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LT1374I from LT

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LT1374I

Manufacturer: LT

4.5A/ 500kHz Step-Down Switching Regulator

Partnumber Manufacturer Quantity Availability
LT1374I LT 120 In Stock

Description and Introduction

4.5A/ 500kHz Step-Down Switching Regulator The LT1374I is a high-efficiency switching regulator manufactured by Linear Technology (now part of Analog Devices). Below are its key specifications, descriptions, and features:

### **Specifications:**  
- **Input Voltage Range:** 3.5V to 30V  
- **Output Voltage Range:** Adjustable from 1.25V to 30V  
- **Output Current:** Up to 5A  
- **Switching Frequency:** 500kHz (fixed)  
- **Efficiency:** Up to 90%  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** TO-220 (5-pin)  
- **Topology:** Buck (step-down) regulator  

### **Descriptions:**  
The LT1374I is a monolithic, high-performance switching regulator designed for step-down (buck) applications. It integrates a high-current switch, control circuitry, and protection features, making it suitable for power supply designs requiring high efficiency and compact size.  

### **Features:**  
- **High Efficiency:** Minimizes power loss with synchronous rectification.  
- **Adjustable Output:** Uses an external resistor divider to set the output voltage.  
- **Current Mode Control:** Ensures stable operation and fast transient response.  
- **Internal Soft-Start:** Reduces inrush current during startup.  
- **Overcurrent & Thermal Protection:** Safeguards against fault conditions.  
- **Low Dropout Operation:** Extends battery life in portable applications.  
- **Wide Input Voltage Range:** Supports a variety of power sources.  

This information is based on the manufacturer's datasheet for the LT1374I.

Application Scenarios & Design Considerations

4.5A/ 500kHz Step-Down Switching Regulator

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