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LTC3735EG#TR from LINEAR

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LTC3735EG#TR

Manufacturer: LINEAR

2-Phase, High Efficiency DC/DC Controller for Intel Mobile CPUs

Partnumber Manufacturer Quantity Availability
LTC3735EG#TR,LTC3735EGTR LINEAR 1291 In Stock

Description and Introduction

2-Phase, High Efficiency DC/DC Controller for Intel Mobile CPUs The LTC3735EG#TR is a PolyPhase synchronous step-down switching regulator controller manufactured by Linear Technology (now part of Analog Devices). Below are its key specifications, descriptions, and features:

### **Specifications:**
- **Input Voltage Range:** 4.5V to 36V  
- **Output Voltage Range:** 0.6V to 5.5V  
- **Switching Frequency:** 50kHz to 850kHz (adjustable)  
- **Number of Phases:** 2-phase operation (expandable to 12-phase)  
- **Current Mode Control:** Yes  
- **Maximum Duty Cycle:** 100%  
- **Operating Temperature Range:** -40°C to 85°C  
- **Package:** 28-Lead SSOP  

### **Descriptions:**
The LTC3735EG#TR is a high-performance, PolyPhase synchronous step-down DC/DC controller designed for high-current applications. It uses current-mode control for excellent transient response and allows for multi-phase operation to reduce input and output ripple current. The device supports interleaved operation, improving efficiency and thermal performance.

### **Features:**
- **PolyPhase Operation:** Supports 2-phase operation (expandable to 12-phase) for reduced input/output ripple.  
- **Adjustable Frequency:** 50kHz to 850kHz (synchronizable to an external clock).  
- **Precision Reference:** 0.6V ±1% reference voltage.  
- **Current Mode Control:** Ensures fast transient response and current sharing between phases.  
- **Programmable Soft-Start:** Reduces inrush current during startup.  
- **Overcurrent Protection:** Uses MOSFET RDS(ON) sensing for accurate current limiting.  
- **Wide Input Range:** Operates from 4.5V to 36V, suitable for automotive and industrial applications.  
- **Low Shutdown Current:** <1µA in shutdown mode.  
- **Thermal Protection:** Prevents overheating.  

This device is commonly used in high-power applications such as servers, telecom systems, and industrial power supplies.

Application Scenarios & Design Considerations

2-Phase, High Efficiency DC/DC Controller for Intel Mobile CPUs

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