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LTC3731IG from LTC

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LTC3731IG

Manufacturer: LTC

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

Partnumber Manufacturer Quantity Availability
LTC3731IG LTC 40 In Stock

Description and Introduction

3-Phase, 600kHz, Synchronous Buck Switching Regulator Controller The LTC3731IG is a synchronous step-down switching regulator controller manufactured by Linear Technology (now part of Analog Devices).  

### **Specifications:**  
- **Input Voltage Range:** 4V to 36V  
- **Output Voltage Range:** 0.8V to 5.5V  
- **Switching Frequency:** Adjustable from 50kHz to 600kHz  
- **Maximum Output Current:** Up to 20A (with external MOSFETs)  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to 85°C  
- **Package:** 28-Lead SSOP  

### **Descriptions:**  
The LTC3731IG is a high-performance, dual-phase synchronous buck controller designed for high-current applications. It uses a constant-frequency, current-mode architecture for precise regulation and fast transient response. The dual-phase operation reduces input and output ripple, improving efficiency and thermal performance.  

### **Features:**  
- Dual-phase operation for reduced input/output ripple  
- Adjustable switching frequency (50kHz to 600kHz)  
- Current-mode control for excellent transient response  
- Programmable soft-start  
- Overcurrent and overtemperature protection  
- Differential remote sensing for accurate output regulation  
- Power-good indicator  

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

Application Scenarios & Design Considerations

3-Phase, 600kHz, Synchronous Buck Switching Regulator Controller
Partnumber Manufacturer Quantity Availability
LTC3731IG LT 1153 In Stock

Description and Introduction

3-Phase, 600kHz, Synchronous Buck Switching Regulator Controller The LTC3731IG is a dual, two-phase synchronous buck switching regulator controller manufactured by Linear Technology (now part of Analog Devices).  

### **Specifications:**  
- **Input Voltage Range:** 4.5V to 36V  
- **Output Voltage Range:** 0.8V to 5.5V (adjustable)  
- **Switching Frequency:** 50kHz to 900kHz (adjustable)  
- **Phase-Shifted Operation:** Reduces input ripple  
- **Efficiency:** Up to 95%  
- **Current Mode Control:** Ensures fast transient response  
- **Dual Outputs:** Independent or tracking configurations  
- **Package:** 28-Lead SSOP  

### **Features:**  
- **Dual-Phase Operation:** Reduces input and output capacitor requirements  
- **Adjustable Frequency:** Allows optimization for efficiency or component size  
- **Precision Reference:** ±1% over temperature  
- **Soft-Start:** Prevents inrush current issues  
- **Overcurrent Protection:** Prevents damage during faults  
- **Power Good Output:** Monitors regulator status  
- **Synchronizable:** Can sync to an external clock  

This device is designed for high-efficiency, multi-phase DC/DC conversion in applications like telecom, industrial, and computing systems.

Application Scenarios & Design Considerations

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

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