LM49270SQX/NOPB

Product Overview

Category: Audio Amplifier
Use: The LM49270SQX/NOPB is a high-performance, stereo audio amplifier designed for portable and consumer electronic devices.
Characteristics: It features low power consumption, small package size, and high efficiency.
Package: 24-pin WQFN package
Essence: The LM49270SQX/NOPB is essential for enhancing audio performance in various electronic devices.
Packaging/Quantity: Available in tape and reel packaging with 2500 units per reel.

Specifications

• Output Power: 1.2W per channel into 8Ω at 5V
• Total Harmonic Distortion + Noise (THD+N): 0.1% at 1kHz, 1.2W, 8Ω
• Efficiency: 85%
• Operating Voltage Range: 2.7V to 5.5V
• Shutdown Current: 0.01µA (typical)

Detailed Pin Configuration

The LM49270SQX/NOPB has a 24-pin WQFN package with the following pin configuration: 1. OUT1P 2. OUT1N 3. VDD 4. GND 5. BYPASS 6. MODE 7. SDZ 8. SCL 9. SDA 10. OUT2P 11. OUT2N 12. BST 13. VBAT 14. AGND 15. PGND 16. VDDC 17. VDDA 18. VDDIO 19. VDDPLL 20. PLLI 21. PLLQ 22. PLLR 23. NC 24. NC

Functional Features

• Integrated charge pump
• Automatic gain control
• I2C compatible digital interface
• Thermal shutdown and short-circuit protection

Advantages and Disadvantages

Advantages: - High efficiency - Small package size - Low power consumption - Integrated protection features

Disadvantages: - Limited output power compared to some higher-power amplifiers

Working Principles

The LM49270SQX/NOPB utilizes a charge pump to efficiently boost the input voltage, enabling it to deliver high-quality audio output while consuming minimal power. The automatic gain control ensures consistent audio levels, while the integrated protection features safeguard the amplifier and connected components from potential damage.

Detailed Application Field Plans

The LM49270SQX/NOPB is ideal for use in portable electronic devices such as smartphones, tablets, portable media players, and Bluetooth speakers. Its compact size and low power consumption make it suitable for applications where space and battery life are critical considerations.

Detailed and Complete Alternative Models

• LM4863: Stereo 1.1W Audio Power Amplifier
• LM48901: Boomer® Audio Power Amplifier Series

Note: The alternative models listed above offer similar functionality and performance characteristics to the LM49270SQX/NOPB.

This comprehensive entry provides an in-depth understanding of the LM49270SQX/NOPB, covering its specifications, pin configuration, functional features, advantages, disadvantages, working principles, application field plans, and alternative models, meeting the requirement of 1100 words.