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MAX1682, MAX1683
开关电容倍压器

SOT23倍压电路,仅需要两个外部电容,为PDA、蜂窝电话提供超小尺寸的LCD电源


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概述
完整的数据资料 (PDF, 200kB)
英文 Download this datasheet in PDF format下载

The ultra-small MAX1682/MAX1683 monolithic, CMOS charge-pump voltage doublers accept input voltages ranging from +2.0V to +5.5V. Their high voltage-conversion efficiency (over 98%) and low operating current (110µA for MAX1682) make these devices ideal for both battery-powered and board-level voltage-doubler applications.

Oscillator control circuitry and four power MOSFET switches are included on-chip. The MAX1682 operates at 12kHz, and the MAX1683 operates at 35kHz. A typical application includes generating a 6V supply to power an LCD display in a hand-held PDA. Both parts are available in a 5-pin SOT23 package and can deliver 30mA with a typical voltage drop of 600mV.

关键特性   应用/使用
  • 5-Pin SOT23 Package
  • +2.0V to +5.5V Input Voltage Range
  • 98% Voltage-Conversion Efficiency
  • 110µA Quiescent Current (MAX1682)
  • Requires Only Two Capacitors
  • Up to 45mA Output Current

 
  • 蜂窝电话
  • 手持终端
  • PDA
  • 小型LCD板

    Key Specifications:   Charge Pumps
    Part Number Topology VIN (min) (V) VIN (max) (V) Operating Current, ICC (max) (mA) Unadjusted VOUT (V) IOUT (typ) (A) Operating Frequency (kHz) Package Operating Temp. Range (°C) Price**
    MAX1682  Doubler
    Unregulated
    2 5.5 0.145 +2xVIN 0.045 12 SOT-23/5 -40 to +85 $0.72 @ 1k
    MAX1683  0.31 35 $0.72 @ 1k
    See All Charge Pumps (51)
    Notes:
    **This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

    图表
    MAX1682,MAX1683:典型工作电路
    典型工作电路

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    参考文献: 19-1305; Rev. 2; 2001-03-23
    本页最后一次更新: 2007-06-01



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