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LM22678TJE-ADJ from NS,National Semiconductor

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LM22678TJE-ADJ

Manufacturer: NS

LM22678 5A SIMPLE SWITCHER?, Step-Down Voltage Regulator with Precision Enable

Partnumber Manufacturer Quantity Availability
LM22678TJE-ADJ,LM22678TJEADJ NS 1020 In Stock

Description and Introduction

LM22678 5A SIMPLE SWITCHER?, Step-Down Voltage Regulator with Precision Enable The **LM22678TJE-ADJ** is a switching voltage regulator manufactured by **National Semiconductor (NS)**. Below are the key specifications, descriptions, and features based on the available knowledge base:

### **Specifications:**  
- **Input Voltage Range:** 4.5V to 42V  
- **Output Voltage Range:** Adjustable (1.285V to 37V)  
- **Output Current:** Up to 5A  
- **Switching Frequency:** 500 kHz (typical)  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** TO-263-7 (DDPAK/TO-263)  
- **Regulation Type:** Step-Down (Buck)  
- **Control Method:** Voltage Mode PWM  

### **Descriptions:**  
- The **LM22678TJE-ADJ** is a high-efficiency, step-down DC-DC converter designed for industrial, automotive, and general-purpose applications.  
- It features an adjustable output voltage via external resistors.  
- The device includes internal protection features such as thermal shutdown, current limiting, and under-voltage lockout (UVLO).  

### **Features:**  
- **Wide Input Voltage Range (4.5V to 42V)** – Suitable for various power sources.  
- **High Efficiency (Up to 95%)** – Reduces power dissipation.  
- **Adjustable Output Voltage (1.285V to 37V)** – Flexible for different applications.  
- **500 kHz Switching Frequency** – Allows for smaller external components.  
- **Integrated N-Channel MOSFET** – Simplifies design and improves reliability.  
- **Thermal Shutdown & Current Limit Protection** – Enhances system safety.  
- **Under-Voltage Lockout (UVLO)** – Ensures proper operation under low input voltage conditions.  
- **TO-263-7 Package** – Optimized for thermal performance and space-saving designs.  

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

Application Scenarios & Design Considerations

LM22678 5A SIMPLE SWITCHER?, Step-Down Voltage Regulator with Precision Enable

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