Data storage device comprising dual mode independent/parallel voltage regulators

摘要

A data storage device (DSD) is disclosed comprising a non-volatile memory (NVM), and control circuitry comprising a first voltage regulator having a first output operable to generate a first current, and a second voltage regulator having a second output operable to generate a second current. When in an independent mode, the first current is operable to supply a first load independent of the second current, and the second current is operable to supply a second load independent of the first current. When in a parallel mode, the second output is coupled to the first output in order to increase the first current supplied to the first load and decrease the second current supplied to the second load.

主权项

1. A data storage device (DSD) comprising:
a non-volatile memory (NVM); and control circuitry comprising:
a first voltage regulator comprising a first output operable to generate a first current;a second voltage regulator comprising a second output operable to generate a second current; andconfiguration circuitry for configuring the first and second voltage regulators into one of an independent mode and a parallel mode, wherein:
when in the independent mode, the first current is operable to supply a first load independent of the second current, and the second current is operable to supply a second load independent of the first current; andwhen in the parallel mode, the second output is coupled to the first output in order to increase the first current supplied to the first load and decrease the second current supplied to the second load,wherein:
the first voltage regulator comprises a first switching regulator comprising first switching logic;the second voltage regulator comprises a second switching regulator comprising second switching logic;when in the independent mode, the first switching logic is configured to control the first switching regulator and the second switching logic is configured to control the second switching regulator; andwhen in the parallel mode, the first switching logic is configured to control the first switching regulator and the second switching regulator.