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LT3781EG from LINEAR

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LT3781EG

Manufacturer: LINEAR

Bootstrap Start Dual Transistor Synchronous Forward Controller

Partnumber Manufacturer Quantity Availability
LT3781EG LINEAR 100 In Stock

Description and Introduction

Bootstrap Start Dual Transistor Synchronous Forward Controller The LT3781EG is a high voltage, high power, current mode switching regulator controller manufactured by Linear Technology (now part of Analog Devices).  

### **Specifications:**  
- **Input Voltage Range:** 4.5V to 60V  
- **Output Voltage Range:** Up to 60V  
- **Switching Frequency:** Adjustable from 100kHz to 500kHz  
- **Peak Current Sense Threshold:** 100mV  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** 16-Lead SSOP  

### **Descriptions:**  
- The LT3781EG is designed for high power boost, flyback, SEPIC, and forward converter applications.  
- It features a current mode architecture for improved loop response and simplified compensation.  
- The device includes a high voltage gate driver capable of driving N-channel MOSFETs.  
- It provides cycle-by-cycle current limiting and soft-start functionality.  

### **Features:**  
- Wide input voltage range (4.5V to 60V)  
- Adjustable switching frequency (100kHz to 500kHz)  
- Integrated high voltage gate driver  
- Programmable soft-start  
- Current mode control for stable operation  
- Low shutdown current (<1µA)  
- Thermal shutdown protection  

This information is sourced from the manufacturer's datasheet.

Application Scenarios & Design Considerations

Bootstrap Start Dual Transistor Synchronous Forward Controller
Partnumber Manufacturer Quantity Availability
LT3781EG LT 318 In Stock

Description and Introduction

Bootstrap Start Dual Transistor Synchronous Forward Controller The LT3781EG is a high voltage, high current step-up (boost) switching regulator controller manufactured by Linear Technology (now part of Analog Devices).  

### **Specifications:**  
- **Input Voltage Range:** 3V to 30V  
- **Output Voltage:** Up to 100V (adjustable)  
- **Switch Current Limit:** Programmable up to 10A  
- **Operating Frequency:** 100kHz to 500kHz (adjustable)  
- **Duty Cycle:** Up to 95%  
- **Efficiency:** Up to 95%  
- **Package:** 20-Lead TSSOP  

### **Descriptions:**  
The LT3781EG is designed for high-power boost, flyback, SEPIC, and isolated converter applications. It features a wide input voltage range and can drive an external N-channel MOSFET for high-current switching. The device includes adjustable current limit, soft-start, and frequency synchronization capabilities.  

### **Features:**  
- **Wide Input Range:** Operates from 3V to 30V  
- **High Output Voltage Capability:** Up to 100V  
- **Programmable Current Limit:** Up to 10A  
- **Adjustable Switching Frequency:** 100kHz to 500kHz  
- **Synchronizable to External Clock**  
- **Soft-Start Function**  
- **Low Shutdown Current:** <1µA  
- **Thermal Shutdown Protection**  

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

Application Scenarios & Design Considerations

Bootstrap Start Dual Transistor Synchronous Forward Controller

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