Low Power Regulators

[ardhuru]

Am toying in the future of replacing with a LF (3.3v)

Andy

Since you're willing to operate the circuit on 3.3v, why not eliminate the PP3+regulator combo altogether, and go with a protected 18650 Lithium-Ion instead? You'll get a far longer runtime than a PP3+regulator, plus this is chargeable!

Regards,

Anand