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LM3402MM NOPB from NSC,National Semiconductor

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LM3402MM NOPB

Manufacturer: NSC

0.5A Constant Current Buck Regulator for High Power LED Drivers 8-VSSOP -40 to 125

Partnumber Manufacturer Quantity Availability
LM3402MM NOPB,LM3402MMNOPB NSC 25000 In Stock

Description and Introduction

0.5A Constant Current Buck Regulator for High Power LED Drivers 8-VSSOP -40 to 125 The LM3402MM/NOPB is a switching regulator IC manufactured by National Semiconductor (NSC). Below are its key specifications, descriptions, and features:  

### **Specifications:**  
- **Input Voltage Range:** 6V to 42V  
- **Output Voltage Range:** Adjustable down to 1.244V  
- **Output Current:** Up to 500mA  
- **Switching Frequency:** Adjustable (300kHz to 1MHz)  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** 8-Pin VSSOP (MSOP)  

### **Descriptions:**  
The LM3402MM/NOPB is a step-down (buck) DC-DC converter designed for high-efficiency power conversion. It integrates a high-side N-channel MOSFET and provides constant current regulation, making it suitable for driving LEDs or other low-voltage applications.  

### **Features:**  
- **Wide Input Voltage Range:** Supports 6V to 42V operation.  
- **Adjustable Output:** External resistor divider sets output voltage.  
- **PWM Dimming Control:** Supports LED brightness adjustment.  
- **Thermal Shutdown:** Protects against overheating.  
- **Cycle-by-Cycle Current Limiting:** Enhances reliability.  
- **Small Footprint:** 8-pin MSOP package for space-constrained designs.  

This information is based on the manufacturer's datasheet. For detailed application notes, refer to the official documentation.

Application Scenarios & Design Considerations

0.5A Constant Current Buck Regulator for High Power LED Drivers 8-VSSOP -40 to 125

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