General Description
The AOZ2263VQI-02 is a high-efficiency, easy-to-use
DC/DC synchronous buck regulators capable of
operation from a 4V to 28V input bus. The device is
capable of supplying 12A of continuous output current
with an output voltage adjustable from 0.8V to 1.05V by
controlling VID0 and VID1 signals.
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 devices feature multiple protection functions such as
VCC under-voltage lockout, cycle-by-cycle current limit,
output over-voltage protection, short-circuit protection,
and thermal shutdown.
The AOZ2263VQI-02 is available in a 4mm×4mm QFN-
22L package and is rated over a -40°C to +85°C ambient
temperature range.

Features
 Wide input voltage range:
– 4V to 28V
 12A continuous output current
 2 bits programmable output voltage adjustable from
0.8V to 1.05V
 Low RDS(ON) internal NFETs
– 11m high-side
– 7m low-side
 Constant On-Time with input feed-forward
 Ripple Reduction at light load
 Remote sense
 Low Power Mode
 Ceramic capacitor stable
 Fixed soft start
 Power Good output
 Integrated bootstrap diode
 Cycle-by-cycle current limit
 Short-circuit protection
 Over voltage protection
 Thermal shutdown
 Thermally enhanced 22-pin 4m×4m QFN

Applications
 Portable computers
 Compact desktop PCs
 Servers
 Graphics cards
 Set top boxes
 LCD TVs
 Cable modems
 Point of load dc/dc converters
 Telecom/Networking/Datacom equipment