JIANGSU CHANGJING ELECTRONICS TECHNOLOGY CO., LTD
1A LOW DROPOUT LINEAR REGULATOR
CJU1117B-XXX
TO-252-2L
FEATURES
Low Dropout Voltage: 1.3V at 1A Output Current
Trimmed Current Limit
1. GND / ADJ
2. OUTPUT
3. IN
On-Chip Thermal Shutdown
Three-Terminal Adjustable or Fixed 1.8V, 2.5V, 3.3V, 5V
Operation Junction Temperature: -40 to 125°C
GENERAL DESCRIPTION
The CJU1117B-XXX is a series of low dropout three-terminal regulators with a dropout of 1.3V at 1A
output current.
The CJU1117B-XXX series provides current limiting and thermal shutdown. Its circuit includes a
trimmed bandage. reference to assure output voltage accuracy to be within 1.5%. 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 CJU1117B-XXX has an adjustable version, that can provide the output voltage from 1.25V to 12V
with only 2 external resistors.
APPLICATIONS
PC Motherboard
LCD Monitor
Graphic Card
DVD-Video Player
NIC/Switch
Telecom Modem
ADSL Modem
Printer and other peripheral Equipment
MARKING
"U1117B": Device serial number.
"X.X": Output voltage, for example, if VOUT = 3.0V, "X.X" = 3.0.
"YYYY": Code composed of four uppercase letters, indicates weekly record information of production.
U1117B
X.X YYYY
www.jscj-elec.com
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Rev. - 1.2