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LM2574M-3.3/NOPB from NS,National Semiconductor

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LM2574M-3.3/NOPB

Manufacturer: NS

SIMPLE SWITCHER 0.5A Step-Down Voltage Regulator 14-SOIC -40 to 125

Partnumber Manufacturer Quantity Availability
LM2574M-3.3/NOPB,LM2574M33NOPB NS 380 In Stock

Description and Introduction

SIMPLE SWITCHER 0.5A Step-Down Voltage Regulator 14-SOIC -40 to 125 The **LM2574M-3.3/NOPB** is a **3.3V, 0.5A step-down (buck) switching regulator** manufactured by **National Semiconductor (NS)**.  

### **Specifications:**  
- **Output Voltage:** 3.3V (fixed)  
- **Output Current:** 0.5A (max)  
- **Input Voltage Range:** 4.5V to 40V  
- **Switching Frequency:** 52 kHz (fixed)  
- **Efficiency:** Up to 80%  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** 8-Pin SOIC (M)  
- **Regulator Type:** Buck (Step-Down)  
- **Control Method:** PWM (Pulse Width Modulation)  

### **Features:**  
- **Simple and Easy to Use** – Requires minimal external components.  
- **Low Power Standby Mode** – Consumes only 50µA (typical) in shutdown mode.  
- **Internal Frequency Compensation** – Reduces external component count.  
- **Thermal Shutdown and Current Limit Protection** – Enhances reliability.  
- **Wide Input Voltage Range** – Suitable for various applications.  

### **Applications:**  
- Battery-powered systems  
- Industrial power supplies  
- Automotive electronics  
- Distributed power systems  

This regulator is designed for efficient step-down voltage conversion with built-in protection features.

Application Scenarios & Design Considerations

SIMPLE SWITCHER 0.5A Step-Down Voltage Regulator 14-SOIC -40 to 125

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