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LM2679SX-12/NOPB from NS,National Semiconductor

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LM2679SX-12/NOPB

Manufacturer: NS

SIMPLE SWITCHER 5A Step-Down Voltage Regulator with Adjustable Current Limit 7-DDPAK/TO-263 -40 to 125

Partnumber Manufacturer Quantity Availability
LM2679SX-12/NOPB,LM2679SX12NOPB NS 490 In Stock

Description and Introduction

SIMPLE SWITCHER 5A Step-Down Voltage Regulator with Adjustable Current Limit 7-DDPAK/TO-263 -40 to 125 The LM2679SX-12/NOPB is a switching voltage regulator manufactured by Texas Instruments (formerly National Semiconductor, NS).  

### **Specifications:**  
- **Output Voltage:** Fixed 12V  
- **Output Current:** Up to 3A  
- **Input Voltage Range:** 8V to 40V  
- **Switching Frequency:** 260 kHz  
- **Efficiency:** Up to 92%  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** TO-263-7 (DDPAK/TO-263)  
- **Regulation Type:** Buck (Step-Down) Converter  
- **Protection Features:** Thermal shutdown, current limit  

### **Descriptions:**  
The LM2679SX-12/NOPB is a monolithic high-efficiency switching regulator designed for step-down (buck) applications. It integrates a 3A switch, a fixed-frequency oscillator, and control circuitry to provide a stable 12V output from a wide input voltage range.  

### **Features:**  
- Simple and easy-to-use design with minimal external components  
- High efficiency (up to 92%)  
- Internal soft-start reduces inrush current  
- Thermal shutdown and current limit protection  
- Fixed 260 kHz switching frequency for reduced noise  
- Available in a surface-mount TO-263 package  

This regulator is commonly used in power supply applications for industrial, automotive, and consumer electronics.

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