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LM3404HVMR from NS,National Semiconductor

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LM3404HVMR

Manufacturer: NS

LM3404/04HV 1.0A Constant Current Buck Regulator for Driving High Power LEDs

Partnumber Manufacturer Quantity Availability
LM3404HVMR NS 25000 In Stock

Description and Introduction

LM3404/04HV 1.0A Constant Current Buck Regulator for Driving High Power LEDs The LM3404HVMR is a high-voltage step-down switching regulator manufactured by Texas Instruments (NS).  

### **Specifications:**  
- **Input Voltage Range:** 6V to 42V  
- **Output Voltage Range:** Adjustable down to 1.25V  
- **Output Current:** Up to 500mA  
- **Switching Frequency:** Adjustable up to 1MHz  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** 8-Pin SOIC (Exposed Pad)  

### **Descriptions:**  
The LM3404HVMR is a constant on-time (COT) buck regulator designed for high-voltage applications. It provides a compact and efficient solution for step-down DC-DC conversion with minimal external components.  

### **Features:**  
- **Wide Input Voltage Range (6V–42V)**  
- **Adjustable Output Voltage (1.25V to VIN)**  
- **Constant On-Time (COT) Control for Fast Transient Response**  
- **Integrated N-Channel MOSFET**  
- **Adjustable Switching Frequency (Up to 1MHz)**  
- **Thermal Shutdown Protection**  
- **Undervoltage Lockout (UVLO)**  
- **Low Quiescent Current (Typ. 85µA)**  

This regulator is suitable for industrial, automotive, and general-purpose power supply applications.

Application Scenarios & Design Considerations

LM3404/04HV 1.0A Constant Current Buck Regulator for Driving High Power LEDs

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