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LM431SC from FAIRCHILD,Fairchild Semiconductor

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LM431SC

Manufacturer: FAIRCHILD

Programmable Shunt Regulator

Partnumber Manufacturer Quantity Availability
LM431SC FAIRCHILD 2800 In Stock

Description and Introduction

Programmable Shunt Regulator The LM431SC is a precision programmable shunt regulator manufactured by Fairchild Semiconductor (now part of ON Semiconductor). Below are its specifications, descriptions, and features based on factual information from Ic-phoenix technical data files:

### **Specifications:**  
- **Output Voltage Range:** 2.5V to 36V  
- **Reference Voltage (Vref):** 2.495V (Typical)  
- **Operating Current Range (Ika):** 1mA to 100mA  
- **Temperature Stability:** 50ppm/°C (Typical)  
- **Sink Current Capability:** 1mA to 100mA  
- **Package Type:** TO-92, SOT-23, or SOIC (LM431SC is in SOIC-8 package)  
- **Operating Temperature Range:** 0°C to +70°C  

### **Descriptions:**  
The LM431SC is a three-terminal adjustable shunt regulator with thermal stability over the full operating temperature range. It is commonly used in power supply regulation, voltage monitoring, and precision voltage reference applications. The device operates by comparing the reference voltage with an external voltage divider to maintain a stable output.  

### **Features:**  
- **Adjustable Output Voltage:** Can be set from Vref (2.495V) up to 36V.  
- **Low Dynamic Output Impedance:** 0.2Ω (Typical).  
- **Low Output Noise Voltage.**  
- **Fast Turn-On Response.**  
- **Wide Operating Current Range (1mA to 100mA).**  
- **Available in Multiple Package Options (SOIC-8 for LM431SC).**  

This information is based on Fairchild's datasheet for the LM431SC. For detailed electrical characteristics and application circuits, refer to the official datasheet.

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