The LT1171CQ#TR is a versatile and robust switching regulator from Linear Technology, designed to offer high efficiency and reliable performance for a wide range of applications. This component is part of the LT1171 series, which are 100kHz DC/DC converters capable of driving a 2.5A load with excellent line and load regulation.

Key Features

• Versatile Input Voltage: The LT1171 can operate with an input voltage range from 3V to 60V, making it suitable for applications with varying power supplies, including automotive and industrial systems.
• High-Efficiency Operation: With a switching frequency of 100kHz, the LT1171CQ#TR allows for a balanced trade-off between efficiency and component size, enabling the use of smaller, cost-effective inductors and capacitors.
• Adjustable Switching Frequency: The switching frequency can be synchronized to an external clock, giving designers flexibility in managing electromagnetic interference (EMI) and optimizing the regulator for specific applications.
• High Output Power: The device is capable of delivering up to 2.5A, making it suitable for high-power applications.
• Thermal Protection: It includes thermal shutdown to protect the device under extreme operating conditions.
• Flexible Configuration: The LT1171CQ#TR supports various topologies such as boost, flyback, and forward converter, providing design flexibility.
• Low Shutdown Current: The regulator features a low shutdown current of 50µA, which is beneficial for power-sensitive designs.

Applications

The LT1171CQ#TR is ideal for a range of applications, including:

• Telecommunications
• Automotive Power Systems
• Portable Computers
• Industrial Power Supplies
• Battery-Operated Devices

Package Information

This component is available in a 5-lead TO-220 package, designated as CQ, and is also offered in tape and reel form with the #TR suffix for use in automated manufacturing environments.

Conclusion

The Linear Technology LT1171CQ#TR switching regulator is a powerful solution for designers looking to improve power efficiency and reliability in their electronic systems. Its broad input voltage range, high output current capability, and flexible design options make it a valuable addition to a wide array of power management applications.