LM4668LDX/NOPB

Product Overview

Category

The LM4668LDX/NOPB belongs to the category of audio amplifiers.

Use

It is used for amplifying audio signals in various electronic devices such as smartphones, tablets, and portable media players.

Characteristics

• High efficiency
• Low quiescent current
• Thermal shutdown protection
• Short-circuit and thermal overload protection

Package

The LM4668LDX/NOPB comes in a small outline package (SOP) with a specified pin configuration.

Essence

The essence of this product lies in its ability to provide high-quality audio amplification in a compact and efficient package.

Packaging/Quantity

The LM4668LDX/NOPB is typically packaged in reels and available in quantities suitable for mass production.

Specifications

• Input Voltage Range: 2.7V to 5.5V
• Output Power: 1.2W at 3.6V, 10% THD+N, 8Ω Load
• Efficiency: Up to 90%
• Quiescent Current: 1.6mA
• Shutdown Current: 0.01μA

Detailed Pin Configuration

The detailed pin configuration of LM4668LDX/NOPB includes: 1. VDD - Power supply input 2. GND - Ground connection 3. SD - Shutdown pin 4. IN+ - Positive audio input 5. IN- - Negative audio input 6. OUT+ - Positive audio output 7. OUT- - Negative audio output

Functional Features

• High-efficiency Class D operation
• Integrated boost converter
• Thermal shutdown protection
• Short-circuit and thermal overload protection

Advantages and Disadvantages

Advantages

• High efficiency leads to longer battery life in portable devices
• Integrated protection features enhance reliability
• Small form factor enables compact designs

Disadvantages

• Limited output power compared to larger audio amplifiers
• Sensitive to electromagnetic interference in some applications

Working Principles

The LM4668LDX/NOPB operates on the principle of Class D amplification, where the audio signal is converted into a series of pulses to drive the output stage efficiently. The integrated boost converter ensures that the amplifier can deliver high-quality audio even when powered by low-voltage sources.

Detailed Application Field Plans

The LM4668LDX/NOPB is well-suited for use in portable electronic devices such as: - Smartphones - Tablets - Portable media players - Bluetooth speakers - Wearable audio devices

Detailed and Complete Alternative Models

Some alternative models to LM4668LDX/NOPB include: - LM4863 - TPA2012 - MAX98306

In conclusion, the LM4668LDX/NOPB is a versatile audio amplifier with high efficiency and integrated protection features, making it an ideal choice for portable electronic devices requiring high-quality audio amplification.

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