AOZ1017
EZBuck™ 3A Simple Regulator
General Description
The AOZ1017 is a high efficiency, simple to use, 3A buck
regulator. The AOZ1017 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 AOZ1017 comes in an SO-8 package and is rated
over a -40°C to +85°C ambient temperature range.
Features
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4.5V to 16V operating input voltage range
50m
Ω
internal 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
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Applications
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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
U1
L1
4.7µH
From µPC
EN
COMP
VOUT
3.3V
R1
AOZ1017
RC
CC
C5
LX
FB
D1
C2, C3
22µF Ceramic
R2
AGND
GND
Figure 1. 3.3V/3A Buck Regulator
Rev. 1.0 July 2007
www.aosmd.com
Page 1 of 16
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