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LTC3851IUD#PBF from LINEAR

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LTC3851IUD#PBF

Manufacturer: LINEAR

Synchronous Step-Down Switching Regulator Controller

Partnumber Manufacturer Quantity Availability
LTC3851IUD#PBF,LTC3851IUDPBF LINEAR 1249 In Stock

Description and Introduction

Synchronous Step-Down Switching Regulator Controller The LTC3851IUD#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  
- **Switching Frequency Range:** 50kHz to 900kHz  
- **Maximum Duty Cycle:** 98%  
- **Operating Temperature Range:** -40°C to 125°C  
- **Package:** 28-Lead QFN (5mm x 5mm)  
- **Topology:** Synchronous Buck Controller  
- **Control Method:** Current Mode Control  
- **Efficiency:** Up to 95%  
- **Phase-Lockable Frequency Range:** 75kHz to 850kHz  

### **Descriptions:**  
The LTC3851IUD#PBF is designed for high-efficiency, high-power density DC/DC converter applications. It features a constant-frequency current-mode architecture for stable operation and fast transient response. The device supports multi-phase operation and includes programmable current limiting, soft-start, and tracking capabilities.  

### **Features:**  
- Wide input voltage range (4.5V to 38V)  
- Adjustable output voltage (0.8V to 5.5V)  
- Programmable fixed or synchronizable switching frequency (50kHz to 900kHz)  
- Precision 0.8V reference (±1% over temperature)  
- Differential remote sensing for accurate output regulation  
- Adjustable current limit  
- Programmable soft-start  
- Power good output indicator  
- Phase-lockable oscillator  
- Low shutdown current (<1µA)  
- Thermal shutdown protection  

This information is based solely on the manufacturer's datasheet for the LTC3851IUD#PBF.

Application Scenarios & Design Considerations

Synchronous Step-Down Switching Regulator Controller

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