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LTC4266CUHF#PBF from LINEAR

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LTC4266CUHF#PBF

Manufacturer: LINEAR

Quad IEEE 802.3at Power Over Ethernet Controller

Partnumber Manufacturer Quantity Availability
LTC4266CUHF#PBF,LTC4266CUHFPBF LINEAR 1182 In Stock

Description and Introduction

Quad IEEE 802.3at Power Over Ethernet Controller The LTC4266CUHF#PBF is a Power over Ethernet (PoE) interface controller manufactured by Linear Technology (now part of Analog Devices). Below are its key specifications, descriptions, and features:

### **Specifications:**
- **Manufacturer:** LINEAR (Linear Technology)  
- **Part Number:** LTC4266CUHF#PBF  
- **Package:** 38-Lead QFN (5mm x 7mm)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Input Voltage Range:** Up to 57V  
- **Compliance:** IEEE 802.3af/at PoE Standards  
- **Power Classification:** Supports PD (Powered Device) classification  
- **Integrated Power MOSFETs:** Yes  

### **Descriptions:**
The LTC4266CUHF#PBF is a high-efficiency, IEEE 802.3af/at compliant PoE interface controller designed for Powered Devices (PDs). It integrates detection, classification, and a high-voltage power switch, simplifying PoE implementation in end applications.  

### **Features:**
- **IEEE 802.3af/at Compliant:** Fully supports PoE and PoE+ standards.  
- **Integrated 0.25Ω Power MOSFET:** Reduces external component count.  
- **Programmable Classification:** Supports up to Class 4 (PoE+).  
- **Wide Input Voltage Range:** Operates up to 57V.  
- **Thermal Protection:** Prevents overheating.  
- **Under-Voltage Lockout (UVLO):** Ensures safe operation.  
- **Low Quiescent Current:** Optimized for power efficiency.  
- **Compact QFN Package:** Space-saving 38-lead (5mm x 7mm) form factor.  

This device is commonly used in PoE-powered applications such as IP cameras, VoIP phones, wireless access points, and industrial IoT devices.  

(Note: Always refer to the official datasheet for detailed technical specifications.)

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