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LT3431IFE#PBF from LT

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LT3431IFE#PBF

Manufacturer: LT

High Voltage, 3A, 500kHz Step-Down Switching Regulator

Partnumber Manufacturer Quantity Availability
LT3431IFE#PBF,LT3431IFEPBF LT 181 In Stock

Description and Introduction

High Voltage, 3A, 500kHz Step-Down Switching Regulator The LT3431IFE#PBF is a high voltage, high efficiency switching regulator manufactured by Linear Technology (now part of Analog Devices). Below are its key specifications, descriptions, and features:

### **Manufacturer:**  
- **Linear Technology (now Analog Devices)**  

### **Specifications:**  
- **Input Voltage Range:** 3.5V to 60V  
- **Output Voltage Range:** Adjustable from 1.24V to 50V  
- **Output Current:** Up to 500mA  
- **Switching Frequency:** 200kHz  
- **Efficiency:** Up to 85%  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** 16-Lead TSSOP (Exposed Pad)  
- **Topology:** Step-Down (Buck) Regulator  

### **Descriptions:**  
- The LT3431IFE#PBF is a monolithic, high voltage step-down switching regulator.  
- It features a built-in NPN power switch, allowing high efficiency and low dropout operation.  
- Designed for applications requiring high input voltages and compact power solutions.  

### **Features:**  
- **Wide Input Voltage Range (3.5V to 60V)**  
- **Low Quiescent Current (50µA in Shutdown)**  
- **Adjustable Output Voltage (1.24V to 50V)**  
- **Internal NPN Power Switch (500mA Current Limit)**  
- **Thermal Shutdown Protection**  
- **Short-Circuit Protected**  
- **Soft-Start Functionality**  
- **Synchronous Rectification for Improved Efficiency**  

This regulator is commonly used in automotive, industrial, and battery-powered applications requiring high voltage conversion.

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