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LTC3850IGN#PBF from LINEAR

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LTC3850IGN#PBF

Manufacturer: LINEAR

Dual, 2-Phase Synchronous Step-Down Switching Controller

Partnumber Manufacturer Quantity Availability
LTC3850IGN#PBF,LTC3850IGNPBF LINEAR 11106 In Stock

Description and Introduction

Dual, 2-Phase Synchronous Step-Down Switching Controller The LTC3850IGN#PBF is a high-performance synchronous step-down switching regulator controller manufactured by Linear Technology (now part of Analog Devices).  

### **Specifications:**  
- **Input Voltage Range:** 4.5V to 38V  
- **Output Voltage Range:** 0.8V to 5.5V (adjustable)  
- **Switching Frequency Range:** 50kHz to 900kHz (programmable)  
- **Maximum Duty Cycle:** 98%  
- **Operating Temperature Range:** -40°C to 85°C  
- **Package:** 28-Lead SSOP  
- **Topology:** Synchronous Buck Controller  
- **Current Limit:** Adjustable  
- **Efficiency:** Up to 95%  
- **Phase-Lockable Frequency Range:** 75kHz to 850kHz  

### **Descriptions:**  
The LTC3850IGN#PBF is designed for high-efficiency, high-power step-down DC/DC conversion. It features a constant-frequency current-mode architecture, allowing for stable operation across a wide input voltage range. The controller drives external N-channel MOSFETs and supports multi-phase operation for higher current applications.  

### **Features:**  
- **Wide Input Voltage Range:** 4.5V to 38V  
- **Programmable Frequency:** 50kHz to 900kHz  
- **Adjustable Output Voltage:** 0.8V to 5.5V  
- **Precision 0.8V Reference Voltage (±1%)**  
- **Differential Remote Sensing**  
- **Adjustable Current Limit**  
- **Phase-Lockable Oscillator**  
- **External Synchronization Capability**  
- **Programmable Soft-Start**  
- **Overvoltage and Undervoltage Protection**  
- **Thermal Shutdown Protection**  
- **Low Shutdown Current (<1µA)**  

This controller is ideal for applications requiring high efficiency and precise voltage regulation, such as telecom, industrial, and automotive power systems.

Application Scenarios & Design Considerations

Dual, 2-Phase Synchronous Step-Down Switching Controller

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