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LM2674LD-5.0 from NS,National Semiconductor

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LM2674LD-5.0

Manufacturer: NS

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

Partnumber Manufacturer Quantity Availability
LM2674LD-5.0,LM2674LD50 NS 4690 In Stock

Description and Introduction

SIMPLE SWITCHER Power Converter High Efficiency 500mA Step-Down Voltage Regulator The LM2674LD-5.0 is a step-down voltage regulator manufactured by National Semiconductor (NS).  

### **Specifications:**  
- **Output Voltage:** 5.0V (fixed)  
- **Input Voltage Range:** 8V to 40V  
- **Output Current:** Up to 500mA  
- **Switching Frequency:** 260kHz (typical)  
- **Efficiency:** Up to 90%  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** SOIC-8 (LD)  

### **Descriptions:**  
The LM2674LD-5.0 is a monolithic integrated circuit providing all active functions for a step-down (buck) switching regulator. It features high efficiency, requiring minimal external components, and includes a fixed-frequency oscillator for simplified design.  

### **Features:**  
- Simple and easy-to-use design  
- Internal soft-start for reduced inrush current  
- Thermal shutdown and current limit protection  
- Low power standby mode  
- Adjustable output version available (LM2674)  
- Requires only 5 external components for operation  

This regulator is suitable for a variety of applications, including power supplies for industrial, automotive, and consumer electronics.

Application Scenarios & Design Considerations

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

Alternative Part Number

  • TPS5420D --: Wide-input 5.0V step-down converter in SOIC-8 with similar current capability, pin-compatible family from a major supplier.
  • MC34063ADR2G --: Versatile adjustable buck converter IC widely used as a replacement for simple 5V regulators, low cost and readily available.
  • AP1501-50K5L --: Fixed 5.0V 3A step-down converter with integrated switch, suitable drop-in alternative for low-power 5V buck applications.

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