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LM3401MM from NS,National Semiconductor

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LM3401MM

Manufacturer: NS

Hysteretic PFET Controller for High Power LED Drive
Partnumber Manufacturer Quantity Availability
LM3401MM NS 10000 In Stock

Description and Introduction

Hysteretic PFET Controller for High Power LED Drive The LM3401MM is a switching regulator manufactured by National Semiconductor (NS).  

**Specifications:**  
- **Input Voltage Range:** 6V to 42V  
- **Output Voltage Range:** Adjustable down to 1.25V  
- **Switching Frequency:** Adjustable up to 1MHz  
- **Maximum Output Current:** 1.5A (dependent on external components)  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** 8-pin MSOP  

**Descriptions:**  
The LM3401MM is a step-down (buck) switching regulator designed for high-efficiency DC-DC conversion. It integrates a high-side N-channel MOSFET driver and provides constant-current or constant-voltage output regulation.  

**Features:**  
- Wide input voltage range (6V to 42V)  
- Adjustable switching frequency (up to 1MHz)  
- Precision 1.25V reference voltage  
- Cycle-by-cycle current limiting  
- Thermal shutdown protection  
- Under-voltage lockout (UVLO)  
- Adjustable soft-start  
- Small MSOP-8 package for space-constrained applications  

This information is based solely on the manufacturer's datasheet.

Application Scenarios & Design Considerations

Hysteretic PFET Controller for High Power LED Drive

Alternative Part Number

  • TPS54331D --: Wide-input buck converter in SOIC-8 that can replace the LM3401 in many step-down LED/driver applications with higher current capability and similar control topology.
  • LM5007MM --: High-voltage buck switching regulator in the same small package family, offering comparable input range and switching behavior for LED driver designs.
  • MP2482DN --: Integrated step-down LED driver with wide input range and simple external component count, suitable as a functional substitute where board space and efficiency matter.

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