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LM4842MT from NS,National Semiconductor

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LM4842MT

Manufacturer: NS

Stereo 2W Amplifiers with DC Volume Control, Transient-Free Outputs, and Cap-less Headphone Drive

Partnumber Manufacturer Quantity Availability
LM4842MT NS 12 In Stock

Description and Introduction

Stereo 2W Amplifiers with DC Volume Control, Transient-Free Outputs, and Cap-less Headphone Drive The LM4842MT is a manufacturer by National Semiconductor (NS). Here are its specifications, descriptions, and features:

### **Specifications:**  
- **Type:** Audio Power Amplifier  
- **Output Power:** 2.2W per channel (into 4Ω at 5V)  
- **Supply Voltage Range:** 2.7V to 5.5V  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 28-pin TSSOP (Thin Shrink Small Outline Package)  
- **THD+N (Total Harmonic Distortion + Noise):** <1% (typical)  
- **Efficiency:** Up to 90% (Class D operation)  
- **Shutdown Current:** <1µA  

### **Descriptions:**  
The LM4842MT is a stereo audio power amplifier designed for portable applications. It features a Class AB/D operation mode switch, allowing for either high-efficiency (Class D) or low-noise (Class AB) performance. The device includes thermal shutdown and short-circuit protection.  

### **Features:**  
- **Stereo Class AB/D Operation** (switchable)  
- **Low Quiescent Current** (4mA in Class AB mode)  
- **Pop-and-Click Suppression**  
- **Thermal Shutdown Protection**  
- **Short-Circuit Protection**  
- **No External Output Filters Required** (in Class D mode)  
- **Space-Saving 28-Pin TSSOP Package**  

This information is strictly factual based on the manufacturer's datasheet.

Application Scenarios & Design Considerations

Stereo 2W Amplifiers with DC Volume Control, Transient-Free Outputs, and Cap-less Headphone Drive

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