General Description

The AOZ1019 evaluation board is a fully assembled and tested circuit board built with the AOZ1019 buck regulator IC. It outputs a preset or adjustable voltage and up to 2A of continuous current. The evaluation board requires an input voltage from 4.5V to 16V. The output voltage is preset and can be adjusted from 0.8V to VIN–0.4V

The AOZ1019-EVA circuit features include; current limit, short circuit protection, input under voltage lock out, internal soft start and thermal shut down. It operates at a fixed 500kHz switching frequency. The current mode control and integrated internal MOSFET minimize component count, board area and total cost.

The AOZ1019 comes in an SO-8 package and is rated over a -40°C to +85°C ambient temperature range.

Features

● 4.5V to 16V operating input voltage range

● Output voltage was preset to 3.3V, adjustable down to 0.8V

● 2A continuous output current

● Fixed 500kHz PWM operation

● Internal soft start

● Cycle-by-cycle current limit

● Short-circuit protection

● Thermal shutdown

Applications

● Point of load DC/DC conversion

● PCIe graphics cards

● Set top boxes

● DVD drives and HDD

● LCD panels

● Cable modems

● Telecom/networking/datacom equipment