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LM2674MADJ from NS,National Semiconductor

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LM2674MADJ

Manufacturer: NS

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

Partnumber Manufacturer Quantity Availability
LM2674MADJ NS 37 In Stock

Description and Introduction

SIMPLE SWITCHER Power Converter High Efficiency 500mA Step-Down Voltage Regulator The LM2674MADJ is a switching regulator manufactured by National Semiconductor (NS).  

**Specifications:**  
- **Input Voltage Range:** 8V to 40V  
- **Output Voltage Range:** Adjustable from 1.21V to 37V  
- **Output Current:** Up to 500mA  
- **Switching Frequency:** 260 kHz (fixed)  
- **Efficiency:** Up to 90%  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** SOIC-8  

**Descriptions:**  
The LM2674MADJ is a step-down (buck) switching voltage regulator designed for high efficiency and ease of use. It features an adjustable output voltage and requires minimal external components.  

**Features:**  
- Adjustable output voltage  
- High efficiency (up to 90%)  
- Low power standby mode  
- Thermal shutdown and current limit protection  
- Simple external component count  
- Internal soft-start function  
- Wide input voltage range  

This regulator is suitable for applications requiring efficient power conversion, such as 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 2A step-down converter with adjustable output, pin-compatible function and similar SOIC-8 package; TI is the direct successor to National Semiconductor parts.
  • MP1584EN --: 3A adjustable step-down regulator with wide input range, commonly used as a drop-in replacement for LM2674 in similar buck applications.
  • L5973D --: 2.5A adjustable step-down switching regulator with comparable input voltage range and SOIC-8 footprint, suitable alternative for LM2674MADJ.

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