Synchronous Regulator. AOZ2262AQI-10 Datasheet

AOZ2262AQI-10 Datasheet PDF


Part Number

AOZ2262AQI-10

Description

28V/10A Synchronous Regulator

Manufacture

Alpha & Omega Semiconductors

Total Page 15 Pages
Datasheet
Download AOZ2262AQI-10 Datasheet


AOZ2262AQI-10
AOZ2262AQI-10
28V/10A Synchronous EZBuckTM Regulator
General Description
The AOZ2262AQI-10 is a high-efficiency, easy-to-use
DC/DC synchronous buck regulator that operates up to
28V. The device is capable of supplying 10A of
continuous output current with an output voltage
adjustable down to 0.8V (±1.0%).
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 on-time can be
externally programmed up to 1.3µs.
The device features 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 AOZ2262AQI-10 is available in a 4mm x 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
10A continuous output current
Output voltage adjustable down to 0.8V (±1.0%)
Low RDS(ON) internal NFETs
14mhigh-side
12mlow-side
Constant On-Time with input feed-forward
Programmable on-time up to 1.3µs
Selectable PFM light load operation
Ceramic capacitor stable
Adjustable soft start
Ripple reduction
Power Good output
Integrated bootstrap diode
Cycle-by-cycle current limit
Short-circuit protection
Thermal shutdown
Thermally enhanced 4mm x 4mm QFN-22L package
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
Rev. 2.0 March 2019
www.aosmd.com
Page 1 of 15

AOZ2262AQI-10
Typical Application
RTON
TON
IN
5V
R3
100k
POWER GOOD
OFF ON
C4
4.7µF
CSS
BST
VCC
AOZ2262AQI-10
PGOOD
EN
PFM
LX
FB
SS AGND
PGND
C5
0.1µF
L1
1µH
R2
R1
POWER GROUND
ANALOG GROUND
AOZ2262AQI-10
INPUT
4V TO 28V
C2
22µF
OUTPUT
1.05V, 10A
C3
110µF
Rev. 2.0 March 2019
www.aosmd.com
Page 2 of 15





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