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L7812 from ST,ST Microelectronics

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L7812

Manufacturer: ST

POSITIVE VOLTAGE REGULATORS

Partnumber Manufacturer Quantity Availability
L7812 ST 960 In Stock

Description and Introduction

POSITIVE VOLTAGE REGULATORS The L7812 is a positive voltage regulator manufactured by STMicroelectronics. Below are the factual specifications, descriptions, and features from Ic-phoenix technical data files:

### **Specifications:**  
- **Output Voltage:** +12V  
- **Output Current:** Up to 1.5A  
- **Input Voltage Range:** Up to 35V (recommended 14.5V to 27V for optimal performance)  
- **Dropout Voltage:** 2V (typical)  
- **Line Regulation:** 0.03% (typical)  
- **Load Regulation:** 0.1% (typical)  
- **Operating Temperature Range:** 0°C to +125°C  
- **Thermal Resistance (Junction-to-Ambient):** 50°C/W (TO-220 package)  
- **Thermal Resistance (Junction-to-Case):** 5°C/W (TO-220 package)  

### **Descriptions:**  
- The L7812 is a three-terminal fixed positive voltage regulator in the 78xx series.  
- It provides a stable +12V output with built-in thermal overload protection, short-circuit protection, and safe operating area (SOA) protection.  
- Available in multiple package types, including TO-220, TO-220FP, D²PAK, and TO-3.  

### **Features:**  
- **Thermal Overload Protection:** Automatically shuts down if temperature exceeds safe limits.  
- **Short-Circuit Protection:** Safeguards against output short circuits.  
- **Output Transistor Safe Operating Area Protection:** Prevents damage due to excessive current or voltage.  
- **No External Components Required:** Only input and output capacitors are needed for stability.  
- **Internal Current Limiting:** Protects against excessive current draw.  

This information is based on STMicroelectronics' official datasheet for the L7812 voltage regulator.

Application Scenarios & Design Considerations

POSITIVE VOLTAGE REGULATORS

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