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LP3943 from NS,National Semiconductor

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LP3943

Manufacturer: NS

RGB/White/Blue 16-LED Fun Light Driver

Partnumber Manufacturer Quantity Availability
LP3943 NS 240 In Stock

Description and Introduction

RGB/White/Blue 16-LED Fun Light Driver The LP3943 is a Power Management IC (PMIC) manufactured by Texas Instruments (NS).  

### **Key Specifications:**  
- **Function:** LED Driver  
- **Topology:** Step-Down (Buck) Converter  
- **Input Voltage Range:** 2.7V to 5.5V  
- **Output Current:** Up to 150mA per channel (dual-channel)  
- **Switching Frequency:** 1MHz (typical)  
- **Efficiency:** Up to 90%  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 16-pin WQFN  

### **Descriptions & Features:**  
- Dual-channel LED driver with independent current control.  
- Integrated PWM dimming control for brightness adjustment.  
- Low dropout operation for efficient power conversion.  
- Thermal shutdown and overcurrent protection.  
- I²C-compatible interface for digital control.  
- Small footprint, suitable for space-constrained applications.  

The LP3943 is commonly used in portable electronics, backlighting, and indicator lighting applications.  

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