(Hack) How To Make Step Down Charger as Buck Booster | 5v To 12v Converter | MC34063

In this i demonstrate how we can easily convert a simple 12v to 5v car charger into 5v to 12v Step up converter by just adding some different value of resistor and capacitor.
In this step up circuit i use mc34063 or mc34063a ic that comes with simple car charger.

Step down charger as buck booster.
How to make step up charger from old electronic circuit.
mc34063 or mc34063a support step up,step down and inverted voltage ex (-12v).

MC3x063A 1.5-A Peak Boost/Buck/Inverting Switching Regulators
Features:
Wide Input Voltage Range: 3 V to 40 V
• High Output Switch Current: Up to 1.5 A
• Adjustable Output Voltage
• Oscillator Frequency Up to 100 kHz
• Precision Internal Reference: 2%
• Short-Circuit Current Limiting
• Low Standby Current

For more information see datasheet at