SLASEE2 February 2018 DAC8771
PRODUCTION DATA.
This is the default mode of operation, CCLP[1:0] = "00" for Buck-Boost converter is to be in full tracking mode. The minimum voltage generated on VPOS_IN in this case is 4 V. The Buck-Boost converter varies the positive and negative outputs adaptively such that the voltage across these outputs and IOUT pins is ≤ 3 V. This is accomplished by internally feeding back the voltage across the current output PMOS and NMOS to the respective Buck-Boost converter control circuit. For example, for a load current of 24 mA flowing through a load resistance of 1 KΩ, the generated voltage at the VPOS_IN pin will be around 27V.