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LM123K

THREE-TERMINAL 3A-5V POSITIVE VOLTAGE REGULATORS

Partnumber Manufacturer Quantity Availability
LM123K 32 In Stock

Description and Introduction

THREE-TERMINAL 3A-5V POSITIVE VOLTAGE REGULATORS The LM123K is a precision voltage regulator manufactured by National Semiconductor (now part of Texas Instruments).  

### **Specifications:**  
- **Output Voltage:** 5V (fixed)  
- **Output Current:** 3A  
- **Input Voltage Range:** 7.5V to 20V  
- **Line Regulation:** 0.01% (typical)  
- **Load Regulation:** 0.1% (typical)  
- **Dropout Voltage:** 2V (typical at 3A)  
- **Operating Temperature Range:** 0°C to +125°C  
- **Package Type:** TO-3 (metal can)  

### **Descriptions and Features:**  
- Designed for high-current applications requiring stable 5V output.  
- Includes thermal overload protection and short-circuit protection.  
- Features low output impedance and high ripple rejection.  
- Suitable for industrial, automotive, and power supply applications.  
- Robust construction with a TO-3 package for efficient heat dissipation.  

For detailed datasheets, refer to Texas Instruments' official documentation.

Application Scenarios & Design Considerations

THREE-TERMINAL 3A-5V POSITIVE VOLTAGE REGULATORS
Partnumber Manufacturer Quantity Availability
LM123K NS 20 In Stock

Description and Introduction

THREE-TERMINAL 3A-5V POSITIVE VOLTAGE REGULATORS The LM123K is a precision voltage regulator manufactured by National Semiconductor (NS).  

### **Specifications:**  
- **Output Voltage:** 5V ±2%  
- **Output Current:** Up to 3A  
- **Input Voltage Range:** 7.5V to 20V  
- **Dropout Voltage:** 2V (typical)  
- **Line Regulation:** 0.01% (typical)  
- **Load Regulation:** 0.1% (typical)  
- **Operating Temperature Range:** 0°C to +125°C  
- **Package:** TO-3 (Metal Can)  

### **Descriptions and Features:**  
- Designed for high-current, low-dropout applications.  
- Includes thermal shutdown and current limiting for protection.  
- Stable with low-ESR output capacitors.  
- Suitable for industrial, automotive, and power supply applications.  

This information is based on the manufacturer's datasheet.

Application Scenarios & Design Considerations

THREE-TERMINAL 3A-5V POSITIVE VOLTAGE REGULATORS
Partnumber Manufacturer Quantity Availability
LM123K NSC 48 In Stock

Description and Introduction

THREE-TERMINAL 3A-5V POSITIVE VOLTAGE REGULATORS The LM123K is a precision voltage regulator manufactured by National Semiconductor Corporation (NSC). Below are its specifications, descriptions, and features based on factual information from Ic-phoenix technical data files:  

### **Specifications:**  
- **Output Voltage:** 5V ±2%  
- **Output Current:** 3A  
- **Input Voltage Range:** 7.5V to 20V  
- **Dropout Voltage:** 2V (typical at 3A)  
- **Line Regulation:** 0.01% (typical)  
- **Load Regulation:** 0.1% (typical)  
- **Operating Temperature Range:** 0°C to +125°C  
- **Package Type:** TO-3 (Metal Can)  

### **Descriptions:**  
- The LM123K is a fixed 5V voltage regulator designed for high-current applications.  
- It includes internal current limiting, thermal shutdown, and safe operating area protection.  
- Suitable for use in power supplies, industrial controls, and automotive applications.  

### **Features:**  
- **High Current Capability:** Supports up to 3A output current.  
- **Thermal Protection:** Internal shutdown prevents damage from overheating.  
- **Short-Circuit Protection:** Built-in current limiting safeguards the regulator.  
- **Stable Operation:** Requires minimal external components for reliable performance.  
- **Low Output Noise:** Provides clean and stable DC output.  

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

Application Scenarios & Design Considerations

THREE-TERMINAL 3A-5V POSITIVE VOLTAGE REGULATORS

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