MAX1682: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

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
  • 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
MAX1682、MAX1683:典型工作电路
MAX1682、MAX1683:典型工作电路
应用
  • 蜂窝电话
  • 手持终端
  • PDA
  • 小型LCD板
数据手册DataSheet
语言下载文件备注
英文MAX1682-MAX1683.pdfRev 3; 12/2010
关键参数
Part NumberTopologyVIN
(V)
VIN
(V)
ICC
(mA)
Unadj. VOUT
(V)
IOUT
(A)
Oper. Freq.
(kHz)
Oper. Temp.
(°C)
Package/PinsBudgetary
Price
minmaxmaxtypSee Notes
MAX1682
  • Doubler
  • Unregulated
25.50.145+2xVIN0.04512-40 to +85SOT/5$0.71 @1k
MAX16830.3135SOT/5
技术资料
订购型号
型号状况推荐替代产品封装温度RoHS/无铅
MAX1682C/D停止供货DICE SALES,;NA引脚;DICE;-40°C至+85°C参考数据资料
MAX1682EUK+生产中SOT,;5引脚;9mm²-40°C至+85°CRoHS/无铅:无铅
MAX1682EUK+T生产中SOT,;5引脚;9mm²-40°C至+85°CRoHS/无铅:无铅
MAX1682EUK-T停止供货MAX1682EUK+TSOT,;5引脚;9mm²-40°C至+85°CRoHS/无铅:否
MAX1682-MAX1683.pdf MAX1683
Simple Current Limiter Is Programmable MAX4376
Negative Step-Down Converter Requires No Inductor MAX1682
Doubler/Inverter Charge Pumps Divide by Two MAX868
Choosing the Right Power-Supply IC for your Application MAX6774
DC-DC Conversion Without Inductors MAX871
Properties of the Charge-Pump Voltage Splitter MAX1697
MAX1682-MAX1683.pdf MAX1683