The LTC4267CGN-3#TRPBF is a sophisticated integrated circuit from Linear Technology, designed to facilitate Power over Ethernet (PoE) applications in accordance with the IEEE 802.3af standard. This component is particularly tailored for powered devices (PD) that require a reliable and efficient power solution over Ethernet cabling.

Key Features

• IEEE 802.3af Compliant: The LTC4267CGN-3#TRPBF fully adheres to the stringent specifications of the IEEE 802.3af standard, ensuring compatibility with other compliant devices in a PoE system.
• Integrated Switching Regulator: This product comes with an onboard switching regulator that provides a highly efficient means of converting the power received over Ethernet into the required voltage for the powered device.
• Signature Resistor Detection: It includes a signature resistor detection feature, which is a critical component of the PoE handshake, signaling to the power sourcing equipment (PSE) that the device is PoE-capable.
• Programmable Classification: The LTC4267CGN-3#TRPBF supports programmable class assignments, allowing the powered device to inform the PSE of its power classification level during the negotiation phase.
• Thermal Protection: Enhanced thermal protection mechanisms are in place to prevent damage from overheating, ensuring long-term reliability and safety of the device.
• Compact Form Factor: Housed in a space-saving 16-lead SSOP package, this product is well-suited for designs where board space is at a premium.

Applications

The LTC4267CGN-3#TRPBF is ideal for a variety of applications that require remote power delivery. Common use cases include:

• VoIP Phones
• Wireless Network Access Points
• Security Cameras
• Network Routers and Switches

Conclusion

Overall, the LTC4267CGN-3#TRPBF from Linear Technology is a powerful solution for implementing PoE in a wide range of electronic devices. Its compliance with the IEEE 802.3af standard, integrated functionalities, and compact design make it an excellent choice for developers looking to streamline their PoE deployments.