AOZ1020 データシートの表示（PDF） - Alpha and Omega Semiconductor
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AOZ1020 Datasheet PDF : 15 Pages
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AOZ1020
EZBuck™ 2A Synchronous Buck Regulator
General Description
The AOZ1020 is a synchronous high efficiency, simple
to use, 2A buck regulator. The AOZ1020 works from a
4.5V to 16V input voltage range, and provides up to 2A
of continuous output current with an output voltage
adjustable down to 0.8V.
The AOZ1020 comes in an SO-8 packages and is rated
over a -40°C to +85°C ambient temperature range.
Features
● 4.5V to 16V operating input voltage range
● Synchronous rectification: 130mΩ internal high-side
switch and 65mΩ internal low-side switch
● High efficiency: up to 95%
● Internal soft start
● Active high power good state
● Output voltage adjustable to 0.8V
● 2A continuous output current
● Fixed 500kHz PWM operation
● Cycle-by-cycle current limit
● Pre-bias start-up
● Short-circuit 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
RC
CC
5V DC
R3
VIN
PGOOD
EN
AOZ1020 LX
L1 4.7µH
COMP
R1
FB
AGND
PGND
R2
VOUT
C2, C3
22µF Ceramic
Rev. 1.5 December 2010
Figure 1. 3.3V/2A Buck Regulator
www.aosmd.com
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