LMC7660IMX/NOPB

The LMC7660IMX/NOPB is a precision voltage converter integrated circuit (IC) manufactured by Texas Instruments. It is designed to provide a simple and efficient way to generate negative voltages from a positive supply voltage, making it particularly useful in applications where a negative voltage is required but only a positive supply is available.

Key Features:

1. Voltage Conversion: The LMC7660 can convert a positive input voltage (typically in the range of +1.5V to +12V) into a corresponding negative output voltage. The output voltage is approximately equal in magnitude to the input voltage but with the opposite polarity.

2. Output Current: The device can deliver output currents up to 20 mA, making it suitable for driving small loads in various applications.

3. Low Quiescent Current: The LMC7660 is designed to operate with low quiescent current, which enhances its efficiency and makes it suitable for battery-powered applications.

4. High Efficiency: The IC employs a charge pump architecture, which allows for efficient voltage conversion with minimal power loss.

5. Wide Operating Temperature Range: The LMC7660 is rated for operation over a wide temperature range, typically from -40°C to +85°C, ensuring reliable performance in various environmental conditions.

6. Pin Configuration: The LMC7660 is available in a standard 8-pin SOIC (Small Outline Integrated Circuit) package, which is compact and suitable for surface-mount applications.

7. Applications: This IC is commonly used in applications such as:

   • Generating negative supply voltages for operational amplifiers and analog circuits.
   • Powering sensors and other devices that require a negative voltage.
   • Signal processing applications where dual supply voltages are needed.

8. Protection Features: The LMC7660 includes internal protection features to safeguard against over-voltage and reverse polarity conditions, enhancing the reliability of the circuit.

Electrical Characteristics:

• Input Voltage Range: +1.5V to +12V
• Output Voltage: Approximately -Vout (equal to the input voltage in magnitude)
• Output Current: Up to 20 mA
• Efficiency: High efficiency due to the charge pump design
• Quiescent Current: Low, typically in the microamp range

Conclusion:

The LMC7660IMX/NOPB from Texas Instruments is a versatile and efficient voltage converter that simplifies the generation of negative voltages in electronic circuits. Its compact size, low power consumption, and reliable performance make it an excellent choice for a wide range of applications in both consumer and industrial electronics.