AIC1730
Low Noise Low Dropout, 150mA Linear Regulator
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FEATURES
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DESCRIPTION
The AIC1730 is a low noise, low dropout linear
regulator, housed in a small SOT-23-5 & SOT-23-
6W package. The device is in the “ON” state
when the
SHDN
pin is set to a logic high level.
An internal P-MOSFET pass transistor is used 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 reverse bias
protection eliminates the requirement for a
reverse voltage protection diode. The high ripple
rejection
and
low
noise
provide
enhanced
Available in
±2%
Output Tolerance.
1.8V to 3.3V Output Voltage with 0.1V Increment.
Active Low Shutdown Control.
Very Low Quiescent Current.
Very Low Dropout Voltage.
Miniature Package (SOT-23-5 & SOT-23-6W)
Short Circuit and Thermal Protection.
Very Low Noise.
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APPLICATIONS
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Cellular Telephones.
Pagers.
Personal Communication Equipment.
Cordless Telephones.
Portable Instrumentation.
Portable Consumer Equipment.
Radio Control Systems.
Low Voltage Systems.
Battery Powered Systems.
performance for critical applications. An external
capacitor can be connected to the noise bypass
pin to reduce the output noise level.
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TYPICAL APPLICATION CIRCUIT
V
IN
VIN
C
IN
1
µ
F
+
GND
VOUT
+
C
OUT
1
µ
F
V
OUT
SHDN
BP
C
BP
0.1
µ
F
V
SHDN
AIC1730
Low Noise Low Dropout Linear Regulator
Analog Integrations Corporation
DS-1730-00
May 22, 01
4F, 9, Industry E. 9th Rd, Science Based Industrial Park, Hsinchu Taiwan, ROC
TEL: 886-3-5772500
FAX: 886-3-5772510
www.analog.com.tw
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AIC1730
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ORDERING INFORMATION
AIC1730-XCX
PACKAGE TYPE
V: SOT-23-5
Q: SOT-23-6W
OUTPUT VOLTAGE
18: 1.8V
.
.
.
285: 2.85V
.
.
.
33: 3.3V
The output voltage is available
by 0.1V per step.
ORDER NUMBER
AIC1730-18CV
:
:
:
AIC1730-33CV
(SOT-23-5)
AIC1730-18CQ
:
:
:
AIC1730-33CQ
(SOT-23-6W )
FRONT VIEW
PIN CONFIGURATION
FRONT VIEW
VOUT
5
BP
4
1
2
3
VIN GND SHDN
VIN GND VOUT
6
5
4
1
2
3
BP
SHDN GND
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ABSOLUTE MAXIMUM RATINGS
Supply Voltage
Power Dissipation
.................… … … … … … … … … … … … ..… … … … … … … ....................12V
.............… … … … … … … … … … … … … … … .… … … … … .............500mW
.… … … … … … … … … … … … … … … … … … … .....-40ºC~85ºC
................… … … … … … … … … … … … … … .........-65ºC~150ºC
..… … … … … … … … … … … … … … … … … … … … … ..............12V
.… … … … … … … … … … … .… … … … … … … … … ..............5V
Operating Temperature Range
Storage Temperature Range
Shutdown Terminal Voltage
Noise Bypass Terminal Voltage
2
AIC1730
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ELECTRICAL CHARACTERISTICS
otherwise specified)
(C
IN
=1µF , C
OUT
=10µF, T
J
=25°C, unless
PARAMETER
Quiescent Current
Standby Current
GND Pin Current
Continuous Output Current
Output Current Limit
Output Voltage Tolerance
Temperature Coefficient
Line Regulation
TEST CONDITIONS
I
OUT
= 0mA, V
IN
= 3.6~12V
V
IN
= 3.6~8V , output OFF
I
OUT
= 0.1~150mA
V
IN
= V
OUT
+ 1V
V
IN
= V
OUT
+ 1V , V
OUT
= 0V
V
IN
= V
OUT
+ 1V , no load
V
IN
= V
OUT（TYP
）
+ 1V to
V
OUT（TYP
）
+ 6V
SYMBOL
I
Q
I
STBY
I
GND
I
OUT
I
IL
V
OUT
TC
∆V
LIR
∆V
LOR
MIN.
TYP.
55
MAX.
80
0.1
UNIT
µA
µA
µA
mA
mA
55
80
150
150
-2
220
2
50
2
150
7
%
ppm/ºC
mV
Load Regulation
Dropout Voltage (1)
V
IN
= 5V ,
I
OUT
= 0.1~150mA
I
OUT
= 50 mA
I
OUT
= 100 mA
I
OUT
= 150 mA
V
OUT
≥2.5V
7
90
25
160
230
350
700
mV
mV
mV
mV
mV
V
V
DROP1
140
200
Dropout Voltage (2)
Noise Bypass Terminal Voltage
Output Noise
I
OUT
=150 mA
V
OUT
<2.5V
V
DROP2
V
REF
1.23
0.46
C
BP
= 0.1µF , f = 1KHz
V
IN
= 5V
?
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µ
V
Hz
µA
V
0.6
V
µS
SHUTDOWN TERMINAL SPECIFICATIONS
Shutdown Pin Current
Shutdown Pin Voltage (ON)
Shutdown Pin Voltage (OFF)
Shutdown Exit Delay Time
THERMAL PROTECTION
Thermal Shutdown Temperature
T
SD
155
ºC
Output ON
Output OFF
C
BP
= 0.1µF , C
OUT
= 1µF,
I
OUT
=30mA
I
SHDN
V
SHDN
（ON）
V
SHDN
（OFF）
△t
300
1.6
0.1
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