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LM3402HVMM from NS,National Semiconductor

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LM3402HVMM

Manufacturer: NS

LM3402/LM3402HV 0.5A Constant Current Buck Regulator for Driving High Power LEDs

Partnumber Manufacturer Quantity Availability
LM3402HVMM NS 20000 In Stock

Description and Introduction

LM3402/LM3402HV 0.5A Constant Current Buck Regulator for Driving High Power LEDs The LM3402HVMM is a high-voltage buck regulator manufactured by Texas Instruments (NS).  

### **Specifications:**  
- **Input Voltage Range:** 6V to 75V  
- **Output Voltage Range:** Adjustable down to 1.25V  
- **Output Current:** Up to 525mA  
- **Switching Frequency:** Adjustable (300kHz to 1MHz)  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** 8-Pin VSSOP (MM)  

### **Descriptions:**  
The LM3402HVMM is a monolithic, high-efficiency buck regulator designed for high-voltage applications. It integrates a high-side N-channel MOSFET and provides constant output current for driving LEDs or general power regulation.  

### **Features:**  
- **Wide Input Voltage Range (6V–75V)**  
- **Adjustable Output Current Limit**  
- **PWM Dimming Control**  
- **Thermal Shutdown Protection**  
- **Undervoltage Lockout (UVLO)**  
- **Cycle-by-Cycle Current Limiting**  
- **Small Footprint (VSSOP Package)**  

This regulator is commonly used in LED drivers, industrial power supplies, and automotive applications.

Application Scenarios & Design Considerations

LM3402/LM3402HV 0.5A Constant Current Buck Regulator for Driving High Power LEDs

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