Overview of LT3518EUF#TRPBF

The LT3518EUF#TRPBF is a high-performance, adjustable frequency, monolithic switching regulator specifically designed for LED driver applications. Manufactured by Linear Technology, which is now part of Analog Devices, this integrated circuit provides a compact and efficient solution for controlling and powering LEDs in a variety of settings.

Key Features

• Wide Input Voltage Range: The device can operate from an input voltage range of 3V to 30V, making it versatile for use in various applications, from automotive to industrial lighting.
• Internal 2.3A Switch: It includes an internal 2.3A, 45V switch, which allows for the powering of a string of up to ten white LEDs in series, ensuring consistent brightness and performance.
• Adjustable Frequency: The switching frequency is adjustable from 250kHz to 2.5MHz, which enables designers to optimize the regulator for efficiency or component size.
• True Color PWM™ Dimming: The LT3518EUF#TRPBF offers True Color PWM dimming, delivering constant LED color with deep dimming capability.
• Robust Protection Features: The device includes open LED and short-circuit protection, ensuring reliable operation under abnormal conditions.

Applications

With its robust feature set, the LT3518EUF#TRPBF is ideal for driving LEDs in a wide range of applications, including:

• Automotive and avionic lighting
• Display backlighting
• Signage and decorative LED lighting
• General-purpose constant current sources

Package and Availability

The LT3518EUF#TRPBF is offered in a compact 16-lead QFN package with a thermal pad for enhanced thermal performance. The part is available in tape and reel packaging, denoted by the '#TRPBF' suffix, which is suitable for automated, high-volume production environments.

Conclusion

The LT3518EUF#TRPBF from Linear Technology is a highly adaptable and efficient solution for LED driving applications, providing designers with a reliable and versatile component that simplifies the design of LED lighting systems.