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LM2795BLX from NS,National Semiconductor

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LM2795BLX

Manufacturer: NS

Current Regulated Switched Capacitor LED Supply with Analog and PWM Brightness Control

Partnumber Manufacturer Quantity Availability
LM2795BLX NS 6000 In Stock

Description and Introduction

Current Regulated Switched Capacitor LED Supply with Analog and PWM Brightness Control The LM2795BLX is a dual white LED charge pump with an integrated 1x/1.5x/2x charge pump and low-dropout current regulators, manufactured by National Semiconductor (NS).  

### **Specifications:**  
- **Input Voltage Range:** 2.7V to 5.5V  
- **Output Current:** Up to 32mA per LED (adjustable)  
- **Efficiency:** Up to 90% (depending on mode)  
- **Charge Pump Modes:** 1x, 1.5x, 2x  
- **Switching Frequency:** 1MHz (typical)  
- **Dimming Control:** PWM or analog  
- **Package:** 10-pin LLP (3mm x 3mm)  
- **Operating Temperature Range:** -40°C to +85°C  

### **Descriptions:**  
The LM2795BLX is designed to drive up to two white LEDs with regulated current, ensuring uniform brightness. It includes an automatic charge pump mode selection to optimize efficiency based on input voltage and LED forward voltage.  

### **Features:**  
- Automatic mode switching (1x/1.5x/2x)  
- Low dropout current regulators  
- Soft-start to reduce inrush current  
- Low quiescent current (0.5mA typical)  
- Thermal shutdown protection  
- No external inductors required  

This information is sourced from the manufacturer's datasheet and technical documentation.

Application Scenarios & Design Considerations

Current Regulated Switched Capacitor LED Supply with Analog and PWM Brightness Control

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