skakz
Newbie level 6
pwering microcontroller
hi i am building a device with a 3.7 battery source and my microntroller needs max of 100mA and 3.6 V best voltage in 3.3
it needs 40 mA in normal mode and 60μA in powerdown mode
My major problem is to get 3.6 from 3.7 i will put a resistance and i get it;s value from V=IR which I do i use ?
if i used the 100mA and the microcontroller the R is 1Ω it's ok but if the current was less the voltage on the pin will be high
if i used 60μA then when the micrcontroller needs 40mA the voltage on the pin will be less than 3 !!
please some help me
hi i am building a device with a 3.7 battery source and my microntroller needs max of 100mA and 3.6 V best voltage in 3.3
it needs 40 mA in normal mode and 60μA in powerdown mode
My major problem is to get 3.6 from 3.7 i will put a resistance and i get it;s value from V=IR which I do i use ?
if i used the 100mA and the microcontroller the R is 1Ω it's ok but if the current was less the voltage on the pin will be high
if i used 60μA then when the micrcontroller needs 40mA the voltage on the pin will be less than 3 !!
please some help me