The LTC4267CDHC-3#PBF is an advanced Power over Ethernet (PoE) interface controller that integrates a Powered Device (PD) interface and a current-mode switching regulator to deliver a comprehensive solution for applications requiring IEEE 802.3af compliance. Manufactured by Linear Technology, a leader in high-performance analog integrated circuits, this product is designed to simplify the implementation of PoE functionality in network devices such as IP cameras, wireless access points, and VoIP phones.

Key Features

• IEEE 802.3af Compliant: Designed to meet the stringent specifications of the IEEE 802.3af standard for Power over Ethernet, ensuring interoperability with other compliant devices.
• Integrated Switching Regulator: Features an onboard switching regulator that provides a high-efficiency power conversion, reducing the need for additional external components.
• Signature Resistor Detection: Includes an integrated signature resistor to communicate presence to PoE power sourcing equipment (PSE).
• Programmable Classification: Allows for programmable class assignment for power level negotiation with PSE devices.
• Over-Temperature Protection: Comes with built-in over-temperature protection to safeguard the device under abnormal operating conditions.
• Compact Package: Available in a space-saving 16-lead DFN package, making it suitable for compact device designs.

Applications

The LTC4267CDHC-3#PBF is versatile and can be used in a variety of applications that require remote power delivery over Ethernet cables. Common applications include:

• IP Network Cameras
• Wireless Access Points
• VoIP Phones
• Remote Network Switches
• Industrial Controllers

Quality and Reliability

Linear Technology is known for its commitment to quality and reliability, and the LTC4267CDHC-3#PBF is no exception. It is designed to perform in demanding environments and is backed by rigorous testing to ensure it meets industry standards for performance and longevity.