AOZ1017AI Datasheet, PDF (1/15 Pages) Alpha & Omega Semiconductors – EZBuck™ 3A Simple Regulator

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
● 50mΩ 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
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
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