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MIC3172YM

  • 描述:输出配置: 阳性或阴性 拓扑结构: 降压、升压、Cuk、反激、正向转换器 开关频率: 100千赫兹 输出电流: 1.25A 供应商设备包装: 8-SOIC
  • 品牌: 微芯 (Microchip)
  • 交期:5-7 工作日
渠道:
  • 自营
  • 得捷
  • 贸泽

起订量: 1

数量 单价 合计
1+ 25.78472 25.78472
25+ 21.49692 537.42317
100+ 19.57755 1957.75590
  • 库存: 0
  • 单价: ¥23.39457
  • 数量:
    - +
  • 总计: ¥25.78
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规格参数

  • 部件状态 可供货
  • 输出数量 one
  • 制造厂商 微芯 (Microchip)
  • 安装类别 表面安装
  • 工作温度 -40摄氏度~85摄氏度(TA)
  • 最小电压输入 3V
  • 最大输入电压 40伏
  • 最大输出电压 -
  • 同步整流装置
  • 输出类别 -
  • 最小输出电压 / 固定输出电压 -
  • 包装/外壳 8-SOIC (0.154", 3.90毫米 Width)
  • 输出配置 阳性或阴性
  • 供应商设备包装 8-SOIC
  • 输出电流 1.25A
  • 功能 上一步,下一步,上一步/下一步
  • 拓扑结构 降压、升压、Cuk、反激、正向转换器
  • 开关频率 100千赫兹

MIC3172YM 产品详情

General Description
The MIC2172 and MIC3172YM are complete 100kHz SMPS current-mode controllers with internal 65V 1.25A power switches. The MIC2172 features external frequency synchronization or frequency adjustment, while the MIC3172YM features an enable/shutdown control input.
Although primarily intended for voltage step-up applications, the floating switch architecture of the MIC2172/3172 makes
it practical for step-down, inverting, and Cuk configurations as well as isolated topologies.
Operating from 3V to 40V, the MIC2172/3172 draws only 7mA of quiescent current making it attractive for battery operated supplies.
The MIC3172YM is for applications that require on/off control of the regulator. The MIC3172YM is externally shutdown by applying a TTL low signal to EN (enable). When disabled, the MIC3172YM draws only leakage current (typically less than 1µA). EN must be high for normal operation. For applications not requiring control, EN must be tied to VIN or TTL high.
The MIC2172 is for applications requiring two or more SMPS regulators that operate from the same input supply. The MIC2172 features a SYNC input which allows locking of its internal oscillator to an external reference. This makes it possible to avoid the audible beat frequencies that result from the unequal oscillator frequencies of independent SMPS regulators.
A reference signal can be supplied by one MIC2172 designated as a master. To insure locking of the slave’s oscillators, the reference oscillator frequency must be higher than the slave’s. The master MIC2172’s oscillator frequency is increased up to 135kHz by connecting a resistor from SYNC to ground (see applications information).

The MIC2172/3172 is available in an 8-pin plastic DIP or SOIC for –40°C to +85°C operation.

Features
• 1.25A, 65V internal switch rating
• 3V to 40V input voltage range
• Current-mode operation
• Internal cycle-by-cycle current limit
• Thermal shutdown
• Low external parts count
• Operates in most switching topologies
• 7mA quiescent current (operating)
• <1µA quiescent current, shutdown mode (MIC3172)
• TTL shutdown compatibility (MIC3172)
• External frequency synchronization (MIC2172)
• External frequency trim (MIC2172)
• Fits most LT1172 sockets (see applications info)

Applications
• Laptop/palmtop computers
• Toys
• Hand-held instruments
• Off-line converter up to 50W(requires external power switch)
• Predriver for higher power capability
• Master/slave configurations (MIC2172)




Feature

  • 1.25A, 65V internal switch rating
  • 3V to 40V input voltage range
  • Current-mode operation
  • Internal cycle-by-cycle current limit
  • Thermal shutdown
  • Low external parts count
  • Operates in most switching topologies
  • 7mA quiescent current (operating)
  • <1µA quiescent current, shutdown mode (MIC3172)
  • TTL shutdown compatibility (MIC3172)
  • External frequency synchronization (MIC2172)
  • External frequency trim (MIC2172)
  • Fits most LT1172 sockets (see applications info)


(Picture: Pinout)


MIC3172YM所属分类:DC-DC开关调节器,MIC3172YM 由 微芯 (Microchip) 设计生产,可通过久芯网进行购买。MIC3172YM价格参考¥23.394567,你可以下载 MIC3172YM中文资料、PDF数据手册、Datasheet数据手册功能说明书,可查询MIC3172YM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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