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LM431BCM3X from NATIONAL,National Semiconductor

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LM431BCM3X

Manufacturer: NATIONAL

Adjustable Precision Zener Shunt Regulator

Partnumber Manufacturer Quantity Availability
LM431BCM3X NATIONAL 3000 In Stock

Description and Introduction

Adjustable Precision Zener Shunt Regulator The LM431BCM3X is a precision programmable shunt regulator manufactured by National Semiconductor (now part of Texas Instruments). Below are its key specifications, descriptions, and features:

### **Specifications:**
- **Output Voltage Range:** 2.495V to 36V (programmable)  
- **Reference Voltage:** 2.495V (typical)  
- **Operating Current Range:** 1mA to 100mA  
- **Line Regulation:** 0.2% (typical)  
- **Load Regulation:** 0.4% (typical)  
- **Temperature Stability:** ±0.4% over full temperature range  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package Type:** SOT-23 (3-Lead)  

### **Descriptions:**
- The LM431BCM3X is a three-terminal adjustable shunt regulator with thermal stability.  
- It is commonly used in switching power supplies, voltage references, and error amplifiers.  
- The device can replace Zener diodes with improved accuracy and performance.  

### **Features:**
- **Adjustable Output Voltage** via external resistors.  
- **Low Dynamic Output Impedance:** 0.2Ω (typical).  
- **Fast Turn-On Response.**  
- **Low Output Noise.**  
- **Wide Operating Current Range (1mA to 100mA).**  
- **Available in a Small SOT-23 Package.**  

This information is based on the manufacturer's datasheet and technical documentation.

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