The LTC3776EUF#TRPBF is a high-performance, dual-output synchronous step-down switching regulator controller designed by Linear Technology, now part of Analog Devices. This advanced controller is tailored for precision voltage regulation in a variety of applications, including telecommunications, data communication systems, and industrial equipment.

Key Features

• Wide Input Voltage Range: The LTC3776 operates over a 4.5V to 38V input voltage range, making it suitable for a broad spectrum of power sources, from standard 12V or 24V rails to more fluctuating sources.
• High-Efficiency Operation: Its synchronous operation enables efficiency up to 95%, minimizing heat generation and allowing for more compact system designs.
• Dual Output Channels: The device features two outputs that can be set to a fixed frequency between 250kHz and 780kHz or synchronized to an external clock.
• Phase-Lockable Frequency: The LTC3776 can lock to an external clock over a range of 250kHz to 780kHz for noise-sensitive applications requiring a clean and stable power supply.
• Current Mode Operation: This mode provides excellent line and load transient response, ensuring stable operation under varying conditions.
• Integrated MOSFET Drivers: The device includes powerful 1.1Ω on-chip MOSFET gate drivers, designed to drive large power MOSFETs for high current applications.

Protection Features

• Overcurrent Protection: The LTC3776 features cycle-by-cycle overcurrent protection, safeguarding the device and the load from damage due to excessive currents.
• Overvoltage Protection: It also provides overvoltage protection, which prevents the output voltage from exceeding a safe level.
• Adjustable Soft-Start: The adjustable soft-start limits the inrush current at startup, enhancing system reliability.

Package and Environmental

The LTC3776EUF#TRPBF is offered in a compact 24-lead QFN package, which is RoHS compliant and designed for space-constrained environments. Its operating temperature range is from -40°C to 125°C, ensuring performance in harsh conditions.

Applications

This versatile controller is ideal for dual power supply systems, distributed power architectures, and point-of-load applications where precision voltage regulation and high efficiency are paramount.