LM4666SD/NOPB

Product Overview

LM4666SD/NOPB belongs to the category of audio amplifiers. It is commonly used in audio applications such as portable devices, smartphones, tablets, and other consumer electronics. The LM4666SD/NOPB is known for its compact package, high efficiency, and low power consumption. It is available in a small outline package (SOP) and comes in quantities suitable for mass production.

Specifications

• Power Supply Voltage: 2.7V to 5.5V
• Output Power: 1.1W at 5V, 10% THD+N, 8Ω Load
• Shutdown Current: 0.01μA (typical)
• Quiescent Current: 4mA (typical)

Detailed Pin Configuration

The LM4666SD/NOPB has a total of 14 pins. The pin configuration is as follows: 1. VDD - Power supply voltage 2. SHUTDOWN - Shutdown control input 3. BYPASS - Bypass capacitor connection 4. GAIN - Gain select 5. IN- - Negative input 6. IN+ - Positive input 7. VOUT - Amplifier output 8. GND - Ground 9-14. NC - No connection

Functional Features

• Low shutdown current
• Thermal shutdown protection
• Short-circuit protection
• Unity-gain stable
• External gain configuration

Advantages and Disadvantages

Advantages

• Small package size
• Low power consumption
• Thermal and short-circuit protection
• Flexible gain configuration

Disadvantages

• Limited output power compared to larger amplifiers
• Requires external components for full functionality

Working Principles

The LM4666SD/NOPB operates by amplifying the input audio signal and delivering it to the connected speaker or load. It utilizes a low shutdown current to minimize power consumption during standby mode and incorporates thermal and short-circuit protection to ensure safe operation.

Detailed Application Field Plans

The LM4666SD/NOPB is well-suited for use in portable electronic devices, such as smartphones, tablets, portable speakers, and handheld gaming consoles. Its compact size and low power consumption make it an ideal choice for battery-powered applications where space and energy efficiency are crucial.

Detailed and Complete Alternative Models

Some alternative models to LM4666SD/NOPB include: - LM4863: Higher output power, similar package size - TPA2012: Lower power consumption, different package size - MAX98306: Integrated boost converter, higher voltage range

In conclusion, the LM4666SD/NOPB is a versatile audio amplifier suitable for various portable electronic devices. Its compact size, low power consumption, and protective features make it an attractive choice for designers looking to enhance audio performance in their products while maintaining efficiency and reliability.

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