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LM2672LDX-3.3 from NS,National Semiconductor

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LM2672LDX-3.3

Manufacturer: NS

SIMPLE SWITCHER Power Converter High Efficiency 1A Step-Down Voltage Regulator with Features

Partnumber Manufacturer Quantity Availability
LM2672LDX-3.3,LM2672LDX33 NS 2337 In Stock

Description and Introduction

SIMPLE SWITCHER Power Converter High Efficiency 1A Step-Down Voltage Regulator with Features The LM2672LDX-3.3 is a step-down voltage regulator manufactured by National Semiconductor (NS). Below are its specifications, descriptions, and features based on Ic-phoenix technical data files:

### **Specifications:**
- **Output Voltage:** 3.3V (fixed)  
- **Input Voltage Range:** 8V to 40V  
- **Output Current:** Up to 1A  
- **Switching Frequency:** 260 kHz (typical)  
- **Efficiency:** Up to 90%  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package Type:** TO-263 (D2PAK)  
- **Regulator Type:** Buck (Step-Down)  

### **Descriptions:**
The LM2672LDX-3.3 is a monolithic integrated circuit that provides all necessary functions for a step-down (buck) switching regulator. It is designed for high efficiency and requires minimal external components. The fixed 3.3V output makes it suitable for powering low-voltage digital circuits from higher input voltage sources.

### **Features:**
- **Simple and Easy to Design:** Requires only 5 external components.  
- **High Efficiency:** Up to 90% efficiency reduces power dissipation.  
- **Internal Soft-Start:** Limits inrush current during startup.  
- **Thermal Shutdown Protection:** Prevents damage due to overheating.  
- **Current Limiting:** Protects against output short circuits.  
- **Low Power Standby Mode:** Shutdown current typically 50 µA.  
- **Wide Input Voltage Range:** 8V to 40V operation.  

This regulator is commonly used in automotive, industrial, and consumer electronics applications where efficient step-down voltage conversion is required.

Application Scenarios & Design Considerations

SIMPLE SWITCHER Power Converter High Efficiency 1A Step-Down Voltage Regulator with Features

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