The POWR1220AT8 can be used to implement a form of Voltage Identification Digital (VID). Typically a processor will output a digital code to the power supply to request more or less power depending on the processor load. When the processor is going to work very hard the digital VID code is sent to the power supply to increases the voltage. When the processor returns to an idle mode the digital VID code is sent to the power supply to decreases the voltage to conserve power and keep the processor cool. VID modules for specific processors are both large and costly. However, VID control can be realized using a power supply that is trimmed using the POWR1220AT8. The POWR1220AT8 is then controlled by I2C to implement and external closed loop trim. This solution is demonstrated on the Hercules Evaluation board where the Lattice Mico-8 (LM8) soft-core processor in the MachXO converts the digital VID code into I2C commands for the POWR1220AT8. For additional information please see the Power Manager II Hercules Development Kit page (link below).