Current Regulated Switched Capacitor LED Supply with Analog and PWM Brightness Control The LM2795BL is a charge pump-based LED driver manufactured by National Semiconductor (NSC).  

### **Specifications:**  
- **Input Voltage Range:** 2.7V to 5.5V  
- **Output Current:** Up to 20mA per channel (adjustable)  
- **Number of Channels:** 3 (triple LED driver)  
- **Switching Frequency:** ~1MHz  
- **Efficiency:** Up to 90%  
- **Package:** 10-pin LLP (Leadless Leadframe Package)  
- **Operating Temperature Range:** -40°C to +85°C  

### **Descriptions:**  
- The LM2795BL is a compact, high-efficiency LED driver designed for backlighting applications in portable devices.  
- It uses a fractional charge pump (1.5x) to regulate current, reducing power dissipation.  
- Each of the three channels can be independently controlled via PWM dimming.  

### **Features:**  
- **Low Noise:** No inductors required, minimizing EMI.  
- **PWM Dimming Control:** Allows brightness adjustment via external PWM signal.  
- **Automatic Load Detection:** Disables unused channels to save power.  
- **Thermal Protection:** Prevents overheating.  
- **Small Footprint:** Suitable for space-constrained designs.  

This information is based solely on the manufacturer's datasheet for the LM2795BL.

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