LTC4267

RECOMMENDED FOR NEW DESIGNS

Power over Ethernet IEEE 802.3af PD Interface with Integrated Switching Regulator

Data Sheet Product Selection Table
Part Models
8
1ku List Price
Starting From $2.17
Viewing:

Part Details

  • Complete Power Interface Port for IEEE 802®.3af Powered Device (PD)
  • Onboard 100V, 400mA UVLO Switch
  • Precision Dual Level Inrush Current Limit
  • Integrated Current Mode Switching Regulator
  • Onboard 25kΩ Signature Resistor with Disable
  • Programmable Classification Current (Class 0-4)
  • Thermal Overload Protection
  • Power Good Signal
  • Integrated Error Amplifier and Voltage Reference
  • Low Profile 16-Pin SSOP and 3mm × 5mm DFN Packages
LTC4267
Power over Ethernet IEEE 802.3af PD Interface with Integrated Switching Regulator
Class 2 PD with 3.3V Isolated Power Supply Product Package 1 Product Package 2
Add to myAnalog

Add product to the Products section of myAnalog (to receive notifications), to an existing project or to a new project.

Create New Project
Ask a Question

Documentation

Data Sheet 1

Reliability Data 3

User Guide 4

Design Note 1

Technical Articles 1

Data Sheet

This is the most up-to-date revision of the Data Sheet.

Learn More
Add to myAnalog

Add product to the Products section of myAnalog (to receive notifications), to an existing project or to a new project.

Create New Project

Hardware Ecosystem

Parts Product Life Cycle Description
PoE Powered Device (PD) 1
LT4275
RECOMMENDED FOR NEW DESIGNS LTPoE++/PoE+/PoE PD Controller
Power Monitors 1
LT2940
PRODUCTION Power and Current Monitor
Modal heading
Add to myAnalog

Add product to the Products section of myAnalog (to receive notifications), to an existing project or to a new project.

Create New Project

Tools & Simulations

LTspice 1

Models for the following parts are available in LTspice:

  • LTC4267
  • LTC4267-1
  • LTC4267-3
LTspice

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

Evaluation Kits

eval board
schematic 1
schematic 2
schematic 3
schematic 4
schematic 5
schematic 6
DC1145B

LTC4267CDHC | PoE Powered Device with 12V Isolated Auxiliary, VOUT = 12V @ 0.9A

Buy Now View Details

Product Details

Demonstration circuit 1145B, featuring the LTC4267, provides a complete IEEE 802.3af Powered Device (PD) interface and isolated 12V at 0.9A power supply solution for use in Power over Ethernet (PoE) applications. An optional connection is included for a 12V auxiliary supply on the secondary side that disables PoE when present.

eval board
schematic 7
DC859A

LTC4267IDHC Triple-Output PD for PoE

Buy Now View Details

Product Details

DC859A: Demo Board for the LTC4267 Power over Ethernet IEEE 802.3af PD Interface with Integrated Switching Regulator.

eval board
schematic 8
DC917A

LTC4267| PoE to 3.3V @ 2.6A Isolated

Buy Now View Details

Product Details

DC917A: Demo Board for the LTC4267 Power over Ethernet IEEE 802.3af PD Interface with Integrated Switching Regulator.

eval board
schematic 9
DC804B-A

LTC4267CDHC | RJ-45 Ethernet Output, VOUT = 3.3V @ 1.0A

Buy Now View Details

Product Details

Demonstration circuit 804 is a Power over Ethernet PD Interface with Integrated Switching Regulator featuring the LTC4267. It provides a complete IEEE 802.3af power device (PD) interface and isolated 3.3V power supply solution for use in Power over Ethernet (PoE) applications.
DC1145B
LTC4267CDHC | PoE Powered Device with 12V Isolated Auxiliary, VOUT = 12V @ 0.9A
DC1145B Demo Board DC1145B Demo Board DC1145B Demo Board DC1145B Demo Board DC1145B Demo Board DC1145B - Schematic
DC859A
LTC4267IDHC Triple-Output PD for PoE
DC859A - Schematic
DC917A
LTC4267| PoE to 3.3V @ 2.6A Isolated
DC917A - Schematic
DC804B-A
LTC4267CDHC | RJ-45 Ethernet Output, VOUT = 3.3V @ 1.0A
DC804B

Latest Discussions

31 Weeks Ago
RE: LTC4267-3 does not start switching
2 Years Ago
RE: Differences Between LTC4267IGN, LTC4267IGN-3 and LTC4267CGN-3
View related discussion on EngineerZone®

Recently Viewed