MAX16931

2MHz、36V、双通道降压转换器,带有预升压,20µA静态电流

业内性能最高的双通道降压控制器,预升压功能支持汽车冷启动设计,有效节省空间


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说明

MAX16930/MAX16931提供两个高压、同步降压控制器和一个预升压控制器。器件工作在2V至42V输入电压,带有预升压模式,以95%占空比支持低压差工作条件。器件设计工作在宽输入电压范围、中等至大功率应用,例如汽车冷启动或引擎启停条件。

MAX16930/MAX16931降压型控制器以180°错相工作,频率高达2.2MHz,允许使用小尺寸外部元件,降低输出纹波,并确保无AM波段干扰。开关频率可通过电阻调节。FSYNC输入编程支持三种频率模式以优化性能:强制固定频率工作模式、超低静态电流(20µA)的跳脉冲模式和外时钟同步模式。器件也提供扩频选项,将EMI干扰降至最小。

MAX16930/MAX16931带有异步升压控制器,预升压电路在低输入电压条件下打开,为降压控制器通道供电,输入电压低至2V。

器件也具有电源就绪监测器以及过压和欠压锁定。保护功能包括逐周期限流和热关断保护。

器件采用40引脚TQFN-EP和侧面防潮QFND-EP封装,工作在-40°C至+125°C汽车级温度范围。
MAX16930, MAX16931: Typical Operating Circuit MAX16930, MAX16931: Typical Operating Circuit 放大+

关键特性

  • 两路2MHz降压控制器
  • 50ns最小导通时间,允许汽车电池输出3.3V,2.2MHz
  • 180°错相工作
  • 预升压,可工作在最低2V电压
  • 20µA工作电流
  • 宽输入电压范围:3.5V至36V (无预升压)
  • 通过电阻设定频率:200kHz至2.2MHz
  • ±1%输出电压精度:固定5.0V/3.3V或1V至10V可调
  • 电流模式控制器,带有强制连续工作模式和跳脉冲模式
  • 频率同步输入
  • 电源过压和欠压锁定
  • 过温和短路保护
  • 增强散热的40引脚TQFN-EP和侧面防潮QFND-EP封装
  • -40°C至+125°C工作温度范围

应用

  • DC动力系统分配
  • 导航及无线电头单元
  • 汽车电源POL应用

请查看具体的参数规格 Step-Down Switching Regulators (409)


Part NumberVIN
(V)
VIN
(V)
VOUT1
(V)
(min)(max)(min)
MAX16930 2421

请查看具体的参数规格 Step-Down/Up Switching Regulators (33)


Part NumberVIN
(V)
VIN
(V)
VOUT1
(V)
IOUT1
(A)
(min)(max)(min)(max)
MAX16930 2421-
MAX16931 10

Pricing Notes:
价格仅供参考,用于同类产品的比较。所提供报价为美元,需要依汇率折合成人民币。该价格将因当地关税、税率和汇率而异。有关特定订购量和指定版本的报价和供货问题,请参考:价格与供货网站或与指定代理商联系。

MAX16930EVKIT: 评估MAX16930和MAX16931

工具和模型

  • EE-Sim: MAX16931 设计和仿真
  • MAX16931 SIMPLIS Schematic
  • 申请可靠性报告: MAX16931 
    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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