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LM2575BU

  • 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: 52千赫兹 输出电流: 1A 供应商设备包装: TO-263-5
  • 品牌: 微芯 (Microchip)
  • 交期:5-7 工作日
渠道:
  • 自营
  • 得捷
  • 贸泽

起订量: 264

  • 库存: 0
  • 单价: ¥7.02561
  • 数量:
    - +
  • 总计: ¥1,854.76
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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)
  • 工作温度 -40摄氏度~125摄氏度(TJ)
  • 安装类别 表面安装
  • 最大输入电压 40伏
  • 同步整流装置
  • 输出电流 1A
  • 最小电压输入 4伏
  • 包装/外壳 到263-6,DPak(5引线+接线片),TO-263BA
  • 最大输出电压 37伏
  • 部件状态 过时的
  • 最小输出电压 / 固定输出电压 1.23伏
  • 开关频率 52千赫兹
  • 供应商设备包装 TO-263-5

LM2575BU 产品详情

The LM2575BU series of monolithic integrated circuits provide all the active functions for a step-down (buck) switching regulator. Fixed versions are available with a 3.3V, 5V, 12V, or 15V fixed output. Adjustable versions have an output voltage range from 1.23V to 37V. Both versions are capable of driving a 1A load with excellent line and load regulation.

These regulators are simple to use because they require a minimum number of external components and include internal frequency compensation and a fixed-frequency oscillator.

The LM2575BU series offers a high efficiency replacement for popular three-terminal adjustable linear regulators. It substantially reduces the size of the heat sink, and in many cases no heat sink is required.

A standard series of inductors available from several different manufacturers are ideal for use with the LM2575BU series. This feature greatly simplifies the design of switch-mode power supplies.

The feedback voltage is guaranteed to ±2% tolerance for adjustable versions, and the output voltage is guaranteed to ±3% for fixed versions, within specified input voltages and output load conditions. The oscillator frequency is guaranteed to ±10%. External shutdown is included, featuring less than 200µA standby current. The output switch includes cycle-by-cycle current limiting and thermal shutdown for full protection under fault conditions.

Feature

  • 3.3V, 5V, 12V, and adjustable output versions
  • Voltage over specified line and load conditions:
    • Fixed version: ±3% max. output voltage
    • Adjustable version: ±2% max. feedback voltage
  • Guaranteed 1A output current
  • Wide input voltage range: 4V to 40V
  • Wide output voltage range: 1.23V to 37V
  • Requires only 4 external components
  • 52kHz fixed frequency internal oscillator
  • Low power standby mode IQ typically < 200µA
  • 80% efficiency (adjustable version typically > 80%)
  • Uses readily available standard inductors
  • Thermal shutdown and current limit protection
  • 100% electrical thermal limit burn-in
LM2575BU所属分类:DC-DC开关调节器,LM2575BU 由 微芯 (Microchip) 设计生产,可通过久芯网进行购买。LM2575BU价格参考¥7.025613,你可以下载 LM2575BU中文资料、PDF数据手册、Datasheet数据手册功能说明书,可查询LM2575BU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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