myatham
Member level 3
Hi,
I am using a GSM modem which requires a power of 3.2v min to 4.5V max.
In burst mode, it draws nearly 2A current for 2milli seconds, nomally it is 250mA.
I feel that it may drop the supply voltage to less than 3.2V. So, i am planning to keep decoupling capacitors. How to chose the value of capacitor? can u pls send the calculations.
Thanks in advance
I am using a GSM modem which requires a power of 3.2v min to 4.5V max.
In burst mode, it draws nearly 2A current for 2milli seconds, nomally it is 250mA.
I feel that it may drop the supply voltage to less than 3.2V. So, i am planning to keep decoupling capacitors. How to chose the value of capacitor? can u pls send the calculations.
Thanks in advance