MAX16956

36V、300mA、微型降压转换器,1.1µA IQ

业界最低IQ的汽车级降压转换器,可替代始随时就绪的LDO


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说明

MAX16956是小尺寸、同步降压型转换器,集成高边和低边开关。器件在3.5V至36V输入电压下,提供高达300mA电流,空载时的静态电流仅为1.1µA (固定输出版本)。通过低电平有效的RESET信号,可监测电压质量。器件可工作在接近断开的97%占空比,使其可理想用于汽车应用。

器件提供固定5V和3.3V输出电压版本,以及可调节输出版本。对于可调节输出版本,用户可使用电阻分压器在1V至10V之间调节输出电压。频率固定为2.1MHz,允许使用较小的外部元件,以及降低输出纹波、最大程度减少AM射频干扰。器件提供强制PWM和跳脉冲工作模式,跳脉冲模式下的静态电流仅为1.1µA。定购器件时可选择扩频调制,将开关频率引起的EMI辐射发射降至最低。

MAX16956采用小尺寸(3mm × 3mm) 10引脚µMAX®封装,工作在-40°C至+125°C汽车级温度范围。器件通过AEC-Q100认证。

MAX16956: Block Diagram MAX16956: Block Diagram 放大+

关键特性

  • 集成和高开关频率节省空间
    • DC-DC转换器,驱动电流高达300mA
    • 固定5V/3.3V或可编程输出电压选项(1V至10V)
    • 电流模式控制结构
    • 2.1MHz工作频率
    • 固定5.4ms内部软启动
  • 扩频调制降低EMI辐射
  • 低IQ 支持设计满足严格的OEM模块功耗要求
    • 待机模式下的静态电流仅为1.1µA (仅限固定输出电压版本)
  • 较宽输入电压范围,支持汽车应用
    • VIN工作范围:3.5V至36V (42V容限)
    • 97% (最大)占空比,低压差
  • 可靠的性能支持较宽范围的汽车应用
    • 短路、热保护
    • -40°C至+125°C汽车级温度范围
    • AEC-Q100认证

应用

  • 汽车车身ECU
  • DC动力系统分配
  • 负载点应用

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.

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工具和模型

  • EE-Sim: MAX16956 设计和仿真
  • MAX16956 SIMPLIS Schematic
  • 产品可靠性报告: MAX16956.pdf 
    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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