Datasheet4U Logo Datasheet4U.com

LTC4268-1 Datasheet High Power Pd

Manufacturer: Linear Technology (now Analog Devices)

General Description

The LTC®4268-1 is an integrated Powered Device (PD) controller and switching regulator intended for IEEE 802.3af and high power PoE applications up to 35W.

By including a precision dual current limit, the LTC4268-1 keeps inrush below IEEE 802.3af current limit levels to ensure interoperability success while enabling high power applications with a 750mA operational current limit.

The LTC4268-1 synchronous, current-mode, flyback controller generates multiple supply rails in a single conversion providing for the highest system efficiency while maintaining tight regulation across all outputs.

Key Features

  • n Robust 35W PD Front End n IEEE 802.3af Compliant n Rugged 750mA Power MOSFET With Precision Dual Level Current Limit n High Performance Synchronous Flyback Controller n IEEE Isolation Obtained Without an Opto-Isolator n Adjustable Frequency from 50kHz to 250kHz n Tight Multi-Output Regulation With Load Compensation n Onboard 25k Signature Resistor n Programmable Classification Current to 75mA n Complete Thermal and Over-Current Protection n Available in Compact 32-Pin 7mm × 4mm DFN Package App.

LTC4268-1 Distributor & Price

Compare LTC4268-1 distributor prices and check real-time stock availability from major suppliers. Prices and inventory may vary by region and order quantity.

More Datasheets from Linear Technology (now Analog Devices)

Part Number Description
LTC4260 Positive High Voltage Hot Swap Controller
LTC4261 Negative Voltage Hot Swap Controllers
LTC4261-2 Negative Voltage Hot Swap Controllers
LTC4263 Single IEEE 802.3af Compliant PSE Controller
LTC4263-1 High Power Single PSE Controller
LTC4264 High Power PD Interface Controller
LTC4265 IEEE 802.3at High Power PD Interface Controller
LTC4266 Quad IEEE 802.3at Power over Ethernet Controller
LTC4266A Quad PoE/PoE+/LTPoE++ PSE Controller
LTC4266C Quad PoE/PoE+/LTPoE++ PSE Controller