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LT3439EFE#PBF from LINEAR

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LT3439EFE#PBF

Manufacturer: LINEAR

Slew Rate Controlled Ultralow Noise 1A Isolated DC/DC Transformer Driver

Partnumber Manufacturer Quantity Availability
LT3439EFE#PBF,LT3439EFEPBF LINEAR 153 In Stock

Description and Introduction

Slew Rate Controlled Ultralow Noise 1A Isolated DC/DC Transformer Driver The LT3439EFE#PBF is a step-down 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 60V  
- **Output Voltage Range:** Adjustable from 1.25V to 20V  
- **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)  

### **Descriptions:**
- The LT3439EFE#PBF is a high-voltage, step-down DC/DC converter with an integrated power switch.  
- It is designed for applications requiring wide input voltage ranges and low output currents.  
- Features include adjustable output voltage, current limiting, and thermal shutdown protection.  

### **Features:**
- **Wide Input Voltage Range (3.5V to 60V)** – Suitable for automotive and industrial applications.  
- **Integrated Power Switch** – Simplifies design and reduces external component count.  
- **Adjustable Output Voltage** – Set via external resistors.  
- **Low Quiescent Current (200µA)** – Improves efficiency at light loads.  
- **Current Mode Control** – Ensures stable operation and fast transient response.  
- **Thermal Shutdown Protection** – Prevents damage from overheating.  
- **Soft-Start Functionality** – Reduces inrush current during startup.  

This regulator is commonly used in automotive, industrial, and battery-powered systems requiring efficient step-down conversion.

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