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LTC4267IGN-1#TRPBF from LINEAR

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LTC4267IGN-1#TRPBF

Manufacturer: LINEAR

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

Partnumber Manufacturer Quantity Availability
LTC4267IGN-1#TRPBF,LTC4267IGN1TRPBF LINEAR 2158 In Stock

Description and Introduction

Power over Ethernet IEEE 802.3af PD Interface with Integrated Switching Regulator The LTC4267IGN-1#TRPBF is a Power over Ethernet (PoE) interface IC manufactured by Linear Technology (now part of Analog Devices).  

### **Specifications:**  
- **Manufacturer:** LINEAR (Analog Devices)  
- **Part Number:** LTC4267IGN-1#TRPBF  
- **Package:** 24-Lead SSOP  
- **Operating Temperature Range:** -40°C to +85°C  
- **Input Voltage Range:** 36V to 57V (IEEE 802.3af/at compliant)  
- **Output Voltage:** Programmable (supports PD classification)  
- **Power Dissipation:** Up to 25.5W (802.3at Type 1) or 13W (802.3af)  
- **Compliance:** IEEE 802.3af/at PoE standards  
- **Features:**  
  - Integrated detection and classification  
  - Programmable inrush current limiting  
  - Thermal shutdown protection  
  - Under-voltage lockout (UVLO)  

### **Descriptions:**  
The LTC4267IGN-1#TRPBF is a PoE Powered Device (PD) controller designed for IEEE 802.3af/at compliant applications. It provides a complete interface for PDs requiring power from Ethernet cables, integrating detection, classification, and power management functions.  

### **Features:**  
- **Detection & Classification:** Fully compliant with IEEE 802.3af/at standards.  
- **Inrush Current Control:** Programmable to minimize surge current.  
- **Thermal Protection:** Prevents overheating.  
- **Wide Input Range:** Supports standard PoE voltage inputs.  
- **Compact Package:** 24-lead SSOP for space-constrained designs.  

This IC is commonly used in networked devices such as IP cameras, VoIP phones, and wireless access points that require PoE power delivery.

Application Scenarios & Design Considerations

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

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