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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.

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.)

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