LM4671 - Filterless High Efficiency 2.5W Switching Audio Amplifier

National Semiconductor

The LM4671 by National Semiconductor is a Filterless High Efficiency 2.5W Switching Audio Amplifier. Below is the official datasheet preview.

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LM4671 Filterless High Efficiency 2.5W Switching Audio Amplifier by National Semiconductor - Datasheet Preview — Official preview page of the **LM4671** Filterless High Efficiency 2.5W Switching Audio Amplifier datasheet (National Semiconductor).

Datasheet Details

Part number	LM4671
Manufacturer	National Semiconductor
File Size	620.01 KB
Description	Filterless High Efficiency 2.5W Switching Audio Amplifier
Datasheet	LM4671_NationalSemiconductor.pdf
Additional preview pages of the LM4671 datasheet.

LM4671 Product details

Description

The LM4671 is a single supply, high efficiency 2.5W switching audio amplifier.

Features

a low-power consumption shutdown mode. Shutdown may be enabled by driving the Shutdown pin to a logic low (GND). The gain of the LM4671 is externally configurable which allows independent gain control from multiple sources by summing the signals. Key Specifications.
Efficiency @ 3.6V, 100mW into 8Ω speaker 80% (typ) 88% (typ) 86% (typ) 2.8mA (typ) 0.01µA (typ) 2.4V to 5.5V.
Efficiency @ 3.6V, 400mW into 8Ω speaker speaker.
Efficiency @ 5V, 1W into 8Ω.
Quiescent curren.

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Published: Apr 21, 2010 |