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LM27966SQX from NS,National Semiconductor

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LM27966SQX

Manufacturer: NS

White LED Driver with I2C Compatible Interface

Partnumber Manufacturer Quantity Availability
LM27966SQX NS 29399 In Stock

Description and Introduction

White LED Driver with I2C Compatible Interface The LM27966SQX is a dual-mode charge pump designed by National Semiconductor (NS). Below are its specifications, descriptions, and features based on factual information:

### **Specifications:**  
- **Manufacturer:** National Semiconductor (NS)  
- **Type:** Dual-Mode Charge Pump  
- **Input Voltage Range:** 2.7V to 5.5V  
- **Output Current:** Up to 120mA  
- **Switching Frequency:** 1MHz (typical)  
- **Efficiency:** Up to 90%  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 10-Pin LLP (Leadless Leadframe Package)  

### **Descriptions:**  
The LM27966SQX is a high-efficiency, dual-mode charge pump designed for driving white LEDs in backlight applications. It supports both 1x and 1.5x charge pump modes, optimizing efficiency based on input voltage and LED forward voltage requirements.  

### **Features:**  
- **Dual-Mode Operation:** Automatically switches between 1x and 1.5x modes for optimal efficiency.  
- **High Efficiency:** Up to 90% efficiency to extend battery life.  
- **Low Noise:** Minimizes output ripple for stable LED current.  
- **Integrated Current Sinks:** Provides accurate LED current matching.  
- **PWM Dimming Control:** Supports brightness adjustment via PWM input.  
- **Thermal Protection:** Includes over-temperature shutdown for reliability.  
- **Small Footprint:** 10-pin LLP package for space-constrained applications.  

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

Application Scenarios & Design Considerations

White LED Driver with I2C Compatible Interface

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