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LTC3546EUFD#PBF from LINEAR

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LTC3546EUFD#PBF

Manufacturer: LINEAR

Dual Synchronous, 3A/1A or 2A/2A Configurable Step-Down DC/DC Regulator

Partnumber Manufacturer Quantity Availability
LTC3546EUFD#PBF,LTC3546EUFDPBF LINEAR 35 In Stock

Description and Introduction

Dual Synchronous, 3A/1A or 2A/2A Configurable Step-Down DC/DC Regulator The LTC3546EUFD#PBF is a dual-channel synchronous step-down DC/DC converter manufactured by Linear Technology (now part of Analog Devices). Below are its key specifications, descriptions, and features:

### **Specifications:**
- **Input Voltage Range:** 2.25V to 5.5V  
- **Output Voltage Range:** 0.6V to 5V (adjustable)  
- **Output Current per Channel:** Up to 1.5A  
- **Switching Frequency:** 2.25MHz (fixed)  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** 28-Lead QFN (4mm x 5mm)  

### **Descriptions:**
- **Dual-Channel Operation:** Two independent step-down regulators in a single package.  
- **Synchronous Rectification:** Improves efficiency by reducing power loss.  
- **Low Dropout Operation:** Allows output voltage close to input voltage.  
- **Current Mode Control:** Ensures fast transient response and stable operation.  
- **Power Good Indicator:** Monitors output voltage status.  

### **Features:**
- **Ultra-Fast Transient Response:** Minimizes output capacitance requirements.  
- **Programmable Soft-Start:** Reduces inrush current during startup.  
- **Low Quiescent Current:** 50μA per channel in Burst Mode® operation.  
- **Short-Circuit Protection:** Prevents damage during fault conditions.  
- **Synchronizable Switching Frequency:** Reduces noise interference.  
- **Thermal Shutdown:** Protects the device from overheating.  

This device is designed for applications requiring high efficiency and compact power solutions, such as portable electronics, industrial systems, and distributed power supplies.

Application Scenarios & Design Considerations

Dual Synchronous, 3A/1A or 2A/2A Configurable Step-Down DC/DC Regulator
Partnumber Manufacturer Quantity Availability
LTC3546EUFD#PBF,LTC3546EUFDPBF LT 50 In Stock

Description and Introduction

Dual Synchronous, 3A/1A or 2A/2A Configurable Step-Down DC/DC Regulator The LTC3546EUFD#PBF is a high-efficiency, dual-channel synchronous step-down DC/DC converter manufactured by Linear Technology (now part of Analog Devices).  

### **Specifications:**  
- **Input Voltage Range:** 2.25V to 5.5V  
- **Output Voltage Range:** 0.6V to VIN (adjustable)  
- **Output Current:** Up to 600mA per channel (1.2A total)  
- **Switching Frequency:** 2.25MHz (fixed)  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 16-Lead QFN (3mm × 3mm)  
- **Features:**  
  - Dual independent synchronous buck regulators  
  - Low quiescent current (30µA per channel)  
  - Power-saving Burst Mode® operation  
  - Internal soft-start  
  - Short-circuit protection  
  - Thermal shutdown  
  - 100% duty cycle capability  

### **Description:**  
The LTC3546EUFD#PBF is designed for portable applications requiring high efficiency and compact power solutions. It integrates two synchronous step-down regulators with low dropout operation, making it suitable for battery-powered devices.  

### **Features:**  
- **Dual Independent Outputs:** Allows separate voltage regulation for two loads.  
- **Burst Mode Operation:** Enhances efficiency at light loads.  
- **Small Footprint:** QFN package saves board space.  
- **Low Noise:** Constant-frequency operation minimizes EMI.  
- **Fast Transient Response:** Maintains stable output under load changes.  

This device is commonly used in smartphones, tablets, portable medical devices, and other battery-operated electronics.  

(Note: All information is based on the manufacturer's datasheet.)

Application Scenarios & Design Considerations

Dual Synchronous, 3A/1A or 2A/2A Configurable Step-Down DC/DC Regulator

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