MAX865:紧凑的、双输出电荷泵

提供双极性输出,可理想用于空间受限应用

The MAX865 is a CMOS charge-pump DC-DC converter in an ultra-small µMAX® package. It produces positive and negative outputs from a single positive input, and requires only four capacitors. The charge pump first doubles the input voltage, then inverts the doubled voltage. The input voltage ranges from +1.5V to +6.0V. The internal oscillator is guaranteed to be between 20kHz and 38kHz, keeping noise above the audio range while consuming minimal supply current. A 75Ω output impedance permits useful output currents up to 20mA. The MAX865 comes in a 1.11mm-high, 8-pin µMAX package that occupies half the board area of a standard 8-pin SOIC. For a device with selectable frequencies and logic-controlled shutdown, refer to the MAX864 data sheet.

关键特性
  • 1.11mm-High µMAX Package
  • Compact: Circuit Fits in 0.08in²
  • Requires Only Four Capacitors
  • Dual Outputs (positive and negative)
  • +1.5V to +6.0V Input Voltage
  • 20kHz (min) Frequency (above the audio range)
MAX865:典型工作电路
MAX865:典型工作电路
应用
  • 数据采集
  • LCD面板表
  • 低成本分割电源,用于低压系统
  • 无线手机中的低电压GaAsFET偏置
  • 用于模拟电路的降压电源
  • 3节镍基电池或1节Li+电池降压电源
  • VCO和GaAsFET电源
数据手册DataSheet
语言下载文件备注
英文MAX865.pdfRev 1; 05/1997
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
MAX865
  • Doubler
  • Dual Output
  • Inverter
  • Unregulated
1.7561.05±2xVIN0.01824-40 to +85µMAX/8$1.29 @1k
技术资料
质量和环境数据
相关产品
  • MAX864:双输出电荷泵,带有关断
订购型号
型号状况推荐替代产品封装温度RoHS/无铅
MAX865EUA停止供货MAX865EUA+µMAX,;8引脚;15.6mm²-40°C至+85°CRoHS/无铅:否
MAX865EUA+生产中µMAX,;8引脚;15.6mm²-40°C至+85°CRoHS/无铅:无铅
MAX865EUA+T生产中µMAX,;8引脚;15.6mm²-40°C至+85°CRoHS/无铅:无铅
MAX865EUA-T停止供货MAX865EUA+TµMAX,;8引脚;15.6mm²-40°C至+85°CRoHS/无铅:否
MAX865.pdf MAX865
MAX865.pdf MAX865
MAX865.pdf MAX865
Automatic Test Equipment on a Budget MAX367
How Dual-Supply Analog Switches Can Operate with a Single 3V or 5V Supply MAX4659
MAX865.pdf MAX865
MAX865.pdf MAX865