The LM48520 integrates a boost converter with a high efficiency Class D stereo audio power amplifier to provide up to 1W/ch continuous power into an 8Ω speaker when operating from 2.7V to 5.0V power supply with boost voltage (PV1) of 5.0V. The LM48520 utilizes a proprietary spread spectrum pulse width modulation technique that lowers RF interference and EMI levels. The Class D amplifier is a low noise, filterless PWM architecture that eliminates the output filter, reducing external component count, board area, power consumption, system cost, and simplifying design.
The LM48520 is designed for use in mobile phones and other portable communication devices. The high (78%) efficiency extends battery life when compared to Boosted Class AB amplifiers
| LM48520 | |
| Speaker Channels | Stereo |
| Speaker Amp Type | Class-D, Class-D Boosted |
| Output Power (W) | 1.3 |
| PSRR (dB) | 82 |
| Supply Min (Min) (Volt) | 2.6 |
| Supply Max (Max) (Volt) | 5 |
