Hello friends. I need to increase the voltage to a 12v motorola mobile charger. It brings an integrated KA7500C and the output delivers 4.6v and I need 5v to be able to charge my mobile in the car. I didn't know what device it was. the truth is that nothing more delivery 4.6v .. I am an electronics learner and I would really like to learn how to increase the voltage to this circuit. Here is the datasheet.

you need this that is very cheap, small and easy to install •DESCRIPTION Module features (Boost module): Maximum output current: 2A Input voltage: 2V ~ 24V Maximum output voltage:> V 5V-28 (Safety voltage 25V, 28V easy damage note) Efficiency:> 93% Mechanical properties: Product size: 36mm * 17mm * 14mm Using the method After the module, + and -2 ~ 24V, the potentiometer can be adjust to adjust the output voltage, the output voltage is more than the input voltage Note Input voltage must not exceed the maximum input voltage Peak current output current is no more than 2A • DOWNLOAD TECHNICAL INFORMATION https://drive.google.com/drive/folders/0B8i5PxQ5XywycC1BUF81N1NqUTg?usp=sharing