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LM49100GR/NOPB from NS,National Semiconductor

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LM49100GR/NOPB

Manufacturer: NS

Mono Class AB Audio Sub-System with a True-Ground Headphone Amplifier 25-csBGA -40 to 85

Partnumber Manufacturer Quantity Availability
LM49100GR/NOPB,LM49100GRNOPB NS 200 In Stock

Description and Introduction

Mono Class AB Audio Sub-System with a True-Ground Headphone Amplifier 25-csBGA -40 to 85 The LM49100GR/NOPB is a mono bridged audio power amplifier manufactured by National Semiconductor (NS).  

### **Key Specifications:**  
- **Output Power:** 1.1W into 8Ω at 5V (THD+N = 10%)  
- **Supply Voltage Range:** 2.7V to 5.5V  
- **Quiescent Current:** 2.5mA (typical)  
- **Shutdown Current:** 0.1μA (typical)  
- **THD+N:** 0.3% (typical at 1kHz, 1W into 8Ω)  
- **PSRR:** 70dB (typical at 217Hz)  
- **Gain:** Fixed at 6dB (2V/V)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 8-Pin WSON  

### **Descriptions:**  
The LM49100GR/NOPB is designed for portable audio applications, providing high-quality sound with low power consumption. It features a shutdown mode for power savings and operates efficiently from a single supply voltage.  

### **Features:**  
- **Bridged Output (BTL) Configuration** – Eliminates output coupling capacitors  
- **Low Quiescent Current** – Extends battery life  
- **Thermal Shutdown Protection** – Prevents damage from overheating  
- **Click-and-Pop Suppression** – Reduces audible noise during power-up/down  
- **Space-Saving Package** – Suitable for compact designs  

This amplifier is commonly used in mobile phones, portable media players, and other battery-powered audio devices.

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