The ADM1166 Super Sequencer? is a configurable supervisory/ sequencing device that offers a single-chip solution for supply monitoring and sequencing in multiple-supply systems. In addition to these functions， the ADM1166 integrates a 12-bit ADC and six 8-bit voltage output DACs. These circuits can be used to implement a closed-loop margining system that enables supply adjustment by altering either the feedback node or reference of a dc-to-dc converter using the DAC outputs.

　　Supply margining can be performed with a minimum of external components. The margining loop can be used for in-circuit testing of a board during production （for example， to verify board func-tionality at ?5% of nominal supplies）， or it can be used dynamically to accurately control the output voltage of a dc-to-dc converter.

　　For more information about the ADM1166 register map， refer to the AN-698 Application Note.