Product Overview: LTC1421CG by Linear Technology

The LTC1421CG is a sophisticated, hot-swap controller integrated circuit (IC) designed by Linear Technology to provide a secure and efficient solution for inserting and removing boards from a live backplane. This component is specifically tailored for systems with a supply voltage range of 4.5V to 18V, making it versatile for a variety of applications, including telecom, datacom, and other electronic systems that require hot-swapping capabilities.

Key Features

• Adjustable Supply Voltage Range: The LTC1421CG operates efficiently across a wide range of supply voltages, from 4.5V to 18V, accommodating various system requirements.
• Electronic Circuit Breaker: It includes an electronic circuit breaker function to protect the system from overcurrent conditions, enhancing the reliability and safety of the application.
• Adjustable Overcurrent Timeout: Users can set the overcurrent timeout duration, allowing for flexibility in managing different load conditions and system tolerances.
• Under-Voltage Lockout (UVLO): The under-voltage lockout feature ensures that the IC remains off until the supply voltage reaches a safe operating level, protecting both the board and the backplane.
• Gate Drive for External N-Channel MOSFET: The LTC1421CG provides gate drive voltage for an external N-Channel MOSFET, enabling efficient power management and reducing on-resistance.
• Power Good Output: A "power good" output signal is provided to indicate when the output voltage is within a specified range, ensuring proper system function before enabling the load.

Applications

The LTC1421CG is suitable for a broad range of hot-swap applications, including:

• Server and Storage Systems
• Network Switches and Routers
• Industrial Control Systems
• High-Availability Telecom Equipment

Package and Quality

The LTC1421CG comes in a 16-pin narrow SSOP package, offering a compact footprint for space-constrained applications. Linear Technology ensures high-quality standards, and the LTC1421CG is no exception, providing reliable performance in critical hot-swap scenarios.