Lower voltage LM386?

DonFlamenco · 6th September 2006, 09:19 AM

Hi, I have a 5V battery powered LM386 circuit that I would really like to run at 2.5-3V. Regrettably, the LM386 has a minimum supply voltage of 4V. Does anyone know of a chip that is approximately feature compatable with the LM386 but can operate with a lower supply voltage? The features I'm currently enjoying from the LM386 are single supply rail, fixed 20x gain, and 1/2 input voltage bias.

Thanks!

Don

SpittinLLama · 6th September 2006, 10:56 PM

Depends on what you need from the LM386. National makes a ton of 5V parts called their Boomer line. Search their site and you will probably find something. They operate all the way down to something like 1.6V, depending on the part.

-SL

6th September 2006, 09:19 AM	#1
DonFlamenco diyAudio Member Join Date: Sep 2006	Lower voltage LM386? Hi, I have a 5V battery powered LM386 circuit that I would really like to run at 2.5-3V. Regrettably, the LM386 has a minimum supply voltage of 4V. Does anyone know of a chip that is approximately feature compatable with the LM386 but can operate with a lower supply voltage? The features I'm currently enjoying from the LM386 are single supply rail, fixed 20x gain, and 1/2 input voltage bias. Thanks! Don

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6th September 2006, 10:56 PM	#2
SpittinLLama diyAudio Member Join Date: Apr 2005 Location: In the Wild, Wild West	Depends on what you need from the LM386. National makes a ton of 5V parts called their Boomer line. Search their site and you will probably find something. They operate all the way down to something like 1.6V, depending on the part. -SL

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