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LM386N-3 from NSC,National Semiconductor

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LM386N-3

Manufacturer: NSC

Low Voltage Audio Power Amplifier

Partnumber Manufacturer Quantity Availability
LM386N-3,LM386N3 NSC 1425 In Stock

Description and Introduction

Low Voltage Audio Power Amplifier The LM386N-3 is a low-voltage audio power amplifier manufactured by National Semiconductor Corporation (NSC). Here are its specifications, descriptions, and features:

### **Specifications:**
- **Supply Voltage Range:** 4V to 12V (LM386N-3 variant optimized for 6V operation)
- **Output Power:** Up to 325 mW (at 6V, 8Ω load, 10% THD)
- **Quiescent Current:** ~4 mA (typical)
- **Voltage Gain:** 20 to 200 (adjustable via external components)
- **Bandwidth:** ~300 kHz
- **Total Harmonic Distortion (THD):** 0.2% (typical at 125 mW, 8Ω)
- **Input Resistance:** 50 kΩ
- **Operating Temperature Range:** 0°C to 70°C
- **Package Type:** 8-pin DIP (Dual In-line Package)

### **Descriptions:**
- The LM386N-3 is a monolithic integrated circuit designed for low-power audio amplification.
- It is commonly used in battery-operated devices, intercoms, AM-FM radio amplifiers, and small audio projects.
- The amplifier is internally compensated to minimize external component requirements.
- It features a built-in gain control (default 20x) that can be increased up to 200x with external resistors and capacitors.

### **Features:**
- Low quiescent power consumption (4 mA typical).
- Wide supply voltage range (4V–12V).
- Minimal external components required.
- Adjustable voltage gain (20 to 200).
- Battery operation compatible.
- No output coupling capacitors needed.
- Short-circuit and thermal protection.

This information is based solely on the manufacturer's datasheet for the LM386N-3 by NSC.

Application Scenarios & Design Considerations

Low Voltage Audio Power Amplifier

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