Linear Technology's LTC4268CDKD-1: Power Over Ethernet (PoE) Interface Controller

The LTC4268CDKD-1 by Linear Technology is a cutting-edge Power over Ethernet (PoE) interface controller that integrates a high-efficiency, synchronous, forward converter with a signature resistor and classification current source, making it an ideal solution for power sourcing equipment (PSE) applications. Designed to support the IEEE 802.3af standard, this device provides a complete PoE interface, allowing for the delivery of up to 13W of power to remote devices over standard Ethernet cables.

Key Features:

• IEEE 802.3af Compliant: Ensures compatibility with other PoE devices and systems, promoting interoperability and standardization.
• Integrated Synchronous Forward Converter: Provides efficient power conversion, reducing heat generation and improving overall system reliability.
• Signature Resistor and Classification Current Source: Enables the LTC4268CDKD-1 to communicate with powered devices (PDs) to determine their power requirements and manage power allocation effectively.
• High Power Output: Capable of delivering up to 13W, making it suitable for a wide range of applications, including IP cameras, wireless access points, and VoIP phones.
• Advanced Protection Features: Includes overcurrent protection, thermal shutdown, and robust 100V MOSFETs to safeguard against electrical anomalies.

Applications:

• Enterprise Networking Equipment
• Industrial Automation
• IP Cameras
• Wireless Access Points
• VoIP Phones

The LTC4268CDKD-1 comes in a compact, thermally efficient DFN package, making it suitable for space-constrained applications. Its high level of integration simplifies design and accelerates time-to-market for PoE-enabled devices. Whether for new designs or upgrading existing systems, the LTC4268CDKD-1 from Linear Technology stands out as a robust and reliable choice for PSE implementations.

Note: It is important to consult the datasheet and reference designs when integrating the LTC4268CDKD-1 into your PoE solutions to ensure compliance with all operational specifications and safety standards.