Alpha & Omega Semiconductor AOZ3015PI | Demoboard AOZ3015PI-EVB

Description

The AOZ3015PI evaluation board is a fully assembled and tested circuit board built with the AOZ3015PI buck regulator IC. It outputs an adjustable voltage up to 3A of continuous current. The evaluation board requires an input voltage from 4.5 to 18V. The output voltage is preset at 5V and can be adjusted down to 0.8V.The AOZ3015PI-EVB circuit has features like current limit, short circuit protection, input under voltage lock out, internal soft start and thermal shut down. It operates at a fixed 500 kHz switching frequency at heavy load and with PEM (pulse energy mode) at light load. The integrated internal MOSFETs minimize component count, board area and total cost. The AOZ3015PI-EVB demonstrates the simple buck converter design. Only one resistor value change is needed for different output voltage designs. The AOZ3015PI-EVB also supports single layer board design.

Features

 4.5V to 18V operating input voltage range Synchronous Buck: 70 mΩ internal high-side switch and 40 mΩ Internal low-side switch (at 12V) PEM (pulse energy mode) enables 80% plus efficiency with Io=10mA (Vin=12V, Vo=5V) Up to 95% efficiency Internal soft start Output voltage adjustable to 0.8V 3A continuous output current 500kHz PWM operation at heavy load Cycle-by-cycle current limit Pre-bias start-up Short-circuit protection Thermal shutdown Exposed pad SO-8 package

Typical applications

• Point of load DC/DC converters
• Cable modems
• Set top boxes
• DVD / Blu-ray players/recorders
• LCD TV

More information

• IC product information