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LM2574M-15 from NS,National Semiconductor

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LM2574M-15

Manufacturer: NS

SIMPLE SWITCHER 0.5A Step-Down Voltage Regulator

Partnumber Manufacturer Quantity Availability
LM2574M-15,LM2574M15 NS 636 In Stock

Description and Introduction

SIMPLE SWITCHER 0.5A Step-Down Voltage Regulator The LM2574M-15 is a step-down (buck) switching voltage regulator manufactured by National Semiconductor (NS).  

### **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 Temperature Range:** -40°C to +125°C  
- **Package:** 8-Pin SOIC (M)  

### **Descriptions:**  
The LM2574M-15 is a monolithic integrated circuit that provides all necessary functions for a step-down switching regulator. It is designed for simplicity and ease of use, requiring minimal external components. The fixed -15V output version eliminates the need for external feedback resistors.  

### **Features:**  
- **Fixed -15V Output**  
- **Low Power Standby Mode (IQ < 50µA)**  
- **Internal Frequency Compensation**  
- **Thermal Shutdown & Current Limit Protection**  
- **Requires Only 4 External Components**  
- **Wide Input Voltage Range**  

This regulator is commonly used in power supply applications where a stable negative voltage is required.

Application Scenarios & Design Considerations

SIMPLE SWITCHER 0.5A Step-Down Voltage Regulator

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