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LM3401MMX from NS,National Semiconductor

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LM3401MMX

Manufacturer: NS

Hysteretic PFET Controller for High Power LED Drive

Partnumber Manufacturer Quantity Availability
LM3401MMX NS 50000 In Stock

Description and Introduction

Hysteretic PFET Controller for High Power LED Drive The LM3401MMX is a step-down DC-DC switching regulator manufactured by National Semiconductor (NS).  

### **Specifications:**  
- **Input Voltage Range:** 4.5V to 35V  
- **Output Voltage Range:** Adjustable down to 1.225V  
- **Switching Frequency:** Adjustable up to 1MHz  
- **Output Current:** Up to 1.5A (with external components)  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** 8-Pin VSSOP (MMX)  

### **Descriptions:**  
The LM3401MMX is a monolithic buck regulator designed for high-efficiency step-down voltage conversion. It integrates a high-side N-channel MOSFET driver and uses a constant-on-time (COT) control scheme for fast transient response.  

### **Features:**  
- **Wide Input Voltage Range:** Supports 4.5V to 35V operation.  
- **Adjustable Output Voltage:** Set via external resistors.  
- **Constant-On-Time Control:** Ensures fast transient response.  
- **Adjustable Frequency:** Up to 1MHz for optimized efficiency.  
- **Cycle-by-Cycle Current Limiting:** Protects against overloads.  
- **Thermal Shutdown:** Prevents overheating.  
- **Low Shutdown Current:** <1µA in shutdown mode.  
- **Small Footprint:** 8-pin VSSOP package for space-constrained applications.  

This information is based on the manufacturer's datasheet.

Application Scenarios & Design Considerations

Hysteretic PFET Controller for High Power LED Drive

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