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AOZ1018

Alpha and Omega Semiconductors
Part Number AOZ1018
Manufacturer Alpha and Omega Semiconductors
Description EZBuck 2A Simple Regulator
Published Apr 5, 2010
Detailed Description AOZ1018 EZBuck™ 2A Simple Regulator www.DataSheet4U.com General Description The AOZ1018 is a high efficiency, simple to ...
Datasheet PDF File AOZ1018 PDF File

AOZ1018
AOZ1018


Overview
AOZ1018 EZBuck™ 2A Simple Regulator www.
DataSheet4U.
com General Description The AOZ1018 is a high efficiency, simple to use, 2A buck regulator.
The AOZ1018 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 AOZ1018 comes in 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 130 mΩ internal PFET switch for high efficiency: up to 95% Internal soft start Output voltage adjustable to 0.
8V 2A continuous output current Fixed 500kHz PWM operation Cycle-by-cycle current limit 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 C1 22µF Cd 1µF VIN L1 4.
7µH From µPC EN VOUT AOZ1018 COMP RC CC LX R1 FB D1 +3.
3V Output @ 2A C2 47µF R2 AGND PGND Figure 1.
3.
3V/2A Buck Regulator Rev.
1.
0 November 2006 www.
aosmd.
com Page 1 of 14 AOZ1018 Ordering Information Part Number AOZ1018AI HS nt Ro mplia Co www.
DataSheet4U.
com Ambient Temperature Range -40°C to +85°C Package SO-8 Environmental RoHS All AOS Products are offered in packaging with Pb-free plating and compliant to RoHS standards.
Please visit wwww.
aosmd.
com/web/rohs_compliant.
jsp for additional information.
Pin Configuration NC VIN AGND FB 1 2 3 4 8 7 6 5 PGND LX EN COMP SO-8 (Top View) Pin Description Pin Number 1 2 3 4 5 6 7 8 Pin Name NC VIN AGND FB COMP EN LX PGND Not connected.
Pin Function Supply voltage input.
When VIN rises above the UVLO threshold the device starts up.
Reference connection for controller section.
Also used as thermal connection for controller section.
Electrically needs to be connected to PGND.
The FB pin is used to determine the output voltage via a resistor divider between the ...


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