The LTC4267CDHC#PBF is a sophisticated Power over Ethernet (PoE) interface controller from Linear Technology that integrates advanced features to facilitate the delivery of power over Ethernet cables. This product is designed to interface powered devices (PDs) with power sourcing equipment (PSE), allowing for a streamlined power solution in networked devices.

Key Features:

• IEEE 802.3af Compliant: The LTC4267CDHC#PBF is fully compliant with the IEEE 802.3af standard, ensuring interoperability with other compliant devices in a PoE system.
• Integrated Switching Regulator: This device features an integrated switching regulator to provide a high-efficiency power solution, reducing the need for external components and simplifying design.
• Signature Resistor Detection: It includes signature resistor detection, which is a requirement for PoE systems to ensure that power is only applied to appropriately connected devices.
• Programmable Classification: The controller allows for programmable classification signatures, enabling the powered device to communicate its power requirements to the power sourcing equipment.
• Thermal Protection: Built-in thermal protection safeguards the device from overheating, enhancing the reliability and longevity of the product.
• Compact Package: The LTC4267CDHC#PBF comes in a compact DHC package, making it suitable for space-constrained applications.

Applications:

• VoIP Phones
• Wireless Network Access Points
• Security Cameras
• Networked Appliances

The LTC4267CDHC#PBF is an ideal choice for designers looking to integrate PoE capabilities into their products with minimal effort and maximum efficiency. Its advanced feature set and compliance with the IEEE 802.3af standard make it a versatile and reliable solution for a wide range of PoE applications.