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AOZ1117

Alpha & Omega Semiconductors
Part Number AOZ1117
Manufacturer Alpha & Omega Semiconductors
Description 1A Low Dropout Linear Regulator
Published Apr 17, 2011
Detailed Description 1A Low Dropout Linear Regulator AOZ1117 General Description The AOZ1117 is a low dropout positive adjustable or fixed-...
Datasheet PDF File AOZ1117 PDF File

AOZ1117
AOZ1117

Overview
1A Low Dropout Linear Regulator AOZ1117 General Description The AOZ1117 is a low dropout positive adjustable or fixed-mode regulator with minimum of 1A output current capability.
The product is specifically designed to provide well-regulated supply for low voltage IC applications such as high-speed bus termination and low current 3.
3V logic supply.
The AOZ1117 is also well suited for other applications such as VGA cards.
The AOZ1117 is guaranteed to have lower than 1.
4V dropout at full load current making it ideal to provide well-regulated outputs of 1.
25V to 5.
0V with 2.
75V to 14V input supply.
Features ● ● ● ● ● ● 1.
4V maximum dropout at full load current Fast transient response Output current limiting Built-in thermal shutdown Good noise rejection 3-terminal adjustable or fixed 1.
5V, 1.
8V, 2.
5V, 3.
3V, or 5.
0V TO252 package ● Applications ● ● PC peripheral Communication Typical Circuits Fixed Output Example Fixed Output Example VIN + 5V VIN + 5V 3 2 Adjustable Output Adjustable OutputExample Example VIN 5V VIN ++ 5V 3 3 IN VIN = 3.
3V V = 3.
3V VOUT OUT VIN V2 OUT = 3.
3V VOUT = 3.
3V VOUT V VOUT OUT ADJ/GND V 2 2 1 3 C1 10μF VIN C1 10μF VOUT 1 AOZ1117 ADJ/GND AOZ1117 ADJ/GND 1 1 C2 C2 10μF 10μF C1 10μF C1 10μF AOZ1117 ADJ/GND AOZ1117 R1 240Ω R1 R2 390Ω R2 240Ω C2 10μF C2 10μF 390Ω ! VOUT = VREF x 1 + R2 R1 V = 1.
250V VREF x 1 + V REF = OUT R2 R1 VREF = 1.
250V www.
DataSheet4U.
com Figure 1.
Rev.
1.
1 September 2008 www.
aosmd.
com Page 1 of 8 AOZ1117 Ordering Information Part Number AOZ1117TI-AAL AOZ1117TI-15L AOZ1117TI-18L AOZ1117TI-25L AOZ1117TI-33L AOZ1117TI-50L Output Voltage Adjustable 1.
5V 1.
8V 2.
5V 3.
3V 5.
0V Ambient Temperature Range Package Environmental -40°C to +85°C TO-252 Green Product • All AOS products are offered in packages with Pb-free plating and compliant to RoHS standards.
• Parts marked as Green Products (with “L” suffix) use reduced levels of Halogens, and are also RoHS compliant.
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