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LTC3701 from LT

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LTC3701

Manufacturer: LT

2-Phase, Low Input Voltage, Dual Step-Down DC/DC Controller

Partnumber Manufacturer Quantity Availability
LTC3701 LT 243 In Stock

Description and Introduction

2-Phase, Low Input Voltage, Dual Step-Down DC/DC Controller The LTC3701 is a high-efficiency, monolithic synchronous buck regulator manufactured by Linear Technology (now part of Analog Devices). Below are its key specifications, descriptions, and features:

### **Specifications:**  
- **Input Voltage Range:** 4V to 36V  
- **Output Voltage Range:** 0.8V to 24V (adjustable via external resistors)  
- **Maximum Output Current:** Up to 10A (depending on external components)  
- **Switching Frequency:** 50kHz to 1MHz (adjustable with external resistor)  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package Options:** 16-Lead TSSOP, 20-Lead QFN  

### **Description:**  
The LTC3701 is a synchronous step-down DC/DC converter that integrates high-side and low-side N-channel MOSFETs. It is designed for high-efficiency power conversion in applications requiring wide input voltage ranges. The device features a constant-frequency current-mode architecture for stable operation and fast transient response.  

### **Features:**  
- **Integrated Power MOSFETs** (reduces external component count)  
- **Adjustable Switching Frequency** (50kHz to 1MHz)  
- **Low Quiescent Current** (100µA in shutdown, 1.5mA in operation)  
- **Programmable Soft-Start** (prevents inrush current)  
- **Current-Mode Control** (for excellent line and load regulation)  
- **Overcurrent and Thermal Protection** (enhances reliability)  
- **Synchronizable to External Clock** (reduces noise in multi-converter systems)  
- **Wide Input Voltage Range** (suitable for automotive and industrial applications)  

The LTC3701 is commonly used in telecom, automotive, and industrial power systems where high efficiency and reliability are critical.

Application Scenarios & Design Considerations

2-Phase, Low Input Voltage, Dual Step-Down DC/DC Controller

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