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Alpha & Omega Semiconductors
Alpha & Omega Semiconductors

AOZ1017A Datasheet Preview

AOZ1017A Datasheet

3A Simple Regulator

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AOZ1017A pdf
AOZ1017A
EZBuck™ 3A Simple Regulator
General Description
The AOZ1017A is a high efficiency, simple to use, 3A
buck regulator. The AOZ1017A works from a 4.5V to 16V
input voltage range, and provides up to 3A of continuous
output current with an output voltage adjustable down to
0.8V.
The AOZ1017A comes in an SO-8 package and is rated
over a -40°C to +85°C ambient temperature range.
Features
4.5V to 16V operating input voltage range
50minternal PFET switch for high efficiency:
up to 95%
Internal soft start
Output voltage adjustable to 0.8V
3A continuous output current
Fixed 500kHz PWM operation
Cycle-by-cycle current limit
Short-circuit protection
Output over voltage protection
Thermal shutdown
Small size SO-8 packages
Applications
Point of load DC/DC conversion
PCIe graphics cards
Set top boxes
DVD drives and HDD
LCD panels
Cable modems
Telecom/Networking/Datacom equipment
Typical Application
VIN
C1
22µF Ceramic
VIN
From µPC
RC
CC
EN U1
AOZ1017A LX
COMP
FB
C5
AGND GND
L1
4.7µH
D1
VOUT
3.3V
R1
C2, C3
22µF Ceramic
R2
Figure 1. 3.3V/3A Buck Regulator
Rev. 1.2 April 2009
www.aosmd.com
Page 1 of 15
Free Datasheet http://www.datasheet4u.com/



Alpha & Omega Semiconductors
Alpha & Omega Semiconductors

AOZ1017A Datasheet Preview

AOZ1017A Datasheet

3A Simple Regulator

No Preview Available !

AOZ1017A pdf
Ordering Information
Part Number
AOZ1017AI
AOZ1017AIL
Ambient Temperature Range
-40°C to +85°C
Package
SO-8
AOS Green Products use reduced levels of Halogens, and are also RoHS compliant.
Please visit www.aosmd.com/web/quality/rohs_compliant.jsp for additional information.
AOZ1017A
Environmental
RoHS
Green Product
Pin Configuration
VIN 1
PGND 2
AGND 3
FB 4
SO-8
(Top View)
8 LX
7 LX
6 EN
5 COMP
Pin Description
Pin
Number
1
2
3
4
5
6
7, 8
Pin Name
VIN
PGND
AGND
FB
COMP
EN
LX
Pin Function
Supply voltage input. When VIN rises above the UVLO threshold the device starts up.
Power ground. Electrically needs to be connected to AGND.
Reference connection for controller section. Also used as thermal connection for controller
section. Electrically needs to be connected to PGND.
The FB pin is used to determine the output voltage via a resistor divider between the output and
GND.
External loop compensation pin.
The enable pin is active HIGH. Connect EN pin to VIN if not used. Do not leave the EN pin floating.
PWM output connection to inductor. Thermal connection for output stage.
Rev. 1.2 April 2009
www.aosmd.com
Page 2 of 15
Free Datasheet http://www.datasheet4u.com/


Part Number AOZ1017A
Description 3A Simple Regulator
Maker Alpha & Omega Semiconductors
Total Page 15 Pages
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