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LM340K-12 from NSC,National Semiconductor

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LM340K-12

Manufacturer: NSC

Series 3-Terminal Positive Regulators

Partnumber Manufacturer Quantity Availability
LM340K-12,LM340K12 NSC 41 In Stock

Description and Introduction

Series 3-Terminal Positive Regulators The LM340K-12 is a voltage regulator manufactured by National Semiconductor (NSC).  

### **Specifications:**  
- **Output Voltage:** 12V  
- **Output Current:** Up to 1.5A  
- **Input Voltage Range:** 14.5V to 35V  
- **Dropout Voltage:** 2V (typical)  
- **Line Regulation:** 0.01%/V (typical)  
- **Load Regulation:** 0.3% (typical)  
- **Operating Temperature Range:** 0°C to +125°C  
- **Package:** TO-3 (Metal Can)  

### **Descriptions and Features:**  
- Fixed 12V output voltage  
- Thermal overload protection  
- Short-circuit protection  
- Internal current limiting  
- High ripple rejection ratio  
- Designed for rugged industrial and automotive applications  
- Requires minimal external components for operation  

This regulator is commonly used in power supply circuits requiring stable 12V output.

Application Scenarios & Design Considerations

Series 3-Terminal Positive Regulators
Partnumber Manufacturer Quantity Availability
LM340K-12,LM340K12 NS 38 In Stock

Description and Introduction

Series 3-Terminal Positive Regulators The LM340K-12 is a positive voltage regulator manufactured by National Semiconductor (NS).  

### **Specifications:**  
- **Output Voltage:** 12V  
- **Output Current:** 1.5A (with proper heat sinking)  
- **Input Voltage Range:** Up to 35V  
- **Line Regulation:** 0.01% (typical)  
- **Load Regulation:** 0.3% (typical)  
- **Dropout Voltage:** 2V (typical)  
- **Operating Temperature Range:** 0°C to +125°C  
- **Package:** TO-3 (metal can)  

### **Descriptions:**  
The LM340K-12 is a fixed 12V linear voltage regulator designed to provide stable output voltage with minimal external components. It includes thermal overload protection, short-circuit protection, and safe operating area (SOA) protection.  

### **Features:**  
- **Fixed 12V Output**  
- **Thermal Overload Protection**  
- **Short-Circuit Protection**  
- **Internal Current Limiting**  
- **High Ripple Rejection**  
- **TO-3 Package for Efficient Heat Dissipation**  

This regulator is commonly used in power supply applications requiring a stable 12V output.

Application Scenarios & Design Considerations

Series 3-Terminal Positive Regulators

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