ADP5034 regulators sequencing

How can I create a predefined sequencing for the regulators activation in the ADP5034?

  • The ADP5034 has individual enable pins that can be used to sequence the regulators activation or deactivation. If an external controller is available and not supplied by the ADP5034 the best way is to connect the ENx pins to the controller’s GPIO so that activation and deactivation can be precisely timed, in absence of a controller the sequencing can be implemented with simple RC delay networks connected to the enable pins from a main activation signal (switch, connector, etc). Because the ADP5034 does not have power good signal it is not directly possible to “daisy-chain” regulators, if this is needed I would suggest ADI sequencer ICs to implement this function.