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LM2574N-ADJ from NS,National Semiconductor

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LM2574N-ADJ

Manufacturer: NS

SIMPLE SWITCHER 0.5A Step-Down Voltage Regulator

Partnumber Manufacturer Quantity Availability
LM2574N-ADJ,LM2574NADJ NS 2398 In Stock

Description and Introduction

SIMPLE SWITCHER 0.5A Step-Down Voltage Regulator The LM2574N-ADJ is a step-down (buck) switching regulator manufactured by National Semiconductor (NS). Below are its specifications, descriptions, and features based on Ic-phoenix technical data files:

### **Specifications:**  
- **Input Voltage Range:** 4.5V to 40V  
- **Adjustable Output Voltage:** 1.23V to 37V (set by 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 DIP (Dual In-line Package)  

### **Descriptions:**  
- The LM2574N-ADJ is a monolithic integrated circuit that provides all active functions for a step-down switching regulator.  
- It is designed for easy implementation in applications requiring efficient power conversion with minimal external components.  
- The adjustable version allows the output voltage to be set using external resistors.  

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

This information is strictly factual and derived from the manufacturer's datasheet.

Application Scenarios & Design Considerations

SIMPLE SWITCHER 0.5A Step-Down Voltage Regulator

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