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LM3502SQ-44 from NS,National Semiconductor

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LM3502SQ-44

Manufacturer: NS

Step-Up Converter for White LED Applications

Partnumber Manufacturer Quantity Availability
LM3502SQ-44,LM3502SQ44 NS 1228 In Stock

Description and Introduction

Step-Up Converter for White LED Applications The LM3502SQ-44 is a switching regulator manufactured by National Semiconductor (NS). Below are the factual specifications, descriptions, and features from Ic-phoenix technical data files:  

### **Specifications:**  
- **Manufacturer:** National Semiconductor (NS)  
- **Package:** 44-Pin LLP (Leadless Leadframe Package)  
- **Input Voltage Range:** 2.7V to 6V  
- **Output Voltage Range:** Adjustable (via external components)  
- **Output Current:** Up to 2A  
- **Switching Frequency:** 1.6MHz (typical)  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to +85°C  

### **Descriptions:**  
The LM3502SQ-44 is a high-efficiency, step-down DC-DC converter designed for portable and battery-powered applications. It integrates a synchronous rectifier to minimize external components and improve efficiency. The device operates at a fixed frequency and includes features like soft-start, thermal shutdown, and cycle-by-cycle current limiting.  

### **Features:**  
- **High Efficiency Synchronous Buck Converter**  
- **1.6MHz Fixed Switching Frequency**  
- **Adjustable Output Voltage**  
- **Internal Soft-Start**  
- **Cycle-by-Cycle Current Limiting**  
- **Thermal Shutdown Protection**  
- **Low Dropout Operation**  
- **Power-Save Mode for Light Load Efficiency**  

This information is based on the manufacturer's datasheet and technical documentation.

Application Scenarios & Design Considerations

Step-Up Converter for White LED Applications

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