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LTC3547EDDB from LINEAR

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15.625ms

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.

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.

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