MAX20048

汽车应用、40V、55µA IQ、2.2MHz、H桥、升/降压控制器

业界IQ最低的升/降压控制器,具有业界最佳的瞬态响应


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说明

MAX20048为电流模式升/降压控制器。器件工作在4.5V至36V输入电压,空载时的静态电流仅为55μA。满足启动条件后,器件即可工作在2V至36V扩展输入电压范围。开关频率可通过电阻在220kHz至2.2MHz范围内设置,且可同步到外部信号。

器件输出电压可设置为固定为5V或4V至25V可调节。宽输入电压范围,以及在电池瞬态期间维持恒定输出电压的能力,使其成为汽车应用的理想选择。轻载应用中,逻辑输入(FSYNC)允许器件工作在跳脉冲模式或固定频率强制PWM模式;前者可降低耗流,后者可避免频率波动,有助于最小化EMI。保护特性包括逐周期限流、带自动恢复功能的热关断保护。

MAX20048采用小尺寸、4mm x 4mm、24引脚TQFN-EP SW封装。

关键特性

  • 满足严格的汽车级质量和可靠性要求
    • VIN工作范围:2V至36V,允许工作在冷启动条件
    • 高达40V输入瞬态容限
    • EN引脚兼容+3.3V至+40V
    • -40°C至+125°C汽车级温度范围
    • AEQ-100认证
  • 高效、小尺寸方案
    • 跳脉冲模式,提高低功率工作效率
    • 5V固定和4V至25V可调节输出电压
    • 高开关频率允许使用小外部元件
    • 小尺寸、4mm x 4mm、24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
    • 待机模式下静态电流仅为55μA
    • 关断模式下静态电流仅为10μA (最大值)
  • EMI抑制,以满足CISP25 Class 5要求
    • 220kHz至2.2MHz工作频率
    • 固定频率PWM模式
    • 外部频率同步或SYNC OUTCapability (可由OTP选项选择)
    • 可由OTP选项使能或禁止IC的扩频功能

应用

  • 仪表板
  • 负载点电源
  • 远端显示
  • 启停系统
  • USB电源

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


Part NumberVIN
(V)
VIN
(V)
VOUT1
(V)
VOUT1
(V)
IOUT1
(A)
Switch Type
minmaxminmaxmax
MAX20048 24042525External

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。

MAX20048EVKIT: MAX20048 评估套件

工具和模型

  • EE-Sim: MAX20048 设计和仿真
  • 申请可靠性报告: MAX20048 
    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。

    质量管理体系 >
    环境管理体系 >

     
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    相关资料


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