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LT1681ESW from LINEAR

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LT1681ESW

Manufacturer: LINEAR

Dual Transistor Synchronous Forward Controller

Partnumber Manufacturer Quantity Availability
LT1681ESW LINEAR 26 In Stock

Description and Introduction

Dual Transistor Synchronous Forward Controller The LT1681ESW is a high-speed, high-voltage, synchronous step-down switching regulator controller manufactured by Linear Technology (now part of Analog Devices).  

### **Specifications:**  
- **Input Voltage Range:** 4V to 60V  
- **Output Voltage Range:** Adjustable down to 1.25V  
- **Switching Frequency:** Up to 200kHz  
- **Maximum Duty Cycle:** 95%  
- **Peak Output Current:** Up to 10A (with external MOSFETs)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** SOIC-16 (Wide)  

### **Descriptions:**  
- Designed for high-efficiency step-down (buck) DC/DC conversion.  
- Uses external N-channel MOSFETs for synchronous rectification.  
- Features adjustable soft-start and current limit.  
- Includes undervoltage lockout (UVLO) protection.  
- Suitable for industrial, automotive, and telecom applications.  

### **Features:**  
- Wide input voltage range (4V to 60V).  
- Synchronous rectification for improved efficiency.  
- Adjustable switching frequency.  
- Precision 1.25V reference voltage.  
- Programmable soft-start.  
- Current mode control for fast transient response.  
- Thermal shutdown protection.  

This information is based on the LT1681ESW datasheet from Linear Technology.

Application Scenarios & Design Considerations

Dual Transistor Synchronous Forward Controller
Partnumber Manufacturer Quantity Availability
LT1681ESW LT 149 In Stock

Description and Introduction

Dual Transistor Synchronous Forward Controller The LT1681ESW is a high voltage, high efficiency switching regulator controller manufactured by Linear Technology (now part of Analog Devices).  

### **Specifications:**  
- **Input Voltage Range:** 4V to 60V  
- **Output Voltage:** Adjustable  
- **Switching Frequency:** 100kHz to 500kHz (adjustable)  
- **Maximum Duty Cycle:** 96%  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** SO-16 (Wide)  
- **Current Limit:** Adjustable  
- **Soft-Start Capability:** Yes  
- **Synchronous Rectification Support:** Yes  

### **Descriptions:**  
The LT1681ESW is a current-mode PWM controller designed for high voltage DC/DC converter applications. It provides high efficiency and flexibility in power supply designs, supporting both step-down (buck) and step-up (boost) configurations.  

### **Features:**  
- Wide input voltage range (4V to 60V)  
- Adjustable switching frequency (100kHz to 500kHz)  
- High duty cycle operation (up to 96%)  
- Programmable current limit  
- Synchronous rectification for improved efficiency  
- Soft-start functionality  
- Low shutdown current (<100µA)  
- Thermal shutdown protection  

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

Application Scenarios & Design Considerations

Dual Transistor Synchronous Forward Controller

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