Urahara
Member
Hi
This might be a basic/silly question, but since I have really no foundation in electronics, I guess I have to tap on the experts here.
Suppose I have a circuit (pic chip + lcd/oled character module + keypad) that requires 5V to operate. For batteries, I could use either be a 1x9V or 4x1.5V AA (total 6V) battery. Since either types of battery > 5V, I would need a voltage regulator to drop the input battery voltages down to 5V, correct? if so, I would need a low drop out regulator?
If I would like to maximize the usage time, which type of battery would be a better choice?
The way I look at it, the 9V would be better since it has a longer way to go before dropping to below 5V. But AA batteries are easier to find.
Thks!
This might be a basic/silly question, but since I have really no foundation in electronics, I guess I have to tap on the experts here.
Suppose I have a circuit (pic chip + lcd/oled character module + keypad) that requires 5V to operate. For batteries, I could use either be a 1x9V or 4x1.5V AA (total 6V) battery. Since either types of battery > 5V, I would need a voltage regulator to drop the input battery voltages down to 5V, correct? if so, I would need a low drop out regulator?
If I would like to maximize the usage time, which type of battery would be a better choice?
The way I look at it, the 9V would be better since it has a longer way to go before dropping to below 5V. But AA batteries are easier to find.
Thks!