产品概述
The LM48511SQ/NOPB is a filterless mono class D Audio Power Amplifier with spread spectrum. This device integrates a boost converter with a high-efficiency class D audio power amplifier to provide 3W continuous power into a 8R speaker when operating from a 5V power supply. When operating from a 3 to 4V power supply, the LM48511 can be configured to drive 1 to 2.5W into a 8R load with less than 1% distortion (THD+N). The class D amplifier features a low-noise PWM architecture that eliminates the output filter, reducing external component count, board area consumption and simplifying design. A selectable spread spectrum modulation scheme suppresses RF emissions, further reducing the need for output filters. The switching regulator of the LM48511 is a current-mode boost converter operating at a fixed frequency of 1MHz.
- Selectable spread spectrum mode reduces EMI
- Independent regulator and amplifier shutdown controls
- Dynamically selectable regulator output voltages
- Low shutdown current
- Click and pop suppression
- 80% Efficiency
- Green product and no Sb/Br
应用
音频, 传感与仪器, 便携式器材, 消费电子产品
产品信息
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- 3W
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- D
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- 1通道
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- 3V 至 5.5V
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- LLP
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- 24引脚
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- 8ohm
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- -40°C
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- 85°C
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- -
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- -
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- MSL 1 -无限制