TC682

Features:

99.9% Voltage Conversion Efficiency
92% Power Conversion Efficiency
Wide Input Voltage Range ...............+2.4V to +5.5V
Only 3 External Capacitors Required
185mA Supply Current
Space-Saving 8-Pin SOIC and 8-Pin Plastic DIP Packages




Application

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




Pinout






Specifications

Parameter Name	Value
Typical Active Output Current (mA)	10
Output Voltage (V)	Vout = -2Vin
Typical Quiescent Current (A)	185
Input Voltage Range (V)	2.4 to 5.5
Operating Temp. Range (°C)	-40 to 85
Device Description	Inverting or Doubling

VIN ......................................................................... +5.8V
VIN dV/dT ........................................................... 1V/msec
VOUT ................................................................... 11.6V
VOUT Short-Circuit Duration .......................... Continuous
Power Dissipation (TA £ 70°C)
Plastic DIP ........................................................... 730mW
SOIC .....................................................................470mW
Storage Temperature Range ............  65°C to +150°C
Lead Temperature (Soldering, 10 sec) ................ +300°C

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 140Ohms), 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.