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LTC3731CG from LT

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LTC3731CG

Manufacturer: LT

3-Phase, 600kHz, Synchronous Buck Switching Regulator Controller

Partnumber Manufacturer Quantity Availability
LTC3731CG LT 3258 In Stock

Description and Introduction

3-Phase, 600kHz, Synchronous Buck Switching Regulator Controller The LTC3731CG is a PolyPhase synchronous step-down switching regulator controller manufactured by Linear Technology (now part of Analog Devices).  

### **Specifications:**  
- **Input Voltage Range:** 4.5V to 36V  
- **Output Voltage Range:** 0.6V to 5.5V  
- **Switching Frequency:** 50kHz to 600kHz (adjustable)  
- **Phase Configurations:** 2-, 3-, or 4-phase operation  
- **Efficiency:** Up to 95%  
- **Current Mode Control:** Provides fast transient response  
- **Operating Temperature Range:** 0°C to 70°C  
- **Package:** 28-Lead SSOP  

### **Descriptions:**  
The LTC3731CG is designed for high-efficiency, high-current applications. It supports PolyPhase operation, reducing input and output ripple currents while improving thermal performance. It includes features like programmable soft-start, current sharing, and overcurrent protection.  

### **Features:**  
- **PolyPhase Operation:** Reduces input/output capacitance and improves efficiency.  
- **Adjustable Frequency:** Allows optimization for efficiency or component size.  
- **Precision Reference:** ±1% output voltage accuracy.  
- **Current Sharing:** Ensures balanced load distribution in multi-phase configurations.  
- **Programmable Soft-Start:** Prevents inrush current at startup.  
- **Overcurrent Protection:** Prevents damage during fault conditions.  
- **Differential Sensing:** Provides accurate remote voltage regulation.  

This information is based on the manufacturer's datasheet. For detailed application notes, refer to official documentation.

Application Scenarios & Design Considerations

3-Phase, 600kHz, Synchronous Buck Switching Regulator Controller
Partnumber Manufacturer Quantity Availability
LTC3731CG LINEAR 123 In Stock

Description and Introduction

3-Phase, 600kHz, Synchronous Buck Switching Regulator Controller The LTC3731CG is a synchronous switching regulator controller manufactured by LINEAR (now part of Analog Devices). Below are its key specifications, descriptions, and features:

### **Specifications:**  
- **Input Voltage Range:** 4.5V to 36V  
- **Output Voltage Range:** 0.8V to 5.5V (adjustable)  
- **Switching Frequency:** Up to 550kHz (programmable)  
- **Operating Temperature Range:** 0°C to 70°C (commercial grade)  
- **Package:** 28-Lead SSOP (Shrink Small Outline Package)  
- **Topology:** Synchronous Buck Controller  
- **Efficiency:** Up to 95%  
- **Current Mode Control:** Yes  
- **Duty Cycle Range:** 0% to 100%  

### **Descriptions:**  
The LTC3731CG is a high-performance synchronous step-down switching regulator controller designed for high-efficiency power conversion. It drives external N-channel MOSFETs and supports a wide input voltage range, making it suitable for various applications, including telecom, industrial, and computing systems.  

### **Features:**  
- **Synchronous Rectification:** Improves efficiency by replacing the diode with a MOSFET.  
- **Programmable Frequency:** Allows optimization for efficiency or component size.  
- **Current Mode Control:** Ensures stable operation and fast transient response.  
- **Soft-Start Function:** Prevents inrush current at startup.  
- **Adjustable Output Voltage:** Set via external resistors.  
- **Wide Input Voltage Range:** Supports 4.5V to 36V operation.  
- **Overcurrent Protection:** Enhances system reliability.  
- **Low Shutdown Current:** <1µA when disabled.  

This information is based solely on the manufacturer's datasheet.

Application Scenarios & Design Considerations

3-Phase, 600kHz, Synchronous Buck Switching Regulator Controller

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