Power failure protection system for solid state drives

A solid state drive comprising:

• an internal component including a memory device, a buffer memory and a memory controller which are coupled to each other;
• and
• a power failure protection system configured to receive a power from a host, generate one or more various operation power voltages and provide one of the operation voltages to the internal component,
• wherein the power failure protection system includes:
• a plurality of power converters, each power converter providing a set operation voltage to the internal component;
• a stand-by power converter configured to provide a stand-by operation voltage to the internal component;
• a power switch array including a plurality of power switch pairs, each power switch pair including a first power switch coupled between a power converter among the plurality of power converters and the internal component, and a second power switch coupled between the stand-by power converter and the internal component;
• and
• a power control complex programmable logic device configured to:
• monitor power failures of the plurality of power converters;
• when a power failure of a particular power converter among the plurality of power converters is detected, configure a power level for the stand-by power converter, the configured power level corresponding to the failed power converter;
• and
• control a target power switch pair corresponding to the failed power converter such that an operation voltage generated by the stand-by power converter is applied to the internal component through the second power switch of the target power switch pair.