Linear Technology LTC3867IUF#PBF High Performance Step-Down Controller

The LTC3867IUF#PBF is a high-performance, dual-phase synchronous step-down switching regulator controller from Linear Technology that offers precision voltage regulation along with a comprehensive set of features for superior performance in demanding applications. This advanced controller is designed for use in point-of-load applications where efficiency, accuracy, and reliability are critical.

Key Features:

• Wide Input Voltage Range: The LTC3867IUF#PBF can operate with an input voltage range from 4.5V to 38V, making it versatile for a wide array of power supply designs.
• Dual-Phase Operation: Its dual-phase operation not only provides better output voltage regulation but also helps in reducing the size of the output filter components, thereby saving board space and cost.
• Adjustable Operating Frequency: The operating frequency is adjustable from 250kHz to 770kHz, which can also be synchronized to an external clock, providing flexibility in optimizing the trade-off between efficiency and component size.
• Low Shutdown IQ: It features a very low shutdown quiescent current of only 7µA, which is ideal for battery-powered systems where power conservation is paramount.
• Current Mode Operation: The controller operates in current mode for fast transient response and excellent loop stability.
• Robust Protection Features: It includes overvoltage protection, undervoltage lockout, overcurrent protection, and thermal shutdown for enhanced system reliability.

Applications:

With its robust set of features and capabilities, the LTC3867IUF#PBF is well-suited for a variety of applications, including:

• Distributed Power Systems
• Telecommunications and Networking Equipment
• Industrial and Automotive Supplies
• High-Density Power Modules

Package and Reliability:

The LTC3867IUF#PBF is offered in a compact 24-lead QFN package, which is designed to minimize footprint and allow for efficient heat dissipation. Its operating temperature range of -40°C to 125°C ensures reliable performance in harsh environments, making it a dependable choice for critical system applications.

Overall, the LTC3867IUF#PBF from Linear Technology stands out as a high-quality, versatile controller that meets the stringent requirements of modern power supply designs.