AOZ1017DI 查看數據表（PDF） - Alpha and Omega Semiconductor
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AOZ1017DI Datasheet PDF : 16 Pages
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AOZ1017D
EZBuck™ 3A Simple Regulator
General Description
The AOZ1017D is a high efficiency, simple to use, 3A
buck regulator. The AOZ1017D 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 AOZ1017D comes in a 5x4 DFN-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 5x4 DFN-8 package
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
AOZ1017D LX
COMP
FB
C5
AGND GND
L1
4.7µH
D1
VOUT
3.3V
R1
C2, C3
22µF Ceramic
R2
Rev. 1.1 April 2009
Figure 1. 3.3V/3A Buck Regulator
www.aosmd.com
Page 1 of 16
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