The LTC4268CDKD-1#PBF is a highly integrated Power over Ethernet (PoE) interface controller designed and manufactured by Linear Technology, a brand within Analog Devices. This advanced component is specifically engineered to facilitate the delivery of power over Ethernet cabling to powered devices (PDs) in compliance with the IEEE 802.3af standard.

Key Features

• IEEE 802.3af Compliant: The device is designed to meet the stringent requirements of the IEEE 802.3af standard for PoE, ensuring compatibility with other compliant devices in the network.
• Integrated Switching Regulator: It features an onboard switching regulator that provides a highly efficient power conversion, which is essential for minimizing heat dissipation and maximizing reliability.
• Signature Resistor Detection: This controller includes a signature resistor detection feature, which allows Power Sourcing Equipment (PSE) to detect the presence of a compliant PD before delivering power.
• Programmable Classification: The LTC4268CDKD-1#PBF supports programmable class detection, enabling the device to inform the PSE of its power classification for proper power budgeting.
• High Power Applications: It is capable of applications that require up to 13W of output power, making it suitable for a wide range of PDs, including IP phones, wireless access points, and security cameras.
• Thermal Protection: The device incorporates thermal protection features to safeguard against overheating, ensuring stable operation under various conditions.

Applications

The LTC4268CDKD-1#PBF is ideal for a variety of applications that require remote power delivery over Ethernet cables. These include enterprise and industrial networking equipment, VoIP phones, wireless network access points, IP security cameras, and networked appliances.

Package and Quality

Encased in a DFN package, the LTC4268CDKD-1#PBF offers a compact footprint for space-constrained applications. Linear Technology ensures high-quality standards, and this product is available in lead-free packaging, adhering to environmental regulations and facilitating RoHS compliance.