The HIP6311A control IC features a 5 bit digital-to-analog converter (DAC) that adjusts the core output voltage from 1.100V to 1.850V with an unsurpassed system accuracy of 0.5% over temperature. The HIP6311A uses a lossless current sensing approach in which the voltage developed across the on-resistance of the lower MOSFETs during conduction is sampled. Current sensing provides the required signals for precision droop, channel-current balancing, load sharing, and over-current protection. Another feature of this control IC is the PGOOD monitor which is held low until the core voltage increases to within 8% of the programmed voltage. An over-voltage condition is detected when the output voltage exceeds 115% of the programmed VID. This results in the converter shutting down and PGOOD being pulled low. During an under-voltage condition (output voltage 10% below the programmed VID), PGOOD transitions low, but the converter continues to operate.