LTC1144IS8 High Efficiency Switched-Capacitor Voltage Converter

The LTC1144IS8 is a versatile switched-capacitor voltage converter designed by Linear Technology, now part of Analog Devices. This integrated circuit is engineered to provide high-efficiency voltage conversion with a minimal number of external components, making it an ideal solution for a wide range of applications including battery-powered devices, portable equipment, and power supply design.

Key Features:

• High Efficiency: The LTC1144IS8 offers up to 95% efficiency, which is significantly higher than linear regulators, especially when stepping down from high input voltage to low output voltage.
• Versatile Voltage Conversion: It can perform voltage inversion (negative voltage), doubling (positive voltage), and fractional voltage conversion (fraction of the input voltage), providing flexibility in power supply design.
• Low Quiescent Current: With a low quiescent current of only 80µA, the LTC1144IS8 is optimized for battery-powered applications where power conservation is critical.
• Adjustable Frequency: The switching frequency can be set by an external clock or can run at a default frequency of 25kHz, allowing optimization for efficiency or for reduction of noise and interference.
• Soft Start Capability: This feature reduces inrush current during startup, which minimizes stress on the input power source and improves system reliability.
• No Inductors Required: The switched-capacitor design eliminates the need for inductors, which simplifies layout and can reduce electromagnetic interference (EMI).
• Compact Package: The LTC1144IS8 comes in a compact 8-lead SOIC package, which is suitable for space-constrained applications.

Applications:

• Portable Instrumentation
• Memory Backup Systems
• Energy Harvesting
• Telecommunications
• Industrial Control Systems
• Handheld Devices

Overall, the LTC1144IS8 is a high-performance solution for designers looking to implement efficient voltage conversion with minimal external components and board space. Its robust feature set ensures that it can be integrated into a variety of systems, delivering reliable performance and extending the lifetime of battery-operated devices.