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LTC3851EUD-1#PBF from LINEAR

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LTC3851EUD-1#PBF

Manufacturer: LINEAR

Synchronous Step-Down Switching Regulator Controller

Partnumber Manufacturer Quantity Availability
LTC3851EUD-1#PBF,LTC3851EUD1PBF LINEAR 219 In Stock

Description and Introduction

Synchronous Step-Down Switching Regulator Controller The **LTC3851EUD-1#PBF** is a synchronous step-down DC/DC controller manufactured by **Linear Technology (now part of Analog Devices)**.  

### **Specifications:**  
- **Input Voltage Range:** 4.5V to 38V  
- **Output Voltage Range:** 0.8V to 5V (adjustable)  
- **Switching Frequency:** 50kHz to 900kHz (programmable)  
- **Maximum Output Current:** Up to 20A (with external MOSFETs)  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to 125°C  
- **Package:** 20-Lead QFN (4mm x 5mm)  
- **Control Method:** Current mode control  
- **Features:**  
  - Adjustable soft-start  
  - Power good output  
  - External synchronization capability  
  - Low shutdown current (<1µA)  
  - Overcurrent and overtemperature protection  

### **Descriptions:**  
The LTC3851EUD-1#PBF is a high-performance synchronous buck controller designed for high-efficiency power conversion. It provides precise regulation and fast transient response, making it suitable for a variety of applications, including telecom, industrial, and automotive systems.  

### **Features:**  
- **Wide Input Voltage Range:** Supports 4.5V to 38V input.  
- **Programmable Frequency:** Allows optimization for efficiency or component size.  
- **Current Mode Control:** Ensures stable operation and fast transient response.  
- **Synchronization Capability:** Can sync to an external clock.  
- **Protection Features:** Includes overcurrent, overtemperature, and undervoltage lockout (UVLO).  
- **Low Quiescent Current:** Enhances efficiency in light-load conditions.  

This device is commonly used in power supplies for FPGAs, ASICs, and other high-current digital loads.

Application Scenarios & Design Considerations

Synchronous Step-Down Switching Regulator Controller

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