特性。

评估5V和3.3V输出时,可以使用MAX8778评估板。MAX17020与MAX8778引脚兼容。

关键特性

  • 6V至24V输入范围
  • 3.3V、5mA RTC电源(常开)
  • 内部5V、100mA线性稳压器(0.6V至4V可调)
  • 输出电压:
    • 1.05V、10AMIN (VOUT2,0至2V动态可调)或预置为3.3V
    • 1.5V、6AMIN (VOUT1,0.7V至5.5V可调)
    • 8VMIN、2mA (电荷泵输出)
  • 第二路输出支持0至2V REFIN2动态输入
  • 400kHz/300kHz开关频率(分别对应于1.5V/1.05V输出)
  • 电源就绪(PGOOD1和PGOOD2)指示
  • 第二路反馈输入维持电荷泵工作
  • 32引脚、5mm x 5mm薄型QFN封装
  • 完全安装并经过测试

应用

  • DDR1、DDR2、DDR3电源
  • 游戏控制台
  • 图形卡
  • I/O系统电源(1.5V和1.05V电源)
  • 低功耗I/O和芯片组电源
  • 主系统电源(5V和3.3V电源)
  • 笔记本电脑
  • PDA与移动通信
  • 电信
  • 2至4节Li+电池供电产品
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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