SINGLE INDUCTOR MULTIPLE OUTPUT(SIMO) DC-DC CONVERTER AND CONTROL METHOD THEREOF

摘要

PURPOSE: A SIMO(Single Inductor Multi Output) DC-CC converter and a control method thereof are provided to make an amplifier, which is to utilize the information on output nodes as a load current, unnecessary, thereby securing stability without a separate compensation circuit. CONSTITUTION: A SIMO(Single Inductor Multi Output)DC-CC converter(100) includes an output selection unit(110) which selects a first output node which is provided with a present current from a drive unit among multiple output nodes; a comparator(120) which judges whether output voltage is higher than the reference voltage or not by comparing the output voltage of a first output node with the reference voltage of the first output node; and a control unit(130) which controls a first time length which is setup as the maximum time length that continues supplying current to a first output node according to the judgment. [Reference numerals] (110) Output selection unit; (120) Comparison unit; (130) Control unit; (140) Driving unit; (151) Output 1; (152) Output 2; (AA) Output N