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LM4902LD from NS,National Semiconductor

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LM4902LD

Manufacturer: NS

265mW at 3.3V Supply Audio Power Amplifier with Shutdown Mode

Partnumber Manufacturer Quantity Availability
LM4902LD NS 300 In Stock

Description and Introduction

265mW at 3.3V Supply Audio Power Amplifier with Shutdown Mode The LM4902LD is a manufacturer by National Semiconductor (NS). Here are its specifications, descriptions, and features:

### **Specifications:**  
- **Type:** Audio Power Amplifier  
- **Output Power:** 1.1W per channel into 8Ω (at 5V)  
- **Supply Voltage Range:** 2.2V to 5.5V  
- **THD+N (Total Harmonic Distortion + Noise):** 1% (typical at 1kHz, 1W into 8Ω)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 8-pin LLP (Leadless Leadframe Package)  

### **Descriptions:**  
- The LM4902LD is a dual-channel, bridge-tied load (BTL) audio power amplifier designed for portable applications.  
- It operates from a single supply and is optimized for driving speakers with minimal external components.  

### **Features:**  
- **Low Quiescent Current:** 2.6mA (typical)  
- **Shutdown Current:** <1µA  
- **Improved PSRR (Power Supply Rejection Ratio):** Reduces noise from power supply variations  
- **Thermal Shutdown Protection:** Prevents damage from overheating  
- **Short-Circuit Protection:** Safeguards against output faults  
- **Space-Saving Package:** 8-pin LLP (3mm x 3mm)  

This information is based on the manufacturer's datasheet.

Application Scenarios & Design Considerations

265mW at 3.3V Supply Audio Power Amplifier with Shutdown Mode

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