The LTC1421CG-2.5 is a high-performance hot swap controller from Linear Technology designed to enable safe board insertion and removal from a live backplane. This integrated circuit (IC) is engineered to provide robust protection and precise control during hot-plugging events, ensuring the integrity of both the electronic system and the inserted card.

Key Features

• Voltage Range: The LTC1421CG-2.5 operates at a fixed voltage of 2.5V, making it ideal for low voltage applications requiring precise regulation and monitoring.
• Electronic Circuit Breaker: This device includes an electronic circuit breaker function that provides overcurrent protection by limiting the inrush current during hot-swap events.
• Adjustable Current Limit: Users can set the current limit threshold with an external resistor, allowing for customization to match specific application requirements.
• Power Good Output: The LTC1421CG-2.5 features a 'power good' output indicator, which signals when the output voltage is within regulation and the board is safe to operate.
• Controlled dV/dt Ramp: The IC controls the voltage ramp-up rate during insertion, minimizing the risk of system glitches or voltage spikes.
• Thermal Protection: It also includes over-temperature protection, shutting down the output if the die temperature exceeds safe operating limits.

Applications

The LTC1421CG-2.5 is versatile and well-suited for a variety of applications, including:

• RAID Systems
• Redundant Power Supplies
• Hot-Swap Power Management
• Network Routers and Switches
• Servers and Storage Systems

Quality and Reliability

Linear Technology's LTC1421CG-2.5 is built with a commitment to quality and reliability, featuring robust construction and adherence to stringent industry standards. This hot swap controller is an essential component for system designers looking to enhance the safety and durability of their high-availability systems.