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How to calculate the output current

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somf0872

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I am trying to design a power supply fir 15V and 300mA output. ............. In my design at the output satge I am using Op-amp OP213 from analog devices. The datasheet mention that the max short circuit limit is Isc=30mA ..............

Now doest this parameter means that my power supply is limited to only 30mA load or is there another way to find out how much current can be draw out from my power supply design.

I mean how can one calculate it or which parameter of op-amp I have to study for it.

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flatulent

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You can boost the output current limit by driving an NPN emitter follower with the amplifier and put the load from emitter to ground. Then take the feedback from the emitter to the input of the amplifier.

It would be easier to use a three terminal regulator IC.
 

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