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LM2574M-ADJ from NS,National Semiconductor

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LM2574M-ADJ

Manufacturer: NS

SIMPLE SWITCHER 0.5A Step-Down Voltage Regulator

Partnumber Manufacturer Quantity Availability
LM2574M-ADJ,LM2574MADJ NS 4053 In Stock

Description and Introduction

SIMPLE SWITCHER 0.5A Step-Down Voltage Regulator The LM2574M-ADJ is a step-down (buck) switching voltage regulator manufactured by National Semiconductor (NS).  

### **Specifications:**  
- **Input Voltage Range:** 4.5V to 40V  
- **Adjustable Output Voltage:** 1.23V to 37V (set via external resistors)  
- **Output Current:** Up to 0.5A  
- **Switching Frequency:** 52 kHz (fixed)  
- **Efficiency:** Up to 80%  
- **Operating Junction Temperature:** -40°C to +125°C  
- **Package:** 8-Pin SOIC (M)  

### **Descriptions:**  
The LM2574M-ADJ is a monolithic integrated circuit that provides all active functions for a step-down switching regulator. It is designed for easy implementation in various power supply applications, offering high efficiency and requiring minimal external components.  

### **Features:**  
- Adjustable output voltage  
- Internal current limiting and thermal shutdown  
- Low power standby mode (IQ ≈ 50µA)  
- Requires only 4 external components  
- Wide input voltage range  
- Stable with low-ESR output capacitors  

This regulator is commonly used in battery-powered systems, industrial controls, and automotive applications.

Application Scenarios & Design Considerations

SIMPLE SWITCHER 0.5A Step-Down Voltage Regulator

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