MAX16962

4A、2MHz、同步降压型直流-直流转换器

业界首款汽车级同步降压型直流-直流转换器,最大输出4A电流


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说明

MAX16962是一款高效率、同步、降压转换器,工作在2.7V至5.5V输入电压范围,提供0.8V至3.6V输出电压范围。宽输入/输出电压范围以及高达4A的负载驱动能力,使其理想用于负载点和后端稳压。MAX16962在整个负载、电源和温度范围内的输出误差保持在-3.7%/+2.6%以内。

MAX16962可以工作在2.2MHz固定频率PWM模式,提供更好的抗噪性和负载瞬态响应;也可工作在脉冲频率调制模式(SKIP),确保轻载下的高效工作。2.2MHz工作频率允许使用全陶瓷电容,使外部元件最小化。可选择的扩频调节有效抑制电磁辐射。

相对于分立式方案,集成的低RDSON开关大大提高重载下的效率,并简化电路布局。

MAX16962提供预设的固定输出电压,或可调节输出电压(见选型指南)。工厂预设输出电压版本允许用户获得-3.7%/+2.6%的输出电压精度,无需使用外部电阻;可调输出电压版本具有更大灵活性,可利用外部电阻分压器将输出电压设置在0.8V至3.6V范围的任何值。

其它特性包括8ms软启动、16ms电源就绪输出延时、过流和过热保护。

MAX16962采用增强散热的16引脚、TSSOP-EP封装和4mm x 4mm、16引脚、TQFN-EP封装,-40°C至+125°C汽车级工作温度范围。

MAX16962: Typical Application Circuit MAX16962: Typical Application Circuit 放大+

关键特性

  • 小尺寸外部元件
    • 2.2MHz工作频率
  • 理想用于负载点电源
    • 4A最大负载电流
    • 可调输出电压:0.8V至3.6V
    • 2.7V至5.5V工作电压
  • 轻载时高效率
    • 26µA跳脉冲模式静态电流
  • 抑制电磁干扰
    • 可编程SYNC I/O
    • 工作在AM RF波段以上
    • 可提供扩频模式
  • 低功耗省电模式
    • 1µA关断电流
    • 电源就绪指示开漏输出
  • 软启动
  • 启动时限制浪涌电流
  • 过热和短路保护
  • 4mm × 4mm、16引脚、薄型QFN封装和16引脚、TSSOP封装
  • -40°C至125°C工作温度范围
  • 应用

    • 汽车信息终端
    • 工业/军用产品
    • 负载点应用
    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)
    Package/PinsBudgetary
    Price
    minmaxminmaxSee Notes
    MAX16962 2.75.50.83.63.3
    Preset
    Resistor
    4InternalYesYes12200
    TQFN/16
    TSSOP/16
    $3.71 @1k
    查看所有Step-Down Switching Regulators (388)
    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。


    MAX16962REVKIT: Evaluation Kit for the MAX16962R

    质量和环境数据

    产品可靠性报告: MAX16962.pdf 
    无铅封装的锡(Sn)晶须报告
    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。

    质量管理体系 >
    环境管理体系 >

     
    Status:
    Package:
    Temperature:

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