:? Dear Mukesh
What is this .tar extention. what are the topics covered, are they some application notes from some IC manufacturer, if so please indicate from which manufacturer.
does this extention open in windows.
it is better to give more details about your attachment, as it will avoid bandwidth wastage.
pls describe more what is the specification of the regulator you need , did you want to use it in a preciesion enviroment ?
advise to you it is important to read the datasheet of LM7805 P+ regulator and the typical application
see the attachment