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KA431SMF2 from FAIRCHILD,Fairchild Semiconductor

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KA431SMF2

Manufacturer: FAIRCHILD

Programmable Shunt Regulator

Partnumber Manufacturer Quantity Availability
KA431SMF2 FAIRCHILD 7500 In Stock

Description and Introduction

Programmable Shunt Regulator The KA431SMF2 is a voltage reference IC manufactured by Fairchild Semiconductor (now part of ON Semiconductor). Below are its specifications, descriptions, and features based on available data:  

### **Specifications:**  
- **Type:** Adjustable Precision Shunt Regulator  
- **Reference Voltage:** 2.495V (typical)  
- **Voltage Range:** 2.5V to 36V  
- **Operating Current:** 1mA to 100mA  
- **Output Tolerance:** ±0.5% (A grade), ±1% (B grade)  
- **Temperature Stability:** 50ppm/°C (typical)  
- **Package:** SOT-23 (3-pin)  

### **Descriptions:**  
- The KA431SMF2 is a three-terminal adjustable shunt regulator with thermal stability.  
- It is commonly used in power supplies, battery chargers, and voltage monitoring circuits.  
- The device provides precise voltage regulation by comparing an external voltage divider output to its internal reference.  

### **Features:**  
- **Adjustable Output Voltage** (via external resistors)  
- **Low Dynamic Output Impedance** (0.2Ω typical)  
- **Low Temperature Drift**  
- **Sink Current Capability** (up to 100mA)  
- **Wide Operating Range** (2.5V to 36V)  
- **Available in Different Tolerance Grades**  

For exact electrical characteristics, refer to the official datasheet from Fairchild/ON Semiconductor.

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