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LM2796TLX from NS,NS,National Semiconductor

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LM2796TLX

Manufacturer: NS,NS

Dual-Display White LED Driver with 3/2x Switched Capacitor Boost

Partnumber Manufacturer Quantity Availability
LM2796TLX NS,NS 50 In Stock

Description and Introduction

Dual-Display White LED Driver with 3/2x Switched Capacitor Boost The LM2796TLX is a charge pump-based white LED driver manufactured by National Semiconductor (NS).  

### **Specifications:**  
- **Input Voltage Range:** 2.7V to 5.5V  
- **Output Current:** Up to 30mA per LED (adjustable)  
- **Number of LED Channels:** 2  
- **Efficiency:** Up to 90%  
- **Switching Frequency:** 1MHz (typical)  
- **Dimming Control:** PWM (Pulse-Width Modulation)  
- **Package:** 10-pin LLP (Leadless Leadframe Package)  
- **Operating Temperature Range:** -40°C to +85°C  

### **Descriptions:**  
The LM2796TLX is a compact, high-efficiency LED driver designed for backlighting applications in portable devices. It uses a charge pump architecture to provide regulated current to two white LEDs. The device supports PWM dimming for brightness control and operates efficiently across a wide input voltage range.  

### **Features:**  
- **High Efficiency Charge Pump:** Reduces power loss with 1x, 1.5x, and 2x gain modes.  
- **Independent LED Current Control:** Adjustable via external resistors.  
- **Low Dropout Operation:** Maintains regulation even with low input voltage.  
- **Thermal Protection:** Prevents overheating.  
- **Small Footprint:** 10-pin LLP package saves board space.  
- **No External Inductors Required:** Simplifies design.  

This information is based on the manufacturer's datasheet.

Application Scenarios & Design Considerations

Dual-Display White LED Driver with 3/2x Switched Capacitor Boost

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