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LM2576 ic mobile charger by 12 volt battery with 3 amp high output.

LM2576 ic mobile charger

This things are required to make it............

1.👉 LM2576 ic 5 volt..........

2.👉 1 pcs 100uf capacitor...........

3.👉 1 pcs 100uh inductor............

4.👉 1 pcs IN5822 diode............

5.👉 1pcs 1000uf capacitor...........

Watch This Video For Better Understanding

circuit diagram of LM2576 ic

*Now watch the circuit diagram and follow my steps to make this charger.

*First you want LM2576 ic (5 volt). Watch the picture, you can see ic pinout.

1 no pin...........Input

2 no pin...........Output

3 no pin...........Gnd

4 no pin...........Feedback

5 no pin...........On-Off

*Then attached the ic with heat sink, after appling heat paste/ cumpaund.


*Then connect 100uf capacitor with ic's 1 no pin. Connect capacitor [+] with ic's 1 no pin and connect capacitor [-] pin with gnd.

*Then connect IN5822 (3 ampere) diode on ic,s 2 no pin. Connect diode [-] with ic's 2 no pin and connect diode [+] with gnd.

*Then connect 100uh inductor's first pin with ic;s 2 no pin.

*Then short ic's 3 no pin to ic's 5 no pin by wire, and then connect the wire with gnd. [connect after watch circuit diagram]

*Then connect 1000uf capacitor [+] with inductor second pin and connect capacitor [-] pin with gnd. [connect after watch circuit diagram].

*Then short ic's 4 no pin to 1000uf capacitor's [+] pin, by wire.

*Watch the picture. ic's 1 no pin 7-40 volt dc input. Where 100uh inductor and 1000uf capacitor's [+] pin connected there is output 5 volt dc with 3 ampere. And where IN5822 diode's [+] and 1000uf capacitor [-] connected there is gnd.  [connect after watch circuit diagram].

*Now your circuit is ready. Check voltage by multimeter.

Thank you,

Technical Mriganka...........

Post a Comment


  1. You are best! Thanks share this project.

  2. High-voltage or "venture up" transformers contort lower voltages into higher voltages.אנרגיה ירוקה מאמרים

  3. Bhai apne last me jo alg se usb port bala circuit lgaya hai usme ky ky lgaya hai or kaise lgaya h wo to btao.

  4. Apne ampere check karke nahi dikhaya .(eska amp infinite hai).

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