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LM2796TLX/NOPB from NS,National Semiconductor

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LM2796TLX/NOPB

Manufacturer: NS

Dual-Display White LED Driver with 3/2x Switched Capacitor Boost 18-DSBGA -30 to 85

Partnumber Manufacturer Quantity Availability
LM2796TLX/NOPB,LM2796TLXNOPB NS 247975 In Stock

Description and Introduction

Dual-Display White LED Driver with 3/2x Switched Capacitor Boost 18-DSBGA -30 to 85 The LM2796TLX/NOPB is a dual white LED charge pump with an integrated 1x/1.5x/2x charge pump and two independent current-regulated outputs. It is manufactured by Texas Instruments (formerly National Semiconductor, NS).  

### **Specifications:**  
- **Input Voltage Range:** 2.7V to 5.5V  
- **Output Current:** Up to 32mA per channel (adjustable)  
- **Efficiency:** Up to 90%  
- **Switching Frequency:** 1MHz (typical)  
- **Charge Pump Modes:** 1x, 1.5x, 2x (automatic mode switching)  
- **Current Matching:** ±0.5% (typical) between channels  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 10-pin LLP (3mm x 3mm)  

### **Descriptions:**  
The LM2796TLX/NOPB is designed to drive two white LEDs with high efficiency and precise current matching. It features an automatic charge pump mode selection to optimize efficiency based on input voltage and LED forward voltage.  

### **Features:**  
- Dual regulated current sinks for LED control  
- Automatic mode switching for optimal efficiency  
- Low dropout operation  
- No inductors required  
- Low quiescent current (1.5mA typical)  
- Soft-start to limit inrush current  
- Thermal shutdown protection  

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

Partnumber Manufacturer Quantity Availability
LM2796TLX/NOPB,LM2796TLXNOPB NSC 2123 In Stock

Description and Introduction

Dual-Display White LED Driver with 3/2x Switched Capacitor Boost 18-DSBGA -30 to 85 The LM2796TLX/NOPB is a dual white LED charge pump designed by National Semiconductor (NSC). It provides a regulated current to drive two white LEDs with high efficiency.  

### **Specifications:**  
- **Input Voltage Range:** 2.7V to 5.5V  
- **Output Current:** Up to 32mA per LED (adjustable)  
- **Switching Frequency:** 1MHz (typical)  
- **Efficiency:** Up to 90%  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 10-pin LLP (3mm x 3mm)  

### **Descriptions:**  
- The LM2796TLX/NOPB integrates a charge pump and current regulators to drive two white LEDs efficiently.  
- It features a 1x/1.5x fractional charge pump for optimal power efficiency.  
- Includes an enable pin for power management and dimming control.  

### **Features:**  
- **Dual Output:** Independently drives two white LEDs.  
- **Automatic Mode Switching:** Switches between 1x and 1.5x modes for efficiency.  
- **Low Noise Operation:** Minimizes EMI interference.  
- **Thermal Protection:** Prevents overheating.  
- **Small Footprint:** Suitable for space-constrained applications.  

This device is commonly used in backlighting for LCD displays, keypads, and other portable electronics.

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