1A Bipolar Linear Regulator
DESCRIPTION
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: -40C~85C
BL1117 is a series of low dropout three-terminal
regulators with a dropout of 1.3V at 1A load current.
BL1117 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, BL1117 has an adjustable
version, which can provide an output voltage from
1.25 to 12V with only two external resistors.
BL1117 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%
APPLICATIONS
Power Management for Computer Mother
Board, Graphic Card
BLD Monitor and BLD TV
DVD Decode Board
ADSL Modem
BL1117 is available in SOT-223, TO-252 power
package.
Post Regulators for Switching Supplies
TYPICAL APPLICATION
TYPICAL ELECTRICAL CHARACTERISTIC
LC1117
BL1117
BL1117
Vout
Vin
Vin
Vout
Gnd
10uF
10uF
Application circuit of BL1117 fixed version
NOTE: Input capacitor (Cin=10uF) and Output
capacitor (Cout=10uF) are recommended in all
application circuit. Tantalum or MLCC capacitor is
recommended.
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