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LM2792LDX-L from NSC,National Semiconductor

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LM2792LDX-L

Manufacturer: NSC

Current Regulated Switched Capacitor LED Driver with Analog Brightness Control

Partnumber Manufacturer Quantity Availability
LM2792LDX-L,LM2792LDXL NSC 6831 In Stock

Description and Introduction

Current Regulated Switched Capacitor LED Driver with Analog Brightness Control The LM2792LDX-L is a dual white LED charge pump with an integrated 1x/1.5x/2x switch-mode converter, manufactured by National Semiconductor (NSC).  

### **Specifications:**  
- **Input Voltage Range:** 2.7V to 5.5V  
- **Output Current:** Up to 30mA per LED (two independent channels)  
- **Efficiency:** Up to 90%  
- **Switching Frequency:** 1MHz (typical)  
- **Charge Pump Modes:** 1x, 1.5x, 2x (automatic mode switching)  
- **Dimming Control:** PWM or analog dimming  
- **Package:** 10-pin LLP (3mm x 3mm)  
- **Operating Temperature Range:** -40°C to +85°C  

### **Descriptions:**  
The LM2792LDX-L is designed to drive two white LEDs efficiently with minimal external components. It features automatic mode switching to optimize efficiency based on input voltage and LED forward voltage requirements.  

### **Features:**  
- Dual independent LED current sinks  
- Automatic charge pump mode selection  
- Low shutdown current (<1µA)  
- Soft-start to limit inrush current  
- Thermal shutdown protection  
- No inductors required  

This device is commonly used in backlighting applications for portable electronics.

Application Scenarios & Design Considerations

Current Regulated Switched Capacitor LED Driver with Analog Brightness Control

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