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AiT Semiconductor

A1117 Datasheet Preview

A1117 Datasheet

1A LOW-DROPOUT POSITIVE VOLTAGE REGULATOR

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AiT Semiconductor Inc.
www.ait-ic.com
A1117
1A LOW-DROPOUT POSITIVE VOLTAGE REGULATOR
THERMAL PROTECTION AND 1.4A CURRENT LIMIT
DESCRIPTION
The A1117 is designed to provide 1A for requiring
high efficiency applications.
FEATURES
Output Current of 1A Maximum
Three-Terminal Adjustable or Fixed Outputs
The A1117 series of positive fixed voltage (VOUT =
1.8V, 2.5V, 2.8V, 3.3V, 5V) and adjustable version,
which can provide an output voltage from 1.25V to
13.8V with only two external resistors.
Maximum Input Voltage: 15V
Fast Transient Response
Current Limit, Safe Operating and Thermal
Shutdown Protection
The A1117 offers current limiting and thermal
protection to assure the stability of chip and power
system. And the on chip trimming technique to
guarantee output voltage accuracy within ±2%.
The A1117 is available in SOT-223 and TO-252
packages.
Line Regulation: 0.2%
Load Regulation: 0.4%
Environment Temperature: -50oC~+140oC
Available in SOT-223 and TO-252 Package.
APPLICATION
High Efficiency Linear Regulators
Post Regulator for Switching DC/DC Converter
Power Management for M/B and Graphic Card
TYPICAL APPLICATION
2.85V Model for SCSI-2 Active Termination
Battery Charger
LCD Monitor and LCD TV
DVD Decode Board
ADSL Modem
ORDERING INFORMATION
Adjustable Output Version
VOUT=VREF(1+R2/R1)+IADJ*R2
The output of A1117-ADJ provides any output voltage between
1.25V~13.8V can be available by choosing two external resistors.
Fixed Output Version
Package Type
Part Number
A1117NR-XX
SOT-223
TO-252
N A1117NVR-XX
A1117NR-ADJ
A1117NVR-ADJ
A1117DR-XX
A1117DVR-XX
D A1117DR-ADJ
A1117DVR-ADJ
XX: Output Voltage, 33=3.3V, 50=5V,
NOTE
ADJ: Adjustable
R: Tape & Reel
V: GREEN PACKAGE
AiT provides all Pb free products
Suffix “ V” means Green Package
REV1.2 - JAN 2006 RELEASED – SEP 2008 REVISED -
-1-




AiT Semiconductor

A1117 Datasheet Preview

A1117 Datasheet

1A LOW-DROPOUT POSITIVE VOLTAGE REGULATOR

No Preview Available !

AiT Semiconductor Inc.
www.ait-ic.com
PIN DESCIPTION
A1117
1A LOW-DROPOUT POSITIVE VOLTAGE REGULATOR
THERMAL PROTECTION AND 1.4A CURRENT LIMIT
Top View
Top View
Top View
Top View
Pin #
1
2
3
SOT-223
A1117NR/NVR-XX A1117NR/NVR-ADJ
GND
ADJ
VOUT
VOUT
VIN VIN
TO-252
A1117DR/DVR-XX A1117DR/DVR-ADJ
GND
ADJ
VOUT
VOUT
VIN VIN
ABSOLUTE MAXIMUM RATINGS
Maximum Input Voltage
15V
Operating Junction Temperature (TJ)
150 oC
Environment Temperature (TA)
140 oC
Storage Temperature Range (Ts)
-65 oC to +150 oC
Lead Temperature (soldiering, 10 seconds)
260 oC, 10s
Stresses above may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at
these or any other conditions beyond those indicated in the Electrical Characteristics is not implied. Exposure to absolute maximum
rating conditions for extended periods may affect device reliability.
REV1.2 - JAN 2006 RELEASED – SEP 2008 REVISED -
-2-


Part Number A1117
Description 1A LOW-DROPOUT POSITIVE VOLTAGE REGULATOR
Maker AiT Semiconductor
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A1117 Datasheet PDF






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