LTC4270BIUKG

Overview

The LTC4270BIUKG is a 12-channel Power Sourcing Equipment (PSE) controller designed for IEEE 802.3at Type 1 and Type 2 applications. It operates within an ambient temperature range of -40°C to 85°C and utilizes a 52-WFQFN exposed pad surface-mount package. This component supports PoE+ standards, enabling efficient power management for multi-port Ethernet infrastructure.

Feature Summary

• Integrates twelve independent PSE channels for high-density port configurations
• Supports IEEE 802.3at Type 1 and Type 2 classification standards
• Enables chipsets with electrical isolation to reduce bill of materials costs

Applications

• High-port-count PoE+ network switches
• Enterprise Ethernet infrastructure equipment
• Multi-port power sourcing equipment design

Procurement Notes

Verify the specific suffix against official Analog Devices documentation to confirm pinout and thermal characteristics. Ensure compatibility with required isolation architectures. Confirm that the 52-WFQFN package matches your PCB footprint constraints before finalizing procurement decisions.

Selection Notes

Select this component when designing systems requiring twelve independent PoE ports compliant with Type 1 and Type 2 standards. Consider the 52-WFQFN package size for board space limitations. Evaluate the need for external isolation components if utilizing chipset configurations to optimize material costs.

Part Context

This part belongs to the LTC4270/LTC4271 family of PoE controllers. It serves as a central management unit for powering remote devices over Ethernet cables. The device simplifies design by integrating control logic for multiple ports into a single compact solution.

Replacement Considerations

Direct substitutes include other variants within the LTC4270 series, such as LTC4270AIUKG or LTC4270IS, depending on package and temperature requirements. Verify functional equivalence for all twelve channels.