W7800 series application circuit

W7800 series application circuit

The turtle shown is a W7800 series application circuit .
    In order to ensure the normal operation of the voltage regulator, the minimum input-output voltage difference is at least 2---3 V. The capacitor cl is to offset the inductance effect when the input line is long
to prevent self-oscillation; C2 is to eliminate the high-frequency noise of the circuit and improve the load transient response.