7905內(nèi)部框圖

*Required if regulator is separated from filter capacitor by more than 3×. For value given, capacitor must be solid tantalum. 25 mF aluminum electrolytic may be substituted.2Required for stability. For value given, capacitor must be solid tantalum. 25 mF aluminum electrolytic may be substituted. Values given may be increased without limit.For output capacitance in excess of 100 mF, a high current diode from input to output (1N4001, etc.) will protect the regulator from momentary input shorts.

上面是7905的接法以及7905的管腳圖，還有7905的應(yīng)用電路。