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LM2574N-15 from NSC,National Semiconductor

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LM2574N-15

Manufacturer: NSC

SIMPLE SWITCHER 0.5A Step-Down Voltage Regulator

Partnumber Manufacturer Quantity Availability
LM2574N-15,LM2574N15 NSC 44 In Stock

Description and Introduction

SIMPLE SWITCHER 0.5A Step-Down Voltage Regulator The LM2574N-15 is a step-down (buck) switching voltage regulator manufactured by National Semiconductor (NSC).  

### **Specifications:**  
- **Output Voltage:** Fixed -15V  
- **Output Current:** Up to 0.5A  
- **Input Voltage Range:** 4.5V to 40V  
- **Switching Frequency:** 52 kHz (typical)  
- **Efficiency:** Up to 80%  
- **Operating Junction Temperature:** -40°C to +125°C  
- **Package:** 8-Pin DIP (Dual Inline Package)  
- **Regulation Type:** PWM (Pulse Width Modulation)  

### **Descriptions:**  
- The LM2574N-15 is a monolithic integrated circuit designed for step-down voltage regulation.  
- It simplifies power supply design with minimal external components.  
- Includes built-in frequency compensation and a fixed-frequency oscillator.  
- Features thermal shutdown and current limit protection.  

### **Features:**  
- **Fixed Output Voltage (-15V)**  
- **Low Power Standby Mode** (IQ ~50μA)  
- **Wide Input Voltage Range** (4.5V to 40V)  
- **High Efficiency**  
- **Thermal Shutdown Protection**  
- **Current Limiting Protection**  
- **Requires Only 4 External Components**  

This regulator is commonly used in industrial, automotive, and consumer applications requiring efficient power conversion.

Application Scenarios & Design Considerations

SIMPLE SWITCHER 0.5A Step-Down Voltage Regulator

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