Philips make some nice little 8 pin chips that do something like
this. Check out the TDA7052 for 1.2W mono, no shutdown pin but
Iq about 4mA. They probably have something newer and better out
now. Are you using a micro to produce the audio? - put some
MOSFETs on it and make your own grunty little switching amplifier.

Jinx wrote:
> Hi, any suggestions for a low power audio amp for a battery
> operated unit. 1 or 2W, 5 to 6.5V. Discrete or IC, desirably well
> below 1mA quiescent or, better, one that can be powered down
> when not needed


Brent Brown
Electronic Design Solutions
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Hamilton, New Zealand
Ph/fax: +64 7 849 0069
Mobile: 025 334 069
eMail:  brent.brown@clear.net.nz