The various implementations described herein include systems, methods and/or devices used to enable power sequencing and data hardening in a storage device. In one aspect, the method includes determining whether a power supply voltage provided to the storage device is higher than an over-voltage threshold. The method further includes, in accordance with a determination that the power supply voltage is higher than the over-voltage threshold, performing a power fail operation, the power fail operation including: (1) signaling a power fail condition to a plurality of controllers on the storage device, (2) transferring data held in volatile memory to non-volatile memory, and (3) removing power from the plurality of controllers on the storage device.