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YANGJING MICROELECTRONICS
YANGJING MICROELECTRONICS


U1117

1A LOW DROPOUT LINEAR REGULATOR


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U1117 pdf
SHENZHEN YANGJING MICROELECTRONICS CO.,LTD
1A LOW DROPOUT LINEAR REGULATOR
GENERAL DESCRIPTION
The 1117 is a series of low dropout three-terminal egulators with a dropout of 1.15V at 1A output current.
The 1117 series provides current limiting and thermal shutdown. Its circuit includes a trimmed bandgap
reference to assure output voltage accuracy to be within 1%. Current limit is trimmed to ensure specified
output Current and controlled short-circuit current. On-chip thermal shutdown provides protection against any
combination of overload and ambient temperature that would create excessive junction temperature.
The 1117 has an adjustable version, that can provide the output voltage from 1.25V to 5V with only 2
external resistors.
The 1117 series is available in the industry standard SOT-223,SOT-89,TO-220,TO-252 and TO-263 power
packages.
FEATURES
Low Dropout Voltage: 1.15V at 1A Output Current
Trimmed Current Limit
On-Chip Thermal Shutdown
Three-Terminal Adjustable or Fixed 1.5V, 1.8V, 2.5V, 3.3V, 5V
Operation junction Temperature: 0 to125
APPLICATIONS
PC Motherboard
LCD Monitor
Graphic Card
DVD-Video player
NIC/Switch
Telecom Modem
ADSL Modem
Printer and other peripheral Equipment
YANGJING
MICROELECTRONICS
www.szyangjing.com
4007-888-606 2



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U1117 pdf
PIN CONFIGURATIONS
T Package
(SOT-223)
A Package
(SOT-89)
P Package
(TO-220)
U Package
(TO-252)
B Package
(TO-263)
ADJ/GND
OUTPUT
INPUT
Figure 2. Pin Configurations of 1117
D Package
(TO-251)
YANGJING
MICROELECTRONICS
www.szyangjing.com
4007-888-606 2



Part Number U1117
Description 1A LOW DROPOUT LINEAR REGULATOR
Maker YANGJING MICROELECTRONICS - YANGJING MICROELECTRONICS
Total Page 8 Pages
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