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LM4906LD from NS,National Semiconductor

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LM4906LD

Manufacturer: NS

1W, Bypass-Capacitor-less Audio Power Amplifier with Internal Selectable Gain

Partnumber Manufacturer Quantity Availability
LM4906LD NS 605 In Stock

Description and Introduction

1W, Bypass-Capacitor-less Audio Power Amplifier with Internal Selectable Gain The LM4906LD is a mono bridged audio power amplifier manufactured by National Semiconductor (NS).  

**Specifications:**  
- **Output Power:** 1.1W (typical) into an 8Ω load with a 5V power supply.  
- **Supply Voltage Range:** 2.2V to 5.5V.  
- **Quiescent Current:** 2.6mA (typical) at 3.3V.  
- **Shutdown Current:** 0.1μA (typical).  
- **THD+N (Total Harmonic Distortion + Noise):** 1% (typical) at 1kHz, 1W into 8Ω.  
- **PSRR (Power Supply Rejection Ratio):** 70dB (typical) at 217Hz.  
- **Operating Temperature Range:** -40°C to +85°C.  
- **Package:** 8-pin LLP (Leadless Leadframe Package).  

**Descriptions and Features:**  
- Designed for portable audio applications.  
- Requires minimal external components.  
- Integrated shutdown feature for power saving.  
- Improved PSRR reduces noise from power supply variations.  
- Differential inputs reduce common-mode noise.  
- Internal thermal shutdown protection.  
- Unity-gain stable.  
- RoHS compliant.  

The LM4906LD is optimized for low-voltage operation, making it suitable for battery-powered devices like mobile phones, portable media players, and other consumer electronics.

Application Scenarios & Design Considerations

1W, Bypass-Capacitor-less Audio Power Amplifier with Internal Selectable Gain

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