LR1117C Datasheet, PDF (1/10 Pages) Leshan Radio Company – 1A Bipolar Linear Regulator

1A Bipolar Linear Regulator
LESHAN RADIO COMPANY, LTD.
LR1117C
DESCRIPTION
LR1117C is a series of low dropout thre-e terminal
regulators with a dropout of 1.3V at 1A load current.
LR1117C features a very low standby current 2mA
compared to 5mA of competitor.
Other than a fixed version, Vout = 1.2V, 1.5V, 1.8V,
2.5V, 3.3V, 5V, and 12V, LR1117C has an adjustable
version, which can provide an output voltage from
1.25 to 12V with only two external resistors.
LR1117C offers thermal shut down and current limit
functions, to assure the stability of chip and power
system. And it uses trimming technique to
guarantee output voltage accuracy within 2%.
Other output voltage accuracy can be customized
on demand, such as 1%
LR1117C is available in SOT-223,TO-252 power
package.
FEATURES
 Other than a fixed version and an adjustable
version, output value can be customized on
demand.
 Maximum output current is 1A
 Range of operation input voltage: Max 12V
 Standby current: 2mA (typ.)
 Line regulation: 0.1%/V (typ.)
 Load regulation: 10mV (typ.)
 Environment Temperature: -40C~85C
APPLICATIONS
 Power Management for Computer Mother
Board, Graphic Card
 BLD Monitor and BLD TV
 DVD Decode Board
 ADSL Modem
 Post Regulators for Switching Supplies
TYPICAL APPLICATION
LR1117C
Vin
Vin Vout
10uF
Gnd
Vout
10uF
Application circuit of LR1117C fixed version
NOTE: Input capacitor (Cin=10uF) and Output
capacitor (Cout=10uF) are recommended in all
application circuit. Tantalum capacitor is
recommended.
TYPICAL ELECTRICAL CHARACTERISTIC
LR1117C
Feb 2011 Ver1.2
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