The LTC3869EUFD#TRPBF is a high-performance, dual output synchronous step-down DC/DC controller designed by Linear Technology, now part of Analog Devices. This advanced controller is engineered to drive N-channel MOSFETs in a phase-locked, synchronous rectified topology, delivering precise voltage regulation with high efficiency. It is a versatile solution for a variety of applications, including distributed power systems, industrial supplies, and telecommunications equipment.

Key Features:

• Wide Input Voltage Range: The LTC3869EUFD#TRPBF operates with an input voltage range of 4.5V to 38V, making it suitable for a wide array of sources, including intermediate bus voltages and battery-powered applications.
• Dual Output Channels: It features two outputs that can be set to a voltage as low as 0.6V with a feedback voltage accuracy of ±1% over a -40°C to 125°C temperature range. This precision ensures reliable performance in critical applications.
• Phase-Lockable Frequency: The switching frequency is programmable and can be synchronized to an external clock from 250kHz to 770kHz, or set by an internal oscillator, which helps in managing electromagnetic interference (EMI) and optimizing component size.
• Current Mode Operation: The current mode operation provides excellent transient response and cycle-by-cycle current limiting for additional system protection.
• Integrated Features: It includes a differential amplifier for remote output voltage sensing, a powerful 1.1Ω onboard gate driver, and an output voltage tracking capability for sequencing multiple power supplies.
• Robust Protection: The device offers overvoltage, undervoltage, and overcurrent protection, ensuring the safety and reliability of the power system under various conditions.

Package and Availability:

The LTC3869EUFD#TRPBF comes in a 28-lead QFN package with a thermal pad for enhanced thermal performance. It is available in tape and reel packaging, denoted by the '#TRPBF' suffix, which facilitates automated manufacturing processes.

Applications:

• Telecommunications Infrastructure
• Industrial Systems
• Networking Equipment
• Distributed Power Architectures
• Automotive Power Systems