AN023 An Useful Model for Charge Pump Converter Introduction Analysis This application note focuses on the analysis of the charge pump and its equivalent circuit.
The AIC1845 is a micro-power charge pump DC/DC converter that produces a regulated 5V output.
This kind of converter uses capacitors to store and transfer energy.
Since the capacitors can not change their voltage level abruptly, the voltage ratio of VOUT over VIN is limited to some range.
Capacitive voltage conversion is obtained by switching a capacitor periodically.
It first charges the capacitor by connecting it across a voltage source and then connects it to the output.
Referring to Fig.
1, During the on state of internal clo...

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