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LTC4269CDKD-1#TRPBF from LT

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LTC4269CDKD-1#TRPBF

Manufacturer: LT

IEEE 802.3at High Power PD and No-Opto Flyback Controller with AUX Support

Partnumber Manufacturer Quantity Availability
LTC4269CDKD-1#TRPBF,LTC4269CDKD1TRPBF LT 238 In Stock

Description and Introduction

IEEE 802.3at High Power PD and No-Opto Flyback Controller with AUX Support The LTC4269CDKD-1#TRPBF is a Power over Ethernet (PoE) interface controller manufactured by Linear Technology (now part of Analog Devices).  

### **Specifications:**  
- **Manufacturer:** Linear Technology (LT)  
- **Part Number:** LTC4269CDKD-1#TRPBF  
- **Package:** 36-Lead WFDFN (5mm x 7mm)  
- **Operating Temperature Range:** 0°C to 70°C  
- **Input Voltage Range:** 36V to 57V (IEEE 802.3af/at compliant)  
- **Output Voltage:** Adjustable  
- **Compliance:** IEEE 802.3af/at PoE standard  
- **Features:**  
  - Integrated detection and classification  
  - Programmable current limit  
  - Supports both Type 1 (13W) and Type 2 (25.5W) PoE  
  - Thermal shutdown protection  
  - Under-voltage lockout (UVLO)  
  - Power good indicator  

### **Description:**  
The LTC4269CDKD-1#TRPBF is a PoE interface controller designed for Power Sourcing Equipment (PSE). It provides detection, classification, and power management for connected Powered Devices (PDs) in PoE applications.  

### **Features:**  
- **Detection & Classification:** Fully compliant with IEEE 802.3af/at standards.  
- **Programmable Current Limit:** Adjustable for different power levels.  
- **Thermal Protection:** Prevents overheating.  
- **Power Management:** Efficient power delivery with monitoring.  
- **Compact Package:** 36-lead WFDFN for space-constrained applications.  

This device is commonly used in network switches, routers, and other PoE-enabled infrastructure.

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