ADM1166 is a super sequencer with margining control and nonvolatile fault recording. This 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, this integrates a 12bit ADC and six 8bit 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 or it can be used dynamically to accurately control the output voltage of a dc-to-dc converter. Typical applications are central office systems, servers/routers, multivoltage system line cards, DSP/FPGA supply sequencing, In-circuit testing of margined supplies.