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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.

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.

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