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LM4873IBLX from NS,National Semiconductor

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LM4873IBLX

Manufacturer: NS

Dual 2.1W Audio Amplifier Plus Stereo Headphone Function

Partnumber Manufacturer Quantity Availability
LM4873IBLX NS 2050 In Stock

Description and Introduction

Dual 2.1W Audio Amplifier Plus Stereo Headphone Function The LM4873IBLX is a mono bridged audio power amplifier manufactured by National Semiconductor (NS).  

**Specifications:**  
- **Output Power:** 3W (into 4Ω at 5V)  
- **Supply Voltage Range:** 2.0V to 5.5V  
- **THD+N (Total Harmonic Distortion + Noise):** 1% (typical at 1W into 4Ω)  
- **Quiescent Current:** 2.5mA (typical)  
- **Shutdown Current:** 0.01μA (typical)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 8-pin LLP (Leadless Leadframe Package)  

**Descriptions and Features:**  
- Designed for battery-powered applications such as mobile phones, PDAs, and portable electronics.  
- Features a bridge-tied load (BTL) configuration for higher output power without requiring output coupling capacitors.  
- Includes a low-power consumption shutdown mode.  
- Internal thermal shutdown protection.  
- Unity-gain stable, eliminating the need for external gain-setting resistors.  
- Improved pop-and-click suppression circuitry for reduced noise during power-up and shutdown.  

The LM4873IBLX is optimized for space-constrained applications due to its small package size and minimal external component requirements.

Application Scenarios & Design Considerations

Dual 2.1W Audio Amplifier Plus Stereo Headphone Function

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