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LM2674-M3.3 from NS,National Semiconductor

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LM2674-M3.3

Manufacturer: NS

SIMPLE SWITCHER Power Converter High Efficiency 500mA Step-Down Voltage Regulator

Partnumber Manufacturer Quantity Availability
LM2674-M3.3,LM2674M33 NS 9 In Stock

Description and Introduction

SIMPLE SWITCHER Power Converter High Efficiency 500mA Step-Down Voltage Regulator The LM2674-M3.3 is a step-down voltage regulator manufactured by National Semiconductor (NS). Below are its specifications, descriptions, and features:

### **Specifications:**
- **Output Voltage:** 3.3V (fixed)  
- **Input Voltage Range:** 8V to 40V  
- **Output Current:** Up to 500mA  
- **Switching Frequency:** 260 kHz (typical)  
- **Efficiency:** Up to 90%  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** TO-263 (D2PAK)  
- **Regulation Type:** Switching Regulator  

### **Descriptions:**
The LM2674-M3.3 is a monolithic integrated circuit that provides all active functions for a step-down (buck) switching regulator. It is designed to drive a 500mA load with excellent line and load regulation. The device includes a fixed-frequency oscillator, a high-efficiency switch, and internal compensation for stability.

### **Features:**
- **Simple and Easy to Use:** Requires minimal external components.  
- **Internal Soft-Start:** Reduces inrush current during startup.  
- **Thermal Shutdown Protection:** Prevents damage from overheating.  
- **Current Limit Protection:** Safeguards against excessive load currents.  
- **Low Power Standby Mode:** Enhances efficiency at light loads.  
- **Wide Input Voltage Range:** Suitable for various applications.  
- **Fixed Output Voltage:** No external feedback resistors needed.  

This information is based on the manufacturer's datasheet.

Application Scenarios & Design Considerations

SIMPLE SWITCHER Power Converter High Efficiency 500mA Step-Down Voltage Regulator

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