General Description

The AOZ2295AQI-03 is a high-efficiency, easy-to-use DC/

DC buck regulator that targeted for system-power supply

solution. The devices are capable of supplying 12A of

continuous output current with 3.3V output voltage.

The AOZ2295AQI-03 integrates an internal linear regulator

to generate 5.0V VCC from input. If input voltage is lower

than 5.0V, the linear regulator operates at low drop output

mode, which allows the VCC voltage is equal to input voltage

minus the drop-output voltage of the internal linear regulator.

A proprietary constant on-time PWM control with input

feed-forward results in ultra-fast transient response while

maintaining relatively constant switching frequency over the

entire input voltage range.

The device features multiple protection functions such as

LDO under-voltage lockout, cycle-by-cycle current limit,

output over-voltage protection, short-circuit protection, and

thermal shutdown.

The AOZ2295AQI-03 is available in a 4mm×4mm QFN - 31L

package and is rated over a -40°C to +85°C ambient

temperature range.

Features

• Wide input voltage range

- 5.5 V to 25 V

• 12 A continuous output current

• 16A output peak current

• Output voltage: 3.3V ±3.0

• Low RDS(ON) internal NFETs

- 8 mΩ high-side

- 2 mΩ low-side

• 5V LDO Output

• Constant On-Time with input feed-forward

• Ripple Reduction at light load

• Ton Extension Mode

• Ultrasonic Mode

• Ceramic capacitor stable

• Adjustable soft start

• Power Good output

• Integrated bootstrap diode

• Cycle-by-cycle current limit

• Short-circuit protection

• Thermal shutdown

• Thermally enhanced 31-pin 4mm× 4mm QFN

Applications

• Notebook computers

• Tablet computers