News

技术资料

Navigate:Home > News > 技术资料 > Details

MAX1681ESA 125mA、频率可选、开关电容电压变换器

Update:2009-04-10 Views:5385

MAX1681ESA 型号
MAX1681ESA 类型 125mA、频率可选、开关电容电压变换器
MAX1681ESA 应用
MAXIM      品牌系列产品 
MAX1681ESA 批号
MAX1681ESA 数量 1000
MAX1681ESA 封装 SOP-8
MAX1681ESA 包装 2000/reel
MAX1681ESA 价格
MAX1681ESA 备注 原装正品
MAX1681ESA 技术资料(点击型号PDF文档下载)
MAX1681ESA 相关型号

询价热线:

0755-83283733, 83031813,33062500

QQ:623069669

MSN:sumzi003@sumzi.com  sumzi006@sumzi.com

Email:sumzi@sumzi.com 

http://www.sumzi.com

 

概述
The MAX1680/MAX1681 inductorless switched-capacitor voltage converters either invert an input voltage of +2.0V to +5.5V or double it while supplying up to 125mA output current. They have a selectable-frequency option that allows the use of small capacitors: 4.7µF (MAX1680), 1µF (MAX1681). With their high output current capability, these charge-pump devices are suitable replacements for inductor-based regulators, which require more expensive external components and additional board space.

The devices' equivalent output resistance (typically 3.5Ω) allows them to deliver as much as 125mA with only a 440mV drop. A shutdown feature reduces quiescent current to less than 1µA. The MAX1680/MAX1681 are available in 8-pin SO packages. For devices that deliver up to 50mA in smaller µMAX® packages, refer to the MAX860/MAX861 data sheet.

关键特性

  • Selectable Switching Frequencies:
    • 125kHz/250kHz (MAX1680)
    • 500kHz/1MHz (MAX1681)
  • Allow Use of Small Capacitors (1µF for the MAX1681)
  • 125mA Output Current
  • 3.5Ω Output Impedance
  • 1µA Logic-Controlled Shutdown
  • Configurable as Voltage Inverters or Doublers
  • +2.0V to +5.5V Input Voltage Range
  • Available in 8-Pin SO Packages
  • 90% Efficiency

    应用/使用

  • 接口供电
  • 本地负电源
  • MOSFET偏置
  • 运算放大器电源

  • Applications|Products|Solutions|News|Partners|Supports|Contact
    Copyright © 2002-2025Copyright @ 2017 Sumzi Electric Technical Co,.Ltd Of SHENZHEN . All rights reserved.No.11091659 for ICP Registration Purpose in Guangdong