The LTC4260IUH#TRPBF is a sophisticated negative voltage hot swap controller designed by Linear Technology to enable safe board insertion and removal from a live backplane. This integrated circuit is particularly suitable for systems with a -48V supply, which is a standard in telecom and networking equipment.

Key Features:

• Hot Swap Control: The device allows a board to be safely inserted and removed from a live backplane by controlling the inrush current to prevent glitches on the power supply rail.
• Wide Operating Range: With an operating voltage range of -9V to -80V, the LTC4260IUH#TRPBF is versatile for various applications that require negative supply voltage.
• Adjustable Current Limit: The current limit threshold can be set with an external resistor, providing flexibility to protect against different levels of overcurrent conditions.
• Multi-Function Timer: An onboard timer provides programmable overcurrent auto-retry and circuit breaker functionality, enhancing the protection features of the device.
• Charge Pump: The internal charge pump drives an external N-channel MOSFET switch, eliminating the need for an additional positive voltage supply.
• Compact Package: The LTC4260IUH#TRPBF comes in a compact 5mm x 5mm QFN-32 package, saving valuable board space for dense circuit designs.

Applications:

• Telecommunications Equipment
• Networking Infrastructure
• Industrial Systems
• Server Backplanes
• Central Office Switching

The LTC4260IUH#TRPBF offers a comprehensive set of protection features, including under-voltage and over-voltage lockout, automatic retry after fault, power good status, and a fault indicator. These features make it an ideal choice for managing power in sensitive electronic systems that require high reliability and robustness.

Its tape and reel packaging (denoted by the #TRPBF suffix) facilitates automated manufacturing processes, making it suitable for high-volume production. With its combination of features and packaging, the LTC4260IUH#TRPBF is a powerful solution for hot swap applications in negative voltage environments.