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LM2574HVM-5.0 from NS,National Semiconductor

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LM2574HVM-5.0

Manufacturer: NS

SIMPLE SWITCHER 0.5A Step-Down Voltage Regulator

Partnumber Manufacturer Quantity Availability
LM2574HVM-5.0,LM2574HVM50 NS 6890 In Stock

Description and Introduction

SIMPLE SWITCHER 0.5A Step-Down Voltage Regulator The **LM2574HVM-5.0** is a step-down (buck) switching voltage regulator manufactured by **National Semiconductor (NS)**. Below are its key specifications, descriptions, and features:  

### **Specifications:**  
- **Output Voltage:** Fixed **5.0V**  
- **Input Voltage Range:** **4.5V to 60V**  
- **Output Current:** **0.5A (500mA) max**  
- **Switching Frequency:** **52 kHz (typical)**  
- **Efficiency:** Up to **80%** (depending on conditions)  
- **Operating Temperature Range:** **-40°C to +125°C**  
- **Package Type:** **TO-263 (D2PAK), TO-220 (5-pin), and TO-220 (5-pin with tab)**  
- **Regulation Type:** **PWM (Pulse Width Modulation)**  

### **Descriptions:**  
- The **LM2574HVM-5.0** is a monolithic **buck converter** designed for step-down voltage regulation.  
- It requires minimal external components, simplifying design.  
- Features **thermal shutdown and current limit protection** for reliability.  
- Suitable for **battery-powered, industrial, and automotive applications** due to its wide input range.  

### **Features:**  
- **Fixed 5.0V output** with **±4% tolerance**  
- **Low power standby mode** (typically **50µA**)  
- **Internal frequency compensation**  
- **Soft-start capability** to reduce inrush current  
- **Wide input voltage range (4.5V–60V)**  
- **Thermal shutdown and current limit protection**  
- **Available in multiple package options**  

This regulator is designed for **efficient power conversion** in various applications, including **automotive, industrial, and consumer electronics**.

Application Scenarios & Design Considerations

SIMPLE SWITCHER 0.5A Step-Down Voltage Regulator

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