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i think im facing a load problem.my input is 3.3V.but when i connect to PCB its getting only .5V.how to avoid this?
thanks for your reply.Is it possible to show us a diagram of your circuit?
Source of problem could be:
1): your 3.3V source current is not enough for your circuit
2): Your circuit has a faulty component or design error
The circuit is actually getting a supply of 12V 500mA to the input of 7805.Now i am trying to give a external trigger of 3.3V directly to S1(pin 10) to trigger a voice.when i give this i am actually getting 1.8V in pin 10.If you connect 3.3V at J2 power connector you'll get 1.9V at the input of your 5V regulator!