Re: Using LM338T with SIM508
I don't think so.
I have measured the Output of the regulator, it's OK.
and the regulator can power up my circuit. and iit works for some time.
the problem appears when the SIM508 module starts to send, this the point at which the module consumes bursts of 2A as I told before.
I think the problem is Voltage stability during the burst.
My Question is why following up the datasheet is not sufficient to maintain the supply stable during 2A current bursts ?
How can I overcome this problem?
if you suggest putting heat sink , do you have any recommendations for size or design?
Salam
Hossam Alzomor
www()i-g()org