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MAX864：双输出电荷泵，带有关断

提供双极性输出

The MAX864 CMOS, charge-pump, DC-DC voltage converter produces a positive and a negative output 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 +1.75V to +6.0V. The internal oscillator can be pin-programmed from 7kHz to 185kHz, allowing the quiescent current, capacitor size, and switching frequency to be optimized. The 55Ω output impedance permits useful output currents up to 20mA. The MAX864 also has a 1µA logic-controlled shutdown. The MAX864 comes in a 16-pin QSOP package that uses the same board area as a standard 8-pin SOIC. For more space-sensitive applications, the MAX865 is available in an 8-pin µMAX® package, which uses half the board area of the MAX864.

关键特性 Requires Only Four Capacitors Dual Outputs (Positive and Negative) Low Input Voltages: +1.75V to +6.0V 1µA Logic-Controlled Shutdown Selectable Frequencies Allow Optimization of Capacitor Size and Supply Current

MAX864：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 2至4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

关键参数

质量和环境数据

• MAX864.pdf

相关产品

• MAX865：紧凑的、双输出电荷泵

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