UG109 Rev 3.0, 25-Sep-2018 ACT8865EVK1-305 Users Guide Description This document describes the characteristic and operation of the Active Semi ACT8865EVK1-305 evaluation kit (EVK). It provides setup and operation instructions, schematic, layout, BOM, and test data. This EVK demonstrates the ACT8865QI305 ActivePMU power management IC. Other ACT8865QIxxx options can be evaluated on this EVK by replacing the IC and any other necessary components. Features The EVK can be used as a standalone board if desired. However, to access the internal registers and to take full advantage of the ICs capability, the user must connect the EVK kit to a PC with Active Semis USB-TO-I2C interface dongle and use the GUI software. The EVK provides full access to the each converters input and output voltage, as well as all the digital control signals. This gives the user the flexibility to configure the EVK to match their real world system. The EVK features three step-down DC/DC converters and four low-noise, low- dropout linear regulators. The three DC/DC converters utilize a high-efficiency, fixed-frequency (2MHz), current- mode PWM control architecture that requires a minimum number of external components. Two DC/DCs are capable of supplying up to 1150mA of output current, while the third supports up to 1300mA. All four low-dropout linear regulators are high-performance, low-noise, regulators that supply up to320mA.Note that the ACT8865AEVK1-305is specifically configured for the ACT8865QI305. Figure 1 EVK Picture TM Innovative Power TM ActiveSwitcher is a trademark of Active-Semi. 1 UG109 Rev 3.0, 25-Sep-2018 Quick Start Required Equipment ACT8865EVK1-305 USB-TO-I2C Dongle Power supply 5V 3A for full power operation Oscilloscope >100MHz, 4 channels Loads Electronic or resistive. 2A minimum current capability. Digital Multimeters (DMM) Windows compatible computer with spare USB port. E load E load E load DC Power E load PC USB dongle Figure 2 EVK Setup TM Innovative Power TM ActiveSwitcher is a trademark of Active-Semi. 2