LTC4270AIUKG#PBF

Overview

The LTC4270AIUKG#PBF is a six-channel hot-swap controller designed for PCI Express applications. It operates within a supply voltage range of 2.7V to 14.4V and features an internal current limit with programmable slew rate control. The device supports automatic retry, fault timeout, and thermal limiting functions. It is housed in a 38-lead QFN package measuring 5x7mm and is rated for operation between -40°C and 85°C.

Feature Summary

• Six-channel architecture supporting independent hot-swap control
• Integrated programmable slew rate for controlled power-up
• Comprehensive protection including thermal limiting and fault timeout

Applications

• PCI Express expansion systems
• Industrial backplane management
• Telecommunications equipment power distribution

Procurement Notes

Verify the specific suffix against official Analog Devices documentation to confirm temperature grade and packaging details. Confirm availability status as distribution channels may vary. Ensure compatibility with system voltage requirements before procurement.

Selection Notes

Select this component for multi-lane PCI Express designs requiring individual channel monitoring. Evaluate the need for external sense resistors based on desired current accuracy. Consider the 38-QFN footprint for PCB layout constraints.

Part Context

This part belongs to the LTC4270 family of hot-swap controllers. It provides integrated power management for high-density server and communication boards. The device simplifies design by combining control logic with protection features typically requiring discrete components.

FAQ

What is the maximum supply voltage?

The device supports input voltages up to 14.4V.

Does it include thermal protection?

Yes, it features built-in thermal limiting to prevent overheating.