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LM5070MTC-5.0 from NS,National Semiconductor

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LM5070MTC-5.0

Manufacturer: NS

Integrated Power Over Ethernet PD Interface and PWM Controller

Partnumber Manufacturer Quantity Availability
LM5070MTC-5.0,LM5070MTC50 NS 1021 In Stock

Description and Introduction

Integrated Power Over Ethernet PD Interface and PWM Controller The LM5070MTC-5.0 is a Power over Ethernet (PoE) interface controller manufactured by National Semiconductor (NS). Below are its specifications, descriptions, and features:

### **Specifications:**
- **Manufacturer:** National Semiconductor (NS)  
- **Part Number:** LM5070MTC-5.0  
- **Package:** TSSOP-16  
- **Operating Temperature Range:** -40°C to +85°C  
- **Input Voltage Range:** 0V to 80V  
- **Output Voltage:** 5.0V (fixed)  
- **Maximum Output Current:** 400mA  
- **Power Dissipation:** 1.5W  
- **Compliance:** IEEE 802.3af compliant  

### **Descriptions:**
The LM5070MTC-5.0 is a PoE interface controller designed for use in Powered Devices (PDs) in Ethernet networks. It integrates a PD interface and a DC-DC converter controller, providing a regulated 5.0V output. It supports detection, classification, and undervoltage lockout (UVLO) functions as per IEEE 802.3af standards.

### **Features:**
- **Integrated PD Interface:**  
  - IEEE 802.3af compliant detection and classification  
  - Programmable classification current  
  - Thermal shutdown protection  
- **DC-DC Controller:**  
  - Current-mode PWM controller  
  - Supports flyback and forward topologies  
  - Adjustable switching frequency (up to 500kHz)  
- **Protection Features:**  
  - Input undervoltage lockout (UVLO)  
  - Overcurrent protection  
  - Thermal shutdown  
- **Wide Input Voltage Range:** 0V to 80V  
- **Fixed 5.0V Output:** Suitable for low-power PD applications  

This information is based solely on the manufacturer's datasheet and technical documentation.

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