Active-semi ACT8865EVK1-305 Manual del usuario

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UG109

Rev 3.0, 25-Sep-2018

ACT8865EVK1-305 User's 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 IC's capability, the user must connect the EVK kit to a PC with Active Semi's USB-TO-I2C

interface dongle and use the GUI software. The EVK provides full access to the each converter's 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

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