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LM2597N-3.3 from NS,National Semiconductor

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LM2597N-3.3

Manufacturer: NS

SIMPLE SWITCHER Power Converter 150 kHz 0.5A Step-Down Voltage Regulator

Partnumber Manufacturer Quantity Availability
LM2597N-3.3,LM2597N33 NS 7 In Stock

Description and Introduction

SIMPLE SWITCHER Power Converter 150 kHz 0.5A Step-Down Voltage Regulator The LM2597N-3.3 is a step-down (buck) switching voltage regulator manufactured by National Semiconductor (NS).  

### **Specifications:**  
- **Output Voltage:** 3.3V (fixed)  
- **Input Voltage Range:** 4.5V to 40V  
- **Output Current:** Up to 3A  
- **Switching Frequency:** 150 kHz  
- **Efficiency:** Up to 90%  
- **Operating Junction Temperature:** -40°C to +125°C  
- **Package:** TO-220-5 (through-hole)  
- **Regulation Type:** PWM (Pulse Width Modulation)  
- **Protection Features:** Thermal shutdown and current limit  

### **Descriptions:**  
The LM2597N-3.3 is a monolithic integrated circuit that provides all active functions for a step-down switching regulator. It is designed for easy implementation in power supply applications, requiring minimal external components.  

### **Features:**  
- **Simple and Efficient Design:** Requires only 4 external components.  
- **Fixed 3.3V Output:** No external feedback resistors needed.  
- **High Efficiency:** Reduces power dissipation.  
- **Wide Input Voltage Range:** Suitable for various power sources.  
- **Thermal Shutdown Protection:** Prevents overheating.  
- **Current Limiting:** Protects against overloads.  

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

Application Scenarios & Design Considerations

SIMPLE SWITCHER Power Converter 150 kHz 0.5A Step-Down Voltage Regulator

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