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LTC3547EDDB from LINEAR

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LTC3547EDDB

Manufacturer: LINEAR

Dual Monolithic 300mA Synchronous Step-Down Regulator

Partnumber Manufacturer Quantity Availability
LTC3547EDDB LINEAR 187 In Stock

Description and Introduction

Dual Monolithic 300mA Synchronous Step-Down Regulator The LTC3547EDDB is a dual-channel synchronous step-down DC/DC converter manufactured by Linear Technology (now part of Analog Devices).  

### **Specifications:**  
- **Input Voltage Range:** 2.5V to 5.5V  
- **Output Voltage Range:** 0.6V to 5V (adjustable)  
- **Output Current:** Up to 800mA per channel (1.6A total)  
- **Switching Frequency:** 2.25MHz (typical)  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** DFN-10 (3mm × 3mm)  

### **Descriptions & Features:**  
- **Dual Independent Channels:** Two synchronous buck regulators in a single package.  
- **High Efficiency:** Uses internal low RDS(ON) switches for minimal power loss.  
- **Constant-Frequency Operation:** 2.25MHz switching frequency allows for small external components.  
- **Low Quiescent Current:** 30μA per channel in Burst Mode operation.  
- **Power Good Output:** Monitors each regulator’s output.  
- **Soft-Start & Current Limit:** Prevents inrush current and provides overload protection.  
- **Synchronizable:** Can be synchronized to an external clock.  
- **Compact Design:** DFN-10 package with exposed pad for thermal performance.  

The LTC3547EDDB is designed for portable applications requiring high efficiency and compact power solutions.

Application Scenarios & Design Considerations

Dual Monolithic 300mA Synchronous Step-Down Regulator
Partnumber Manufacturer Quantity Availability
LTC3547EDDB LT 11937 In Stock

Description and Introduction

Dual Monolithic 300mA Synchronous Step-Down Regulator The LTC3547EDDB is a dual-channel synchronous step-down DC/DC converter manufactured by Linear Technology (now part of Analog Devices).  

### **Specifications:**  
- **Input Voltage Range:** 2.5V to 5.5V  
- **Output Voltage Range:** 0.6V to 5V (adjustable)  
- **Output Current:** Up to 600mA per channel  
- **Switching Frequency:** 2.25MHz (fixed)  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** DFN-10 (3mm × 3mm)  

### **Descriptions:**  
- Dual-channel synchronous buck regulator with independent control.  
- Operates in Burst Mode® for high efficiency at light loads.  
- Low quiescent current (30µA per channel).  
- Internal soft-start and current limit protection.  
- Supports 100% duty cycle for low dropout operation.  

### **Features:**  
- **Synchronous Rectification:** Improves efficiency.  
- **Burst Mode Operation:** Enhances light-load efficiency.  
- **Short-Circuit Protection:** Prevents damage during faults.  
- **Low Dropout Operation:** Maintains regulation near input voltage.  
- **Small Footprint:** DFN package for space-constrained applications.  

This information is based solely on the manufacturer's datasheet.

Application Scenarios & Design Considerations

Dual Monolithic 300mA Synchronous Step-Down Regulator

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