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LM138K from ST,ST Microelectronics

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LM138K

Manufacturer: ST

5A Positive Adjustable Voltage Regulator

Partnumber Manufacturer Quantity Availability
LM138K ST 1000 In Stock

Description and Introduction

5A Positive Adjustable Voltage Regulator The LM138K is a precision 3-terminal adjustable voltage regulator manufactured by STMicroelectronics (ST).  

### **Specifications:**  
- **Output Voltage Range:** 1.2V to 32V  
- **Output Current:** 5A  
- **Line Regulation:** 0.005%/V (typical)  
- **Load Regulation:** 0.1% (typical)  
- **Operating Temperature Range:** -55°C to +150°C  
- **Package:** TO-3 (Metal Can)  
- **Reference Voltage:** 1.25V  
- **Thermal Resistance (Junction-to-Case):** 2.3°C/W  

### **Descriptions & Features:**  
- Designed for high-current applications requiring precise voltage regulation.  
- Features thermal overload protection and short-circuit protection.  
- Adjustable output voltage with only two external resistors.  
- Low dropout voltage at high currents.  
- Stable with low-ESR output capacitors.  
- Suitable for industrial, automotive, and power supply applications.  

This regulator is commonly used in power supplies, battery chargers, and instrumentation systems.

Application Scenarios & Design Considerations

5A Positive Adjustable Voltage Regulator

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