onsemi LA4663-E
| Parameters | |
|---|---|
| Series | * |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| Package / Case | 14-SSIP Exposed Tab, Formed Leads |
| Mfr | onsemi |
| Mounting Type | Through Hole |
| Supplier Device Package | 14-SIPHZ |
| Package | Tube |
| Product Status | Obsolete |
| Base Product Number | LA4663 |
| REACH Status | REACH Unaffected |
| Standard Package | 20 |
| ECCN | EAR99 |
| HTSUS | 8542.33.0001 |
LA4663-E Audio Amplifier, Class AB Audio IC
The LA4663-E is a high-performance audio power amplifier IC designed for compact and efficient audio amplification in portable and space-constrained electronic devices. This Class AB amplifier delivers clear and distortion-free sound output, making it ideal for applications such as mobile phones, portable audio players, and small home audio systems. With its low quiescent current and high power efficiency, the LA4663-E ensures extended battery life while maintaining excellent audio quality. The chip integrates thermal shutdown and short-circuit protection features, enhancing reliability in demanding environments.
Featuring a low-noise operational amplifier front-end, the LA4663-E provides high signal integrity and minimal distortion, ensuring clean audio reproduction even at high volumes. The chip supports a wide supply voltage range (typically 2.5V to 6.0V), making it compatible with various power supply configurations. Its low output impedance and high current capability allow it to drive low-impedance speakers efficiently, while built-in muting and standby functions help reduce power consumption during idle periods. The compact SOP-8 or TSSOP-8 package ensures easy integration into small-form-factor designs.
The LA4663-E is optimized for low electromagnetic interference (EMI), reducing unwanted noise in sensitive audio applications. Its high gain bandwidth product ensures stable amplification across a wide frequency range, making it suitable for both voice and music playback. The chip also incorporates a built-in click-and-pop suppression circuit, minimizing audible noise during power-on and power-off transitions. With its robust design and cost-effective performance, the LA4663-E is a reliable choice for consumer audio products requiring high-quality sound amplification in a compact form factor.
For applications requiring alternative audio amplifier ICs, consider the following comparable chips:
● TPA2005D1: A 1.7W Class-D stereo audio amplifier with ultra-low quiescent current, ideal for battery-powered devices.
● LM4862: A 1W mono audio amplifier with shutdown mode, offering low noise and high efficiency for portable audio applications.
● PAM8403: A 3W Class-D stereo amplifier with a tiny SMD package, designed for ultra-low EMI and high efficiency.
