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LM3403N from NS,National Semiconductor

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LM3403N

Manufacturer: NS

Quad Operational Amplifiers

Partnumber Manufacturer Quantity Availability
LM3403N NS 728 In Stock

Description and Introduction

Quad Operational Amplifiers The LM3403N is a switching regulator manufactured by National Semiconductor (NS). Below are the factual details from Ic-phoenix technical data files:

### **Manufacturer:**  
National Semiconductor (NS)  

### **Specifications:**  
- **Input Voltage Range:** 4.5V to 36V  
- **Output Voltage Range:** Adjustable down to 1.25V  
- **Output Current:** Up to 3A  
- **Switching Frequency:** 100 kHz to 1.5 MHz (adjustable with external resistor)  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** 8-Pin DIP (Dual Inline Package)  

### **Descriptions:**  
The LM3403N is a step-down (buck) switching regulator designed for high-efficiency power conversion. It integrates a high-side N-channel MOSFET and provides a simple, compact solution for DC-DC voltage regulation.  

### **Features:**  
- **Wide Input Voltage Range:** Supports 4.5V to 36V input  
- **Adjustable Output Voltage:** Configurable via external resistors  
- **High Efficiency:** Up to 95% with synchronous rectification  
- **Adjustable Switching Frequency:** 100 kHz to 1.5 MHz  
- **Thermal Shutdown Protection:** Prevents overheating  
- **Under-Voltage Lockout (UVLO):** Ensures proper startup  
- **Current Limit Protection:** Safeguards against overcurrent conditions  

This information is strictly based on the manufacturer's datasheet and technical specifications.

Application Scenarios & Design Considerations

Quad Operational Amplifiers

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