AOZ1037 Просмотр технического описания (PDF) - Alpha and Omega Semiconductor
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AOZ1037 Datasheet PDF : 14 Pages
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AOZ1037
EZBuck™ 5A Synchronous Buck Regulator
General Description
The AOZ1037 is a high efficiency, simple to use, 5A
synchronous buck regulator. The AOZ1037 works from a
4.5V to 18V input voltage range, and provides up to 5A
of continuous output current with an output voltage
adjustable down to 0.8V.
The AOZ1037 comes in an exposed pad SO-8 packages
and is rated over a -40°C to +85°C ambient temperature
range.
Features
z 4.5 to 18V operating input voltage range
z Synchronous rectification: 55mΩ internal high-side
switch and 19mΩ Internal low-side switch
z High efficiency: up to 95%
z Internal soft start
z Active high power good state
z Output voltage adjustable to 0.8V
z 5A continuous output current
z Fixed 500kHz PWM operation
z Cycle-by-cycle current limit
z Pre-bias start-up
z Short-circuit protection
z Thermal shutdown
z Exposed pad SO-8 package
Applications
z Point of load DC/DC conversion
z LCD TVs
z Set top boxes
z DVD / Blu-ray players/recorders
z Cable modems
z PCIe graphics cards
z Telecom/Networking/Datacom equipment
Typical Application
VIN
C1
22µF
RC
CC
5V
R3
VIN
PGOOD
EN
AOZ1037 LX
COMP
FB
AGND
PGND
L1 4.7µH
R1
R2
VOUT
C2, C3
22µF
Rev. 1.1 September 2010
Figure 1. 3.3V/5A Synchronous Buck Regulator
www.aosmd.com
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