AIC1730
150mA, Low Noise, Low Dropout Linear Regulator
Analog Integrations Corporation 4F, 9 Industry E. 9th Rd, Science-Based Industrial Park, Hsinchu, Taiwan
DS-1730-01 051702
TEL: 886-3-5772500
FAX: 886-3-5772510
www.analog.com.tw
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FEATURES
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Available in
2% Output Tolerance.
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1.8V to 3.3V Output Voltage with 0.1V Increment.
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Active Low Shutdown Control.
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Very Low Quiescent Current.
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Very Low Dropout Voltage.
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Miniature Package (SOT-23-5 & SOT-23-6W)
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Short Circuit and Thermal Protection.
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Very Low Noise.
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APPLICATIONS
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Cellular Telephones.
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Pagers.
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Personal Communication Equipment.
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Cordless Telephones.
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Portable Instrumentation.
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Portable Consumer Equipment.
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Radio Control Systems.
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Low Voltage Systems.
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Battery Powered Systems.
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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 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
C
IN
1
F
V
IN
BP
VOUT
SHDN
GND
VIN
AIC1730
C
OUT
1
F
C
BP
0.1
F
V
SHDN
V
OUT
+
+
Low Noise Low Dropout Linear Regulator
AIC1730
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ORDERING INFORMATION
PACKING TYPE
TR: TAPE & REEL
BG: BAG
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.
AIC1730-XXCXXX
Example: AIC1730-18CVTR
1.8V Version, in SOT-23-5 Package &
Tape & Reel Packing Type
PIN CONFIGURATION
3
2
1
4
6
5
SOT-23-5 (CV)
TOP VIEW
1: VIN
2: GND
3: SHDN
4: BP
5: VOUT
SOT-23-6W (CQ)
TOP VIEW
1: SHDN
2: GND
3: BP
4: VOUT
5: GND
6: VIN
3
2
1
4
5
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ABSOLUTE MAXIMUM RATINGS
Supply Voltage
.................... ... ... ... ... ... ... ... ... ... ... ... ..... ... ... ... ... ... ... ....................12V
Operating Temperature Range
.... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .....-40C~85C
Storage Temperature Range ................... ... ... ... ... ... ... ... ... ... ... ... ... ... .........-65C~150C
Shutdown Terminal Voltage ..... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ..............12V
Noise Bypass Terminal Voltage .... ... ... ... ... ... ... ... ... ... ... .... ... ... ... ... ... ... ... ... ..............5V
Thermal Resistance (Junction to Case)
SOT-23-5 ... ....... ... ... ..... ... ... ..... ... ... ..130
C /W
Thermal Resistance Junction to Ambient SOT-23-5 ... ....... ... ..... ... ... ... ..... ... ... ..220
C /W
(Assume no ambient airflow, no heatsink)
AIC1730
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ELECTRICAL CHARACTERISTICS
(C
IN
=1
F , C
OUT
=10
F, T
J
=25
C, unless
otherwise specified)
PARAMETER
TEST CONDITIONS
SYMBOL MIN.
TYP. MAX.
UNIT
Quiescent Current
I
OUT
= 0mA, V
IN
= 3.6~12V
I
Q
55
80
A
Standby Current
V
IN
= 3.6~8V , output OFF
I
STBY
0.1
A
GND Pin Current
I
OUT
= 0.1~150mA
I
GND
55
80
A
Continuous Output Current
V
IN
= V
OUT
+ 1V
I
OUT
150
mA
Output Current Limit
V
IN
= V
OUT
+ 1V , V
OUT
= 0V
I
IL
150
220
mA
Output Voltage Tolerance
V
IN
= V
OUT
+ 1V , no load
V
OUT
-2
2
%
Temperature Coefficient
TC
50
150
ppm/C
Line Regulation
V
IN
= V
OUT(TYP)
+ 1V to
V
OUT(TYP)
+ 6V
V
LIR
2
7
mV
Load Regulation
V
IN
= 5V ,
I
OUT
= 0.1~150mA
V
LOR
7
25
mV
I
OUT
= 50 mA
90
160
mV
I
OUT
= 100 mA
140
230
mV
Dropout Voltage (1)
I
OUT
= 150 mA
V
OUT
2.5V
V
DROP1
200
350
mV
Dropout Voltage (2)
I
OUT
=150 mA
V
OUT
<2.5V
V
DROP2
700
mV
Noise Bypass Terminal Voltage
V
REF
1.23
V
Output Noise
C
BP
= 0.1
F , f = 1KHz
V
IN
= 5V
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0.46
Hz
V
SHUTDOWN TERMINAL SPECIFICATIONS
Shutdown Pin Current
I
SHDN
0.1
A
Shutdown Pin Voltage (ON)
Output ON
V
SHDN
(ON
1.6
V
Shutdown Pin Voltage (OFF)
Output OFF
V
SHDN
(OFF)
0.6
V
Shutdown Exit Delay Time
C
BP
= 0.1
F , C
OUT
= 1
F,
I
OUT
=30mA
t
300
S
THERMAL PROTECTION
Thermal Shutdown Temperature
T
SD
155
C
AIC1730
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TYPICAL PERFORMANCE CHARACTERISTICS
V
OUT
+1V
V
OUT
+3V
V
IN
2V/DIV
V
OUT
50mV/DIV
TIME (100
S/DIV)
I
OUT
=1mA,C
BP
=0.1
F
C
OUT
=10
F
Fig. 1 Line Transient Response
Time (100
S/DIV)
V
OUT
+1V
V
OUT
+3V
V
IN
2V/DIV
V
OUT
50mV/DIV
I
OUT
=1mA,C
BP
=0.1
F
C
OUT
=1
F
Fig. 2 Line Transient Response
Time (100
S/DIV)
V
OUT
+1V
V
OUT
+3V
V
IN
2V/DIV
V
OUT
50mV/DIV
I
OUT
=1mA,C
BP
=1
F
C
OUT
=1
F
Fig. 3 Line Transient Response
Time (100
S/DIV)
V
OUT
+1V
V
OUT
+3V
V
IN
2V/DIV
V
OUT
50mV/DIV
I
OUT
=1mA,C
BP
=1
F
C
OUT
=10
F
Fig. 4 Line Transient Response
Time (250
S/DIV)
V
OUT
2V/DIV
I
OUT
=30mA,C
BP
=0.01
F
C
OUT
=3.3
F
Fig. 5 Shutdown Exit Delay
V
SHDN
2V/DIV
Time (250
S/DIV)
V
OUT
2V/DIV
I
OUT
=30mA,C
BP
=0.1
F
C
OUT
=3.3
F
Fig. 6 Shutdown Exit Delay
V
SHDN
2V/DIV
AIC1730
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TYPICAL PERFORMANCE CHARACTERISTICS
(Continued)
Time (250
S/DIV)
V
OUT
2V/DIV
I
OUT
=10mA,C
BP
=0.1
F
C
OUT
=1
F
Fig. 7 Shutdown Exit Delay
V
SHDN
2V/DIV
TIME (250
S/DIV)
V
OUT
2V/DIV
I
OUT
=10mA,C
BP
=0.1
F
C
OUT
=10
F
Fig. 8 Shutdown Exit Delay
V
SHDN
2V/DIV
I
OUT
=0mA
I
OUT
=60mA
I
OUT
Time (1mS/DIV)
V
OUT
20mV/DIV
C
BP
=0.1
F
C
OUT
=1
F
Fig. 9 Load Transient Response
I
OUT
=0mA
I
OUT
=60mA
I
OUT
TIME (1mS/DIV)
V
OUT
20mV/DIV
C
BP
=0.1
F
C
OUT
=10
F
Fig. 10 Load Transient Response
I
OUT
=0mA
I
OUT
=90mA
I
OUT
V
OUT
20mV/DIV
C
BP
=0.1
F
C
OUT
=1
F
Fig. 11 Load Transient Response
Time (1mS/DIV)
Time (1mS/DIV)
I
OUT
=0mA
I
OUT
=90mA
I
OUT
V
OUT
20mV/DIV
C
B
P
=0.1
F
C
OUT
=10
F
Fig. 12 Load Transient Response
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