MAX20039

汽车应用、2V至36V、2.2MHz、0.6A/1.2A升/降压转换器,集成H桥架构

业界首款2MHz汽车应用升/降压转换器,2V冷启动至VBATT无缝工作


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说明

MAX20039/MAX20040 IC是小尺寸、同步升/降压型转换器家族,集成高边和低边开关。MAX20040在2V至36V输入电压下,提供高达1.2A电流,空载时的静态电流仅为52μA。IC输出电压精度高达±2%。通过PGOOD信号,可监测电压质量。

MAX20039/40提供5V固定输出电压和4.0V至12V可编程输出电压。详细情况请参考定购信息。频率可在220kHz至2.2MHz范围内调节,允许使用较小的外部元件、降低输出纹波,以及保证无AM干扰。MAX20040B和MAX20040D提供静态电流仅为52uA的跳脉冲模式。IC可工作在扩频调制模式,将调制频率引起的EMI辐射发射降至最低。

MAX20039/MAX20040采用小尺寸(4mm x 4mm)、20引脚、侧面可润湿TQFN封装,使用极少的外部元件。

设计资源: Provide a Safe Power Path from the Car Battery to Remote Cameras ›

关键特性

  • 满足严格的汽车级质量和可靠性要求
    • 2V至36V工作VIN,允许工作在“冷启动”条件
    • 可承受高达40V输入瞬态
    • EN引脚兼容3.3V至40V
    • 0.6A (最大值)输出电流(MAX20039)
    • 1.2A (最大值)输出电流(MAX20040)
    • -40°C至+125°C汽车级温度范围
    • AEQ-100认证
    • 提高效率的同时,降低BOM成本、减小电路板空间
    • 集成FET H桥架构
    • 固定输出电压
    • 20引脚SWTQFN封装
  • 低静态电流帮助设计师满足严格的OEM电流要求(仅限B和D版本)
    • 待机模式下的静态电流仅为52μA
    • 关断模式下静态电流仅为10μA (最大值)
  • 高开关频率允许使用小尺寸外部元件
    • 200kHz至2.2MHz工作频率
    • 跳脉冲模式,提高低功率工作效率(仅限B和D版本)
    • 固定频率PWM模式
    • 外部频率同步
  • 降低开关频率引起的EMI辐射
    • 可使能或禁止扩频

应用

  • 车身电子
  • 信息娱乐系统
  • 负载点电源
  • 负载点电源
  • 启停系统

Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

MAX20040EVKIT: MAX20039/MAX20040评估套件

工具和模型

  • EE-Sim: MAX20039 设计和仿真
  • 申请可靠性报告: MAX20039 
    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。

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    类型 编号 标题
    评估板10276MAX20040EVKIT MAX20039/MAX20040评估套件