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LTC4267-3 Datasheet Power Over Ethernet Ieee 802.3af Pd Interface

Manufacturer: Linear Technology (now Analog Devices)

Overview: LTC4267-3 Power over Ethernet IEEE 802.3af PD Interface with Integrated Switching.

General Description

nn Complete Power Interface Port for IEEE 802®.3af Powered Device (PD) nn Onboard 100V, UVLO Switch nn Constant-Frequency 300kHz Operation nn Precision Dual Level Inrush Current Limit nn Integrated Current Mode Switching Regulator nn Onboard 25k Signature Resistor with Disable nn Programmable Classification Current (Class 0-4) nn Thermal Overload Protection nn Power Good Signal nn Integrated Error Amplifier and Voltage Reference nn Low Profile 16-Pin SSOP or DFN Packages Applications nn IP Phone Power Management nn Wireless Access Points nn Security Cameras nn Power over Ethernet L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and LTPoE++ is a trademark of Linear Technology Corporation.

All other trademarks are the property of their respective owners.

The LTC®4267-3 combines an IEEE 802.3af compliant Powered Device (PD) interface with a 300kHz current mode switching regulator, providing a complete power solution for PD applications.

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