Analog Devices Inc. LTC3851AIUD-1#PBF Overview

The LTC3851AIUD-1#PBF is a high-performance synchronous step-down switching regulator controller from Analog Devices Inc., a leader in high-performance analog technology. This advanced controller is designed to drive an all N-channel power MOSFET stage, capable of delivering output currents up to several tens of amperes with excellent efficiency. It's a versatile solution for various applications, including distributed power systems, telecommunications, industrial systems, and more.

Key Features

• Wide Input Voltage Range: The LTC3851AIUD-1#PBF operates over a 4V to 38V input voltage range, making it suitable for a variety of supply sources, from single-cell Li-Ion batteries to fixed 12V or 24V rails.
• Adjustable Operating Frequency: With an operating frequency that can be set from 250kHz to 2.25MHz via an external resistor or synchronized to an external clock, this controller provides flexibility in optimizing the size of external components and performance.
• Robust Output Voltage Regulation: The output voltage can be precisely regulated to as low as 0.8V with an accuracy of ±1% over a temperature range of -40°C to 125°C, ensuring reliable performance in a wide range of environments.
• Enhanced Performance: The LTC3851AIUD-1#PBF features a phase-lockable frequency (75kHz to 850kHz), optimal for noise-sensitive applications. It also includes a tracking soft-start capability to provide a controlled startup.
• Protection Features: It is equipped with a range of protection features, such as overvoltage protection, undervoltage lockout, and overcurrent protection, enhancing the safety and reliability of the system.

Package and Availability

The LTC3851AIUD-1#PBF comes in a compact QFN-20 package, which is well-suited for space-constrained applications. Its lead-free and RoHS-compliant design aligns with environmental regulations, promoting sustainability in electronic designs.

Applications

• Point-of-Load Regulation
• Telecommunications Infrastructure
• Datacom and Storage Systems
• Industrial Power Supplies
• Aftermarket Automotive Supplies

With its robust feature set and flexible design, the LTC3851AIUD-1#PBF from Analog Devices Inc. is an ideal choice for engineers looking for a high-efficiency, adaptable power management solution.