GENERAL DESCRIPTION

The TC682 is a CMOS charge pump converter that provides an inverted doubled output from a single positive supply. An on-board 12kHz (typical) oscillator provides the clock and only 3 external capacitors are required for full circuit implementation.

Low output source impedance (typically 140Ω), provides output current up to 10mA. The TC682 features low quiescent current and high efficiency, making it the ideal choice for a wide variety of applications that require a negative voltage derived from a single positive supply (for example: generation of – 6V from a 3V lithium cell or – 10V generated from a +5V logic supply).

The minimum external parts count and small physical size of the TC682 make it useful in many medium-current, dual voltage analog power supplies

FEATURES

■ 99.9 Voltage Conversion Efficiency

■ 92 Power Conversion Efficiency

■ Wide Input Voltage Range ...............+2.4V to +5.5V

■ Only 3 External Capacitors Required

■ 185µA Supply Current

■ Space-Saving 8-Pin SOIC and 8-Pin Plastic DIP Packages

APPLICATIONS

■ – 10V from +5V Logic Supply

■ – 6V from a Single 3V Lithium Cell

■ Portable Handheld Instruments

■ Cellular Phones

■ LCD Display Bias Generator

■ Panel Meters

■ Operational Amplifier Power Supplies

TC682属于集成电路（IC） > 稳压器 - DC-DC 开关稳压器。微芯科技股份有限公司制造生产的TC682稳压器 - DC-DC 开关稳压器DC-DC 开关稳压器 PMIC（电源管理集成电路）产品族中的产品是元器件级设备，用于需要稳定 DC 输入电压和/或将其转换为不同幅度的输出电压的应用。这些器件与称为“控制器”PMIC 的类似产品的区别在于集成了主开关元件，设备提供的电力会通过该元件。