Current Regulated Switched Capacitor LED Supply with Analog and PWM Brightness Control The LM2794TLX is a triple-output charge pump LED driver manufactured by National Semiconductor (NS).  

### **Specifications:**  
- **Input Voltage Range:** 2.7V to 5.5V  
- **Output Current:** Up to 30mA per channel (adjustable)  
- **Number of Outputs:** 3 (triple LED driver)  
- **Efficiency:** Up to 90%  
- **Switching Frequency:** 1MHz (typical)  
- **Package:** Thin SOT-23 (6-pin)  
- **Operating Temperature Range:** -40°C to +85°C  

### **Descriptions:**  
The LM2794TLX is a compact, high-efficiency charge pump designed to drive three white LEDs with uniform brightness. It uses a 1x/1.5x charge pump architecture to optimize power efficiency and minimize external component count.  

### **Features:**  
- **Automatic Mode Switching:** Switches between 1x and 1.5x modes for optimal efficiency.  
- **PWM Dimming Control:** Supports brightness adjustment via PWM input.  
- **Low Dropout Operation:** Maintains regulation even with low input voltage.  
- **No External Inductors Required:** Simplifies PCB design.  
- **Thermal Shutdown Protection:** Prevents overheating.  
- **Small Footprint:** Ideal for space-constrained applications like mobile devices.  

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

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