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LM2574HVM-1.5 from NSC,National Semiconductor

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LM2574HVM-1.5

Manufacturer: NSC

SIMPLE SWITCHER 0.5A Step-Down Voltage Regulator

Partnumber Manufacturer Quantity Availability
LM2574HVM-1.5,LM2574HVM15 NSC 6 In Stock

Description and Introduction

SIMPLE SWITCHER 0.5A Step-Down Voltage Regulator The LM2574HVM-1.5 is a step-down (buck) switching regulator manufactured by National Semiconductor (NSC).  

### **Specifications:**  
- **Output Voltage:** 1.5V (fixed)  
- **Input Voltage Range:** 4V to 40V  
- **Output Current:** Up to 0.5A  
- **Switching Frequency:** 52 kHz (typical)  
- **Efficiency:** Up to 80%  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** TO-220 (5-pin)  
- **Regulation Type:** PWM (Pulse Width Modulation)  
- **Protection Features:** Thermal shutdown, current limiting  

### **Descriptions:**  
The LM2574HVM-1.5 is a monolithic integrated circuit designed for step-down voltage regulation. It simplifies power supply design by requiring minimal external components. It is suitable for applications requiring a stable 1.5V output from a higher input voltage.  

### **Features:**  
- **Simple and Easy to Use** (requires only 4 external components)  
- **Wide Input Voltage Range** (4V to 40V)  
- **Internally Fixed Frequency Oscillator** (52 kHz)  
- **Low Power Standby Mode** (IQ ~50 μA when disabled)  
- **High Efficiency** (up to 80%)  
- **Thermal Shutdown and Current Limit Protection**  
- **TO-220 Package for Better Heat Dissipation**  

This regulator is commonly used in power supplies for industrial, automotive, and consumer electronics applications.

Application Scenarios & Design Considerations

SIMPLE SWITCHER 0.5A Step-Down Voltage Regulator

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