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LTC3851EUD#PBF from LINEAR

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LTC3851EUD#PBF

Manufacturer: LINEAR

Synchronous Step-Down Switching Regulator Controller

Partnumber Manufacturer Quantity Availability
LTC3851EUD#PBF,LTC3851EUDPBF LINEAR 3671 In Stock

Description and Introduction

Synchronous Step-Down Switching Regulator Controller The **LTC3851EUD#PBF** is a synchronous step-down switching regulator controller manufactured by **Linear Technology (now part of Analog Devices)**.  

### **Key Specifications:**  
- **Input Voltage Range:** 4.5V to 38V  
- **Output Voltage Range:** 0.8V to 5V (adjustable)  
- **Switching Frequency:** Adjustable from 50kHz to 900kHz  
- **Maximum Output Current:** Supports high current with external MOSFETs  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** 16-Lead QFN (4mm × 4mm)  

### **Descriptions:**  
The LTC3851EUD#PBF is a high-performance, synchronous step-down DC/DC controller designed for high-efficiency power conversion. It drives external N-channel MOSFETs and provides precise output voltage regulation. It features a constant-frequency current-mode architecture and can be synchronized to an external clock.  

### **Features:**  
- **Wide Input Voltage Range:** Supports 4.5V to 38V operation.  
- **Adjustable Output Voltage:** Programmable from 0.8V to 5V.  
- **High Efficiency:** Uses synchronous rectification for improved efficiency.  
- **Programmable Frequency:** Adjustable from 50kHz to 900kHz.  
- **Phase-Lockable Oscillator:** Allows synchronization to an external clock.  
- **Precision Reference:** ±1% voltage accuracy over temperature.  
- **Current Mode Control:** Ensures fast transient response.  
- **Power Good Indicator:** Monitors output voltage status.  
- **Thermal Shutdown:** Protects against overheating.  

This device is commonly used in industrial, automotive, and telecom applications requiring high-efficiency power conversion.

Application Scenarios & Design Considerations

Synchronous Step-Down Switching Regulator Controller

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