Low Noi Low Dropout, 150mA Linear Regulator
n FEATURES
l Available in ±2% Output Tolerance.
l 1.8V to 3.3V Output Voltage with 0.1V Increment.
l Active Low Shutdown Control.
l Very Low Quiescent Current.
l Very Low Dropout Voltage.
l Miniature Package (SOT-23-5 & SOT-23-6W)
l Short Circuit and Thermal Protection.
朝乾夕惕l Very Low Noi.
n APPLICATIONS
l Cellular Telephones.
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l Pagers.
l Personal Communication Equipment.
空天猎观后感l Cordless Telephones.
l Portable Instrumentation.
l Portable Consumer Equipment.
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l Radio Control Systems.
l Low Voltage Systems.
l Battery Powered Systems.n DESCRIPTION
T he AIC1730 is a low noi, low dropout linear regulator, houd in a small SOT-23-5 & SOT-23-6W package. The device is in the “ON” state when the SHDN pin is t to a logic high level.
An internal P-MOSFET pass transistor is ud to achieve a low dropout voltage of 90mV at 50mA load current. It offers high precision output voltage of ±2%. The very low quiescent current and low dropout voltage make this device ideal for battery powered applications. The internal rever bias protection eliminates the requirement for a rever voltage protection diode. The high ripple rejection and low noi provide enhanced performance for critical applications. An external capacitor can be connected to the noi bypass pin to reduce the output noi level.
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n TYPICAL APPLICATION CIRCUIT
V OUT
Low Noi Low Dropout Linear Regulator
n ORDERING INFORMATION
n ABSOLUTE MAXIMUM RATINGS
S ………………………………..…………………....................12V P ……………………………………….…………….............500mW O perating Temperature Range.………………………………………………….....-40ºC~85ºC S torage .…………………………………….........-65ºC~150ºC S hutdown Terminal Voltage..………………………………………………………..............12V N oi Bypass Termin
al Voltage.…………………………….………………………..............5V
n ELECTRICAL CHARACTERISTICS(C IN=1µF , C OUT=10µF, T J=25°C, unless otherwi specified)
n TYPICAL PERFORMANCE CHARACTERISTICS
V OUT +1V
V OUT +3V
七十二层奇楼
V I N 2V/DIV
V OUT 50mV/DIV
TIME (100µS/DIV)
I OUT =1mA,C BP =0.1µF C OUT =10µF
LINE TRANSIENT RESPONSE
TIME (100µS/DIV)
V OUT +1V
V OUT +3V
V I N 2V/DIV
V OUT 50mV/DIV
I OUT =1mA,C BP =0.1µF C OUT =1µF
LINE TRANSIENT RESPONSE
TIME (100µS/DIV)V OUT +1V
V OUT +3V
V I N 2V/DIV
V OUT 50mV/DIV
I OUT =1mA,C B P =1µF C OUT =1µF
LINE TRANSIENT RESPONSE TIME (100µS/DIV)
V OUT +1V
V OUT +3V
V I N 2V/DIV
V OUT 50mV/DIV
I OUT =1mA,C BP =1µF C OUT =10µF
LINE TRANSIENT RESPONSE
TIME (250µS/DIV)V OUT 2V/DIV
I OUT =30mA,C BP =0.01µF C OUT =3.3µF
软件测试的流程
SHUTDOWN EXIT DELAY
TIME (250µS/DIV)
V OUT 2V/DIV
I OUT =30mA,C B P =0.1µF C OUT =3.3µF
SHUTDOWN EXIT DELAY
n TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
TIME (250µS/DIV)V OUT 2V/DIV
I OUT =10mA,C B P =0.1µF C OUT =1µF
SHUTDOWN EXIT DELAY
V SHDN 2V/DIV
TIME (250µS/DIV)
V OUT 2V/DIV
I OUT =10mA,C BP =0.1µF C OUT =10µF
SHUTDOWN EXIT DELAY
I OUT =0mA
I OUT =60mA
I OUT
TIME (1mS/DIV)
V OUT 20mV/DIV
C B P =0.1µF C OUT =1µF
LOAD TRANSIENT RESPONSE I OUT =0mA
I OUT =60mA
I OUT
TIME (1mS/DIV)
V OUT 20mV/DIV
C B P =0.1µF C OUT =10µF
LOAD TRANSIENT RESPONSE
I OUT =0mA I OUT =90mA I OUT V OUT 20mV/DIV
C B P =0.1µF C OUT =1µF
LOAD TRANSIENT RESPONSE TIME (1mS/DIV)TIME (1mS/DIV)
I OUT =0mA
I OUT =90mA
事故管理制度
I OUT
V OUT 20mV/DIV
C BP =0.1µF C OUT =10µF
LOAD TRANSIENT RESPONSE
