SS6732
300mA Low Dropout Linear Regulator
n
FEATURES
l
l
l
n
DESCRIPTION
Thve SS6732 is a 3-pin low-dropout linear
regulator. The superior characteristics of the
SS6732 include zero base current loss, very
low dropout voltage, and 2% accurate output
voltage.
Typical
ground
current
remains
approximately
55µA,
under
output
l
l
l
l
l
Low dropout voltage of 130mV at 100mA
output current (5.2V output version).
Guaranteed 300mA output current.
Internal 1.3Ω P-MOSFET draws no base
current.
Low ground current: 55uA.
Accuracy of output voltage 2% of 3.3V/ 3.4V/
3.5V/ 3.6V/ 3.7V/ 3.8V/ 5.0V/ 5.2V.
Input voltage range up to 12V.
Needs only 1µF for stability.
Current limiting and thermal Protection.
conditions from zero up to the maximum
load. Dropout voltage at 100mA output current
is exceptionally low: 130mV for the SS6732-
50 and -52, 180mV for the SS6732-33, -34,
SS6732-35, -36, -37 and -38.
Current limiting and thermal protection are built
in to protect the SS6732 against fault
conditions.
The SS6732 comes in the popular 3-pin
SOT-89 package.
n
APPLICATIONS
l
l
l
l
l
Voltage Regulator for CD-ROM Drivers.
Voltage Regulator for LAN Cards.
Voltage Regulator for Microprocessor.
Wireless Communication Systems.
Battery Powered Systems.
n
TYPICAL APPLICATION CIRCUIT
VIN
V
IN
SS6732
VOUT
V
OUT
+
1
µ
F
C
IN
GND
+
10µF
C
OUT
Low Dropout Linear Regulator
Rev.2.01 6/26/2003
www.SiliconStandard.com
1 of 7
SS6732
n
ORDERING INFORMATION
SS6732-XXCXXX
PACKING TYPE
TR: TAPE & REEL
BG: BAG
PACKAGE TYPE
X: SOT-89
OUTPUT VOLTAGE
33: 3.3V
34: 3.4V
35: 3.5V
36: 3.6V
37: 3.7V
38: 3.8V
50: 5.0V
52: 5.2V
Example: SS6732-33CXTR
à
3.3V Version, in SOT-89 Package
in Tape & Reel Packing
PIN CONFIGURATION
SOT-89
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
Rev.2.01 6/26/2003
www.SiliconStandard.com
2 of 7
SS6732
n
ELECTRICAL CHARACTERISTICS
(Continued)
PARAMETER
Dropout Voltage
(Note 4)
TEST CONDITIONS
SS6732-52
SS6732-50
SS6732-38
SS6732-37
SS6732-36
SS6732-35
SS6732-34
SS6732-33
I
OUT
=0.1mA~I
MAX
SS6732-52
SS6732-50
SS6732-38
SS6732-37
SS6732-36
SS6732-35
SS6732-34
SS6732-33
I
OUT
=300mA
I
OUT
=300mA
I
OUT
=300mA
I
OUT
=300mA
I
OUT
=300mA
I
OUT
=300mA
I
OUT
=300mA
I
OUT
=300mA
V
IN
=5.5~12V
V
IN
=5.5~12V
V
IN
=4~12V
V
IN
=4~12V
V
IN
=4~12V
V
IN
=4~12V
V
IN
=4~12V
V
IN
=4~12V
MIN.
TYP.
400
400
540
540
540
540
540
540
55
55
55
55
55
55
55
55
MAX.
500
500
640
640
640
640
640
640
80
80
80
80
80
80
80
80
UNIT
mV
Ground Current
µA
Note 1:
Note 2:
Note 3:
Note 4:
Guaranteed by design.
Regulation is measured at constant junction temperature, using pulse testing with a low ON time.
Current limit is measured by pulsing a short time.
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.
n
TYPICAL PERFORMANCE CHARACTERISTICS
104
60
Normalized Output Voltage (%)
50
Ground Current (
µ
A)
-40
0
0
50
100
125
103
40
100
30
20
98
10
96
0
0
2
4
6
8
10
12
Temperature (
°
C)
Output Voltage vs. Temperature
Fig. 2
Input Voltage (V)
Ground Current vs. Input Voltage
Fig. 1
Rev.2.01 6/26/2003
www.SiliconStandard.com
4 of 7
SS6732
n
TYPICAL PERFORMANCE CHARACTERISTICS
(Continued)
60
600
58
500
V
OUT
=3.3V, 3.5V, 3.7V & 3.8V
Ground Current (µA)
Dropout Voltage (mV)
400
56
I
L
=300mA
I
L
=150mA
300
54
200
I
L
=0.1mA
52
V
OUT
=5.0V & 5.2V
100
50
-50
-25
0
25
50
0
75
100
125
Temperature (
°
C)
Fig. 3 Ground Current vs. Temperature
0
50
100
150
200
250
300
Fig. 4
Load Current (mA)
Dropout Voltage vs. Load Current
100
Output Voltage
(mV, AC)
50
0
Output Voltage
(mV, AC)
20
0
-50
C
OUT
=1
µ
F
I
L
=1mA
V
OUT
=5.2V
-20
-40
Input Voltage
(V)
8
6
Load Current
(mA)
-60
150
0.1
C
OUT
=1µF
V
OUT
=5.2V
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
Time (mS)
Fig. 5 Line Transient Response
400
Time (mS)
Fig. 6 Load transient Response
Current Voltage
(mV, AC)
0
Output Current, I
OUT
(mA)
100
C
OUT
=1
µ
F
V
OUT
=5.2V
3.3V
3.5V
3.7V
3.8V
300
-100
-200
200
5.2V
5V
Load Current
(mA)
150
0.1
100
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
0
4
5
6
7
8
9
10
11
12
Fig. 7
Time (mS)
Load Transient Response
Input Voltage V
IN
(V)
Fig. 8
Recommended Max. Output Current vs. Input
Voltage
Rev.2.01 6/26/2003
www.SiliconStandard.com
5 of 7
京公网安备 11010802033920号
EEWORLD
