MAX20098

通用36V 2.2MHz Buck控制器,具有3.5µA IQ

业界最低IQ的汽车应用同步降压型控制器,轻载时的静态电流低至3.5µA


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说明

MAX20098为汽车应用2.2MHz同步降压型控制器IC,具有3.5µA IQ。器件工作在3.5V至42V输入电压,在压差条件下可运行在99%占空比。器件设计用于中至高功率的应用并且具有较宽的输入电压范围,例如汽车冷启动或引擎启停条件。

IC的降压型控制器工作在高达2.2MHz频率,允许使用小尺寸外部元件、降低输出纹波,以及保证无AM波段干扰。开关频率可通过电阻调节(220kHz至2.2MHz)。FSYNC输入的可编程能力支持三种频率模式,优化性能:强制固定频率、超低静态电流的跳脉冲模式、外部时钟同步。IC也提供SYNC输出,支持两片控制器并行工作。IC具有工厂可编程扩频选项,支持频率调制,最大程度降低EMI干扰。

IC具有PGOOD监测器,可监测欠压条件。保护特性包括逐周期限流和热关断保护。MAX20098工作在-40°C至+125°C汽车级温度范围。

MAX20098 MAX20098 放大+

关键特性

  • 满足严格的OEM模块功耗和性能规范
  • 跳脉冲模式下静态电流为3.5µA @ VOUT = 3.3V
  • ±1%输出电压精度:5.0V/3.3V固定电压,或1V至10V可调节
  • 支持启动就绪设计
    • 3.5V至42V宽输入电源范围
  • EMI抑制特性降低对敏感无线电频段的干扰,且不影响较宽输入电压范围
    • 50ns (典型值)最小导通时间,在2.2MHz下保证利用汽车电池实现3.3V输出无跳跃操作,
    • 扩频选项
    • 频率同步输入
    • 通过电阻设定频率:220kHz至2.2MHz
  • 集成和热增强封装,节省电路板空间和成本
    • 2MHz降压型控制器
    • 电流模式控制器,带有强制连续和跳脉冲模式
    • 16引脚、侧面防潮(SW) TQFN-EP封装
    • 提供20A参考设计
  • 保护特性提高系统可靠性
    • 电源欠压锁定
    • 过热和短路保护
    • 输出过压和欠压监测
    • -40°C至+125°C 1汽车级温度范围
  • 应用

    • 通用负载点(POL)
    • 信息娱乐系统
    • USB集线器
    Part NumberVIN
    (V)
    VIN
    (V)
    VOUT1
    (V)
    VOUT1
    (V)
    Preset VOUT
    (V)
    Output Adjust. MethodIOUT1
    (A)
    Switch TypeSynchronous SwitchingPower Good SignalDC-DC OutputsOper. Freq.
    (kHz)
    Design ToolsPackage/PinsBudgetary
    Price
    minmaxminmaxSee Notes
    MAX20098 3.542110
    3.3
    5
    Preset
    Resistor
    15ExternalYesYes1
    220
    250
    275
    300
    330
    350
    400
    440
    500
    540
    560
    600
    700
    750
    800
    1200
    1700
    2000
    2100
    2200
    EE-Sim
    TQFN-CU/16
    $1.08 @1k
    查看所有Step-Down Switching Regulators (389)
    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。


    MAX20098EVKIT: MAX20098 评估板

    工具和模型

  • EE-Sim: MAX20098 设计和仿真
  • 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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