LT LTC4267IGN-1#PBF

控制器（PD），DC/DC12.95 W802.3af（PoE）

Overview

The LTC4267IGN combines an IEEE 802.3af compliant Powered Device (PD) interface with a current mode switching regulator, providing a complete power solution for PD applications. The LTC4267IGN integrates the 25kΩ signature resistor, classification current source, thermal overload protection, signature disable and power good signal along with an undervoltage lockout optimized for use with the IEEE-required diode bridge. The precision dual level input current limit allows the LTC4267IGN to charge large load capacitors and interface with legacy PoE systems.

The LTC4267IGN is available in space saving, low profile 16-pin SSOP or DFN packages.

Features

Tube Package
Tube package
16 pin count

Surface Mount Mounting Type

Applications

There are a lot of Linear Technology/Analog Devices
LTC4267IGN-1#PBF Power Over Ethernet (PoE) Controllers applications.

• IEEE 802.3af Compliant PoE Powered Devices
• Non-Compliant, Application Specific Devices
• Higher Power Ethernet Powered Devices
• IP Phone Power Management
• Wireless Access Points
• Security Cameras
• Power over Ethernet
• PoE powered device appliances
• High power (>12.95 W) powered devices
• IEEE 802.3bt (Draft) Compliant Devices