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Alpha & Omega Semiconductors

AOZ2262QI-10 Datasheet Preview

AOZ2262QI-10 Datasheet

28V/10A Synchronous EZBuck Regulator

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AOZ2262QI-10
28V/10A Synchronous EZBuckTM Regulator
General Description
The AOZ2262QI-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 AOZ2262QI-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
2.7V to 28V
10A continuous output current
Output voltage adjustable down to 0.8V (±1.0%)
Low RDS(ON) internal NFETs
22mΩ high-side
8mΩ low-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. 1.0 December 2015
www.aosmd.com
Page 1 of 16




Alpha & Omega Semiconductors

AOZ2262QI-10 Datasheet Preview

AOZ2262QI-10 Datasheet

28V/10A Synchronous EZBuck Regulator

No Preview Available !

AOZ2262QI-10
Typical Application
RTON
5V
R3
100kΩ
Power Good
C4
4.7μF
Off On
CSS
TON
IN
VCC
BST
AOZ2262QI-10
PGOOD
LX
EN
PFM
SS
FB
AGND
PGND
C5
0.1μF
L1
1μH
Input
2.7V to 28V
C2
22μF
Output
1.05V, 10A
R2
C3
88μF
R1
Power Ground
Analog Ground
Recommended Start-Up Sequence
VIN
VCC
EN
50μs
5V
5V
Ordering Information
Part Number
AOZ2262QI-10
Ambient Temperature Range
-40°C to +85°C
Package
22-Pin 4mm x 4mm QFN
AOS Green Products use reduced levels of Halogens, and are also RoHS compliant.
Please visit www.aosmd.com/media/AOSGreenPolicy.pdf for additional information.
Environmental
Green Product
Rev. 1.0 December 2015
www.aosmd.com
Page 2 of 16


Part Number AOZ2262QI-10
Description 28V/10A Synchronous EZBuck Regulator
Maker Alpha & Omega Semiconductors
Total Page 16 Pages
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