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LM3411AM5X-5.0 from NS,National Semiconductor

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LM3411AM5X-5.0

Manufacturer: NS

Precision Secondary Regulator/Driver

Partnumber Manufacturer Quantity Availability
LM3411AM5X-5.0,LM3411AM5X50 NS 795 In Stock

Description and Introduction

Precision Secondary Regulator/Driver The LM3411AM5X-5.0 is a step-down DC-DC converter manufactured by National Semiconductor (NS). Below are its specifications, descriptions, and features:

### **Specifications:**
- **Output Voltage:** 5.0V (fixed)  
- **Input Voltage Range:** 2.7V to 5.5V  
- **Output Current:** Up to 525mA  
- **Switching Frequency:** 1.6MHz (typical)  
- **Efficiency:** Up to 90%  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** SOT-23-5  

### **Descriptions:**
The LM3411AM5X-5.0 is a high-efficiency, step-down (buck) DC-DC converter designed for low-power applications. It integrates a power switch and synchronous rectifier, reducing external component count. The fixed 5.0V output makes it suitable for powering microcontrollers, sensors, and other low-voltage devices.  

### **Features:**
- **Fixed 5.0V Output**  
- **High Efficiency (up to 90%)**  
- **Low Quiescent Current (20µA typical)**  
- **Internal Soft-Start**  
- **Over-Temperature Protection**  
- **Short-Circuit Protection**  
- **Synchronous Rectification**  
- **Small SOT-23-5 Package**  

This device is optimized for battery-powered and space-constrained applications.

Application Scenarios & Design Considerations

Precision Secondary Regulator/Driver

Alternative Part Number

  • TL431ACDBZR --: Industry-standard adjustable shunt voltage reference with 2.5V reference, widely used as a replacement for fixed 5V references in many designs; excellent availability and low cost.
  • LM4040CIM3-5.0 --: Precision 5.0V shunt voltage reference in SOT-23 package, directly matches the 5.0V output and small form factor of the original device.
  • ZR40405F --: 5.0V precision shunt reference in SOT-23, functionally similar fixed 5V reference suitable for regulation and bias applications.

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