The LTC1261LCS8 is a versatile switched capacitor voltage converter produced by Linear Technology, designed to provide a convenient and efficient solution for generating a negative voltage from a positive input voltage. This integrated circuit (IC) is particularly suited for applications that require a small, easy-to-use, and reliable inverting power supply.

Key Features:

• Wide Input Voltage Range: The LTC1261LCS8 operates over a broad input voltage range, typically from 4.5V to 5.5V, making it suitable for a variety of applications that use standard logic levels.
• High Output Current: This IC can deliver a significant output current, up to 45mA, which is sufficient for powering small to medium-sized circuits that require a negative supply.
• Low Quiescent Current: With its low quiescent current, the LTC1261LCS8 is an energy-efficient choice for battery-powered devices, ensuring minimal power wastage when the circuit is in idle mode.
• Adjustable Output Voltage: The output voltage can be adjusted by external capacitors, providing design flexibility for specific application requirements.
• Thermal Protection: Built-in thermal protection safeguards the IC from damage due to overheating, enhancing its reliability and longevity.
• Compact Package: The LTC1261LCS8 comes in an 8-pin narrow SOIC package, which is ideal for space-constrained applications.

Applications:

The LTC1261LCS8 is a practical solution for a wide range of applications, including but not limited to:

• Portable Instrumentation
• Battery-Powered Systems
• Negative Voltage Generators in Bipolar Op-Amp Circuits
• Memory Backup Supplies
• Interface Powered from a Single Positive Supply

Conclusion:

The LTC1261LCS8 from Linear Technology is a robust and efficient switched capacitor voltage converter that offers a simple and compact solution for generating negative voltages. Its low power consumption, adjustable output, and built-in thermal protection make it a reliable choice for designers looking to integrate a negative power supply into their systems without the need for an external inductor or multiple power sources.