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LM4670ITL from NS,National Semiconductor

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LM4670ITL

Manufacturer: NS

Filterless High Efficiency 3W Switching Audio Amplifier

Partnumber Manufacturer Quantity Availability
LM4670ITL NS 910 In Stock

Description and Introduction

Filterless High Efficiency 3W Switching Audio Amplifier The LM4670ITL is a mono 2.65W Class D audio power amplifier manufactured by National Semiconductor (NS).  

**Specifications:**  
- **Output Power:** 2.65W into 4Ω at 5V  
- **Efficiency:** Up to 90%  
- **Supply Voltage Range:** 2.4V to 5.5V  
- **THD+N:** <1% at 1W into 4Ω  
- **Shutdown Current:** <1µA  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 10-pin LLP (3mm x 3mm)  

**Descriptions and Features:**  
- **Class D Operation:** Provides high efficiency with low power dissipation.  
- **Filterless Operation:** Eliminates the need for external LC filters.  
- **Low Quiescent Current:** 2.5mA typical.  
- **Pop-and-Click Suppression:** Minimizes noise during power-up/down.  
- **Thermal Shutdown Protection:** Prevents damage from overheating.  
- **Short-Circuit Protection:** Enhances reliability.  
- **Small Footprint:** Suitable for space-constrained applications.  

This amplifier is commonly used in portable devices such as smartphones, tablets, and portable media players.

Application Scenarios & Design Considerations

Filterless High Efficiency 3W Switching Audio Amplifier

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