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MIC2179BSM

  • 描述:输出类别: 可调节 输出配置: 阳性的 拓扑结构: 美元 开关频率: 200千赫兹 输出电流: 1.5A 供应商设备包装: 20-SSOP
  • 品牌: 微芯 (Microchip)
  • 交期:5-7 工作日
渠道:
  • 自营
  • 得捷
  • 贸泽

起订量: 1

  • 库存: 0
  • 单价: ¥22.23570
  • 数量:
    - +
  • 总计: ¥22.24
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规格参数

  • 功能 降压
  • 输出配置 阳性的
  • 拓扑结构 美元
  • 输出类别 可调节
  • 输出数量 one
  • 制造厂商 微芯 (Microchip)
  • 最小电压输入 4.5伏
  • 工作温度 -40摄氏度~125摄氏度(TJ)
  • 安装类别 表面安装
  • 输出电流 1.5A
  • 同步整流装置
  • 开关频率 200千赫兹
  • 最小输出电压 / 固定输出电压 1.245伏
  • 最大输入电压 16.5伏
  • 最大输出电压 16.5伏
  • 包装/外壳 20-SSOP(0.209“,5.30毫米宽)
  • 供应商设备包装 20-SSOP
  • 部件状态 Digi-Key停产

MIC2179BSM 产品详情

The Micrel MIC2179BSM is a 200kHz synchronous buck (step-down) switching regulator designed for high-efficiency, battery-powered applications.

The MIC2179BSM operates from a 4.5V to 16.5V input and features internal power MOSFETs that can supply up to 1.5A output current. It can operate with a maximum duty cycle of 100% for use in low-dropout conditions. It also features a shutdown mode that reduces quiescent current to less than 5µA.

The MIC2179BSM achieves high efficiency over a wide output current range by operating in either PWM or skip mode. The operating mode is externally selected, typically by an intelligent system, which chooses the appropriate mode according to operating conditions, efficiency, and noise requirements. The switching frequency is preset to 200kHz and can be synchronized to an external clock signal of up to 300kHz.

The MIC2179BSM uses current-mode control with internal current sensing. Current-mode control provides superior line regulation and makes the regulator control loop easy to compensate. The output is protected with pulse-by-pulse current limiting and thermal shutdown. Undervoltage lockout turns the output off when the input voltage is less than 4.5V.

The MIC2179BSM and is packaged in a 20-lead SSOP package with an operating temperature range of -40°C to +85°C.

Feature

  • 4.5V to 16.5V input voltage range
  • Dual-mode operation for high efficiency (up to 96%)
    • PWM mode for > 150mA load current
    • Skip mode for <150mA load current
  • 150mΩ internal power MOSFETs at 12V input
  • 200kHz preset switching frequency
  • Low quiescent current
    • 1.0mA in PWM mode
    • 600µA in skip mode
    • < 5µA in shutdown mode
  • Current-mode control
    • Simplified loop compensation
    • Superior line regulation
  • 100% duty cycle for low dropout operation
  • Current limit
  • Thermal shutdown
  • Undervoltage lockout
MIC2179BSM所属分类:DC-DC开关调节器,MIC2179BSM 由 微芯 (Microchip) 设计生产,可通过久芯网进行购买。MIC2179BSM价格参考¥22.235703,你可以下载 MIC2179BSM中文资料、PDF数据手册、Datasheet数据手册功能说明书,可查询MIC2179BSM规格参数、现货库存、封装信息等信息!

微芯 (Microchip)

微芯 (Microchip)

Microchip Technology Inc.是微控制器和模拟半导体的领先供应商,为全球数千种不同的客户应用程序提供低风险的产品开发、更低的系统总成本和更快的上市时间。Microchip总部位于亚利...

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