Charge pump system

A charge pump system comprising:

• a charge pump circuit comprising an input terminal configured to receive an input voltage, and an output terminal configured to output an output voltage, the charge pump circuit being configured to convert the input voltage to the output voltage;
• a transistor comprising a control terminal configured to receive a control voltage, and a first terminal connected to the input terminal of the charge pump circuit to provide the input voltage to the input terminal of the charge pump circuit, the transistor being configured to generate the input voltage based on the control voltage;
• an amplifier comprising a first input terminal configured to receive a feedback voltage, a second input terminal configured to receive a first reference voltage, and an output terminal connected to the control terminal of the transistor to provide the control voltage to the control terminal of the transistor, the amplifier being configured to generate the control voltage based on the feedback voltage and the first reference voltage;
• a first voltage divider connected between a terminal configured to receive a second reference voltage and the output terminal of the charge pump circuit and configured to generate the feedback voltage and output the feedback voltage to the first input terminal of the amplifier;
• and
• a second voltage divider connected between the terminal configured to receive the second reference voltage and a ground and configured to generate the first reference voltage and output the first reference voltage to the second input terminal of the amplifier.