Datasheet AIC1732-52CX, AIC1732-50CX, AIC1732-38CX, AIC1732-37CX, AIC1732-36CX Datasheet (AIC)

µ

µ

AIC17

OUT

AIC1732
300mA Low Dropout Linear Regulator

n FEATURES

l Low Dropout Voltage of 130mV at 100mA

Output Current (5.2V Output Version).

l Guaranteed 300mA Output Current.
l Internal 1.3Ω P-MOSFET Draws no Base

Current.

l Low Ground Current at 55
l 2% Accuracy Output Voltage of 3.3V/ 3.4V/

A.

3.5V/ 3.6V/ 3.7V/ 3.8V/ 5.0V/ 5.2V.

l Input Voltage Range up to 12V.
l Needs only 1
l Current and Thermal Limiting.

F for Stability.

n APPLICATIONS

l Voltage Regulator for CD-ROM Drivers.
l Voltage Regulator for LAN Cards.
l Voltage Regulator for Microprocessor.
l Wireless Communication Systems.
l Battery Powered Systems.

n DESCRIPTION

The AIC1732 is a 3-pin low dropout linear
regulator. The superior characteristics of the
AIC1732 include zero base current loss, very
low dropout voltage, and 2% accuracy output
voltage. Typical ground current remains
approximately 55µA, from no load to
maximum loading conditions. Dropout voltage
at 100mA output current is exceptionally low:
130mV for the AIC1732-50 and AIC1732-52,
180mV for the AIC1732-33, AIC1732-34,
AIC1732-35, AIC1732-36, AIC1732-37 and
AIC1732-38. Output current limiting and
thermal limiting are built in to provide maximal
protection to the AIC1732 against fault
conditions.

The AIC1732 comes in the popular 3-pin
SOT-89 packages.

TYPICAL APPLICATION CIRCUIT

n

32

VOUT

++

V

10µF
C

OUT

VIN

V

IN

1µF
C

IN

GND

Low Dropout Linear Regulator

Analog Integrations Corporation 4F, 9, Industry E. 9th Rd, Science Based Industrial Park, Hsinchu Taiwan, ROC www.analog.com.tw

DS-1732-01 TEL: [phone] FAX: [phone]

52:

5.2V

AIC1732

n ORDERING INFORMATION

AIC1732-XXXXX

PACKAGING TYPE
X: SOT-89

TEMPERATURE RANGE
C: 0°C~70°C

OUTPUT VOLTAGE

33: 3.3V
34: 3.4V
35: 3.5V
36: 3.6V
37: 3.7V
38: 3.8V
50: 5.0V

ORDER NUMBER

AIC1732-33CX
AIC1732-34CX
AIC1732-35CX
AIC1732-36CX
AIC1732-37CX
AIC1732-38CX
AIC1732-50CX
AIC1732-52CX
SOT-89

PIN CONFIGURATION

FRONT VIEW
1: GND

2: VIN
3: VOUT

1 2 3

n ABSOLUTE MAXIMUM RATINGS

Input Supply Voltage...................................................…………..…….................... -0.3~12V

Operating Junction Temperature Range .....………........…………................ -40°C~ 125°C

Storage Temperature Range ....................……......................……….............. -65°C~150°C

Power Dissipation SOT-89 Package ....…...…................. 0.5W

n TEST CIRCUIT

Refer to the TYPICAL APPLICATION CIRCUIT

n ELECTRICAL CHARACTERISTICS (Ta=25 °C, C

otherwise specified.)

PARAMETER TEST CONDITIONS MIN. TYP. MAX. UNIT

Output Voltage No Load

AIC1732-52
AIC1732-50
AIC1732-38
AIC1732-37
AIC1732-35
AIC1732-33

Output Voltage

(Note 1) 50
Temperature
Coefficiency

VIN=5.5~12V
VIN=5.5~12V
VIN=4.1~12V
VIN=4.0~12V
VIN=4.0~12V
VIN=3.6~12V

=1µF, C

IN

5.100

4.900

3.725

3.625

3.430

3.235

=10µF, unless

OUT

5.2

5.0

3.8

3.7

3.5

3.3

5.300

5.100

3.875

3.775

3.570

3.365

V

150 PPM/°C

2

AIC1732

n ELECTRICAL CHARACTERISTICS (Continued)

PARAMETER TEST CONDITIONS MIN. TYP. MAX. UNIT

Line Regulation IL=1mA

AIC1732-52
AIC1732-50
AIC1732-38
AIC1732-37
AIC1732-35

AIC1732-33
Load Regulation
(Note 2)

AIC1732-52

AIC1732-50

AIC1732-38

AIC1732-37

AIC1732-35

AIC1732-33
Current Limit
(Note 3)

AIC1732-52

AIC1732-50

AIC1732-38

AIC1732-37

AIC1732-35

AIC1732-33
Dropout Voltage
(Note 4)

AIC1732s

AIC1732-52

AIC1732-50

AIC1732-38

AIC1732-37

AIC1732-35

AIC1732-33
Ground Current IO=0.1mA~I

AIC1732-52

AIC1732-50

AIC1732-38

AIC1732-37

AIC1732-35

AIC1732-33

MAX

VIN=5.5~12V
VIN=5.5~12V
VIN=4.1~12V
VIN=4.0~12V
VIN=4.0~12V

VIN=3.6~12V
VIN=7V, IL=0.1~300mA
VIN=7V, IL=0.1~300mA
VIN=5V, IL=0.1~300mA
VIN=5V, IL=0.1~300mA
VIN=5V, IL=0.1~300mA
VIN=5V, IL=0.1~300mA

VIN=7V, V
VIN=7V, V
VIN=7V, V
VIN=5V, V
VIN=5V, V
VIN=5V, V

OUT
OUT
OUT
OUT
OUT
OUT

=0V
=0V
=0V
=0V
=0V

=0V
IL=0.1mA
IL=300mA
IL=300mA
IL=300mA
IL=300mA
IL=300mA
IL=300mA

VIN=5.5~12V
VIN=5.5~12V
VIN=4~12V
VIN=4~12V
VIN=4~12V
VIN=4~12V

300
300
300
300
300
300

0.2

5
5
5
5
5

5
15
15
15
15
15
15

440
440
440
440
440
440

400
400
540
540
540
540

55
55
55
55
55
55

15
15
15
15
15
15
40
40
40
40
40
40

mA

10
500
500
640
640
640
640

80

80

80

80

80

80

Note 1: Guaranteed by design.
Note 2: Regulation is measured at constant junction temperature, using pulse testing with a low ON time.
Note 3: Current limit is measured by pulsing a short time.
Note 4: Dropout voltage is defined as the input to output differential at which the output voltage drops

100mV below the value measured with a 1V differential.

mV

mV

mV

µA

3

=0.1mA

Time (

mS)

Time (

mS)

150

AIC1732

n TYPICAL PERFORMANCE CHARACTERISTICS

Output Voltage vs. Temperature

104

103

100

98

Normalized Output Voltage (V)

96

-40

60

58

A)

µ

56

54

Ground Current (

52

0

50 100

Temperature (°C)

Ground Current vs. Temperature

IL =300mA

IL=150mA

I

L

125

60

50

A)

µ

40

30

20

Ground Current (

10

0

0 2 4 6 8 10 12

Input Voltage (V)

Dropout Voltage vs. Load Current

600

V

=3.3V, 3.5V, 3.7V & 3.8V

Ground Current vs. Input Voltage

500

400

300

200

Dropout Voltage (mV)

100

OUT

V

=5.0V & 5.2V

OUT

50

100

50

0

(mV, AC)

-50

Output Voltage

8

(V)

6

Input Voltage

0

0 25 50

-25-50

Temperature (°C)

Line Transient Response

0.50.1 0.40.2 0.3 1.00.6 0.90.7 0.8

C

=1µF

OUT

IL=1mA
V

=5.2V

OUT

75 100

125

0

0

20

0

(mV, AC)

Output Voltage

-20

-40

-60

(mA)

Load Current

0.1

0

100 150

50

Load Current (mA)

Load transient Response

2.50.5 2.01.0 1.5 5.03.0 4.53.5 4.0

200

250

300

4

Load Transient Response

Time (mS)

(mA

)

(mV, AC

)

I

nput Voltage V

(V)

200

300

400

-

-

AIC1732

n TYPICAL PERFORMANCE CHARACTERISTICS (Continued)

100

0

-100

Out put Volt age

-200

150

0. 1

Load Current

0 0.5 1. 0 1. 5 2.0 2.5 3.0 3.5 4.0 4.5 5.0

COUT= 1µF
V

= 5 .2V

OUT

n BLOCK DIAGRAM

VIN

CURRENT

LIMITING

ERROR

AMP

+

THERMAL

SHUTDOWN

Recommended Max. Output Current v.s. Input Voltage

3.3V

3.7V

3.5V

3.8V

(mA)

OUT

5.2V

5V

100

Output Current, I

0

4 5 6 7 8 9 10 11 12

VOUT

IN

1.235V
Reference

n PIN DESCRIPTION

VOUT PIN - Output pin.
GND PIN - Power GND.
VIN PIN - Power Supply Input.

n APPLICATION INFORMATIONS

A 1µF (or greater) capacitor is required between
the AIC1732 output and ground for stability.
Without this capacitor the part will oscillate. Even
though most types of capacitor may work, the
equivalent series resistance (ESR) should be held
to 5Ω or less if Aluminum electrolytic type is used.
Many Aluminum electrolytics have electrolytes
that freeze at about -30°C, so solid tantalums are
recommended for operation below -25°C. The

GND

value of this capacitor may be increased without
limit.

A 0.1µF capacitor (or greater) should be placed
from the AIC1732 input to ground if the lead
inductance between the input and power source
exceeds 500nH (approximately 10 inches of trace).

5

e1

AIC1732

n PHYSICAL DIMENSIONS

l SOT-89 (unit: mm)

H

L

e

l SOT-89 MARKING

Part No. Marking
AIC1732-33 AR33
AIC1732-34 AR34
AIC1732-35 AR35
AIC1732-36 AR36
AIC1732-37 AR37
AIC1732-38 AR38
AIC1732-50 AR50
AIC1732-52 AR52

D

D1

A

C

SYMBOL MIN MAX

A 1.40 1.60
B 0.36 0.48
C 0.35 0.44
D 4.40 4.60

E

D1 1.62 1.83

E 2.29 2.60

e 1.50 (TYP.)

B

e1 3.00 (TYP.)

H 3.94 4.25

L 0.89 1.20

6