PicoMite: driving a small speaker


Author Message
Turbo46

Guru

Joined: 24/12/2017
Location: Australia
Posts: 1601
Posted: 07:06am 25 Mar 2023      

Requirements:
1) Compact.
2) Adequate quality and volume for a small handheld device.
3) No HiFi high power output needed.
4) Must work with 3.3v supply.

LM386
Features

• Battery Operation
• Minimum External Parts
• Wide Supply Voltage Range: 4 V–12 V or
 5 V–18 V

Will it work reliably on 3.3v and lower as the battery runs down a bit?

Bill