MAX861是Maxim美信半导体公司的一款电荷泵产品，MAX861是50mA、频率可选的开关电容电压变换器，本站介绍了MAX861的封装应用图解、特点和优点、功能等，并给出了与MAX861相关的Maxim元器件型号供参考。
MAX861 - 50mA、频率可选的开关电容电压变换器 - 电荷泵 - 无电感反向器/正电源倍压电路，开关频率高达250kHz - 美信半导体
The MAX860/MAX861 charge-pump voltage converters invert input voltages ranging from +1.5V to +5.5V, or double input voltages ranging from +2.5V to +5.5V. Because of their high switching frequencies, these devices use only two small, low-cost capacitors. Their 50mA output makes switching regulators unnecessary, eliminating inductors and their associated cost, size, and EMI. Greater than 90% efficiency over most of the load-current range, combined with a typical operating current of only 200µA (MAX860), provides ideal performance for both battery-powered and board-level voltage-conversion applications.
A frequency-control (FC) pin provides three switching-frequencies to optimize capacitor size and quiescent current and to prevent interference with sensitive circuitry. Each device has a unique set of three available frequencies. A shutdown (active-low SHDN) pin reduces current consumption to less than 1µA. The MAX860/MAX861 are suitable for use in applications where the ICL7660 and MAX660's switching frequencies are too low. The MAX860/MAX861 are available in 8-pin µMAX® and SO packages.
