UNISONIC TECHNOLOGIES CO., LTD
LM2954
300mA LOW-DROPOUT
VOLTAGE REGULATOR
DESCRIPTION
LINEAR INTEGRATED CIRCUIT
The UTC
LM2954
is a monolithic integrated voltage regulator
with low dropout voltage, and low quiescent current. It includes
many features that suitable for different applications with TO-92,
DIP-8, SOP-8 and SOT-223 packages.
FEATURES
*High Accuracy Fixed Output.
*Output Voltage Programmable and Logic Controlled Shutdown
And Error Flag Available for DIP and SOP Package.
*Extremely Low Quiescent Current And Dropout Voltage.
*Extremely Tight Load And Line Regulation.
*Current and Thermal Limiting.
*Very low Temperature Coefficient.
ORDERING INFORMATION
Ordering Number
Halogen Free
LM2954G-xx-AA3-R
LM2954G-xx-D08-T
LM2954G-xx-S08-T
LM2954G-xx-S08-R
LM2954G-xx-T92-B
LM2954G-xx-T92-K
O: V
OUT
G: GND
Package
SOT-223
DIP-8
SOP-8
SOP-8
TO-92
TO-92
Pin assignment
1
2
3
I
G
O
refer to Pin
Configurations
O
O
G
G
I
I
Packing
Tape Reel
Tube
Tube
Tape Reel
Tape Box
Bulk
Lead Free
LM2954L-xx-AA3-R
LM2954L-xx-D08-T
LM2954L-xx-S08-T
LM2954L-xx-S08-R
LM2954L-xx-T92-B
LM2954L-xx-T92-K
Note: Pin assignment: I: V
IN
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LM2954
MARKING INFORMATION
PACKAGE
VOLTAGE CODE
LINEAR INTEGRATED CIRCUIT
MARKING
SOT-223
33:3.3V
50:5.0V
TO-92
3.3:3.3V
5.0:5.0V
SOP-8/DIP-8
3.3:3.3V
5.0:5.0V
AD: ADJ
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LM2954
PIN CONFIGURATIONS
UTC LM2954
LINEAR INTEGRATED CIRCUIT
1
2
3
OUTPUT
INPUT
GND
TO-92 Plastic Package Bottom View
UTC LM2954
INPUT
GND
OUTPUT
SOT-223 Package
OUTPUT
1
2
UTC LM2954
8
7
6
5
INPUT
SENSE
FEEDBACK
SHUTDOWN
3
4
5V TAP
GND
ERROR
SOP-8 or DIP-8 Package
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LM2954
BLOCK DIAGRAM
LINEAR INTEGRATED CIRCUIT
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LM2954
ABSOLUTE MAXIMUM RATINGS
LINEAR INTEGRATED CIRCUIT
PARAMETER
SYMBOL
VALUE
UNIT
Supply Voltage
V
CC
-0.3 ~ +30
V
Feedback Voltage
V
FB
-1.5 ~ +30
V
Shutdown Voltage
V
SHDN
-0.3 ~ +30
V
Comparator Output Voltage
V
OUT
-0.3 ~ +30
V
Junction Temperature
T
J
+125
°C
Operating Temperature
T
OPR
-40 ~ +85
°C
Storage temperature
T
STG
-40 ~ +150
°C
Note: 1.Absolute maximum ratings are those values beyond which the device which the device could be permanently
damaged. Absolute maximum ratings are stress ratings only and functional device operation is not implied.
2.The device is guaranteed to meet performance specification within 0°C~+70°C operating temperature range
and assured by design from -20°C~+85°C, characteristic and correlation with static process control.
ELECTRICAL CHARACTERISTICS
(T
J
=25°C, V
IN
=6V, I
L
=100μA, C
L
=1μF, unless otherwise specified)
PARAMETER
SYMBOL
V
OUT
TEST CONDITIONS
T
J
=25°C
MIN.
3.23
4.90
20
TYP.
3.3
5.0
0.1
0.2
380
450
0.12
12
560
MAX. UNIT
3.37
V
5.10
100 ppm/°C
0.2
%
0.5
400
mV
600
0.23
mA
14
650
μA
mA
430
μV
160
100
LM2954-3.3
LM2954-5.0
Output Voltage Temperature Coefficient
Line Regulation
Load Regulation
Output Voltage
Dropout Voltage
Ground Current
Dropout Ground Current
Current Limit
Output Noise (10Hz to 100KHz)
T
C
V
O
△
V
OUT
6V
≦
V
IN
≦
30V
△
V
OUT
100μA
≦
I
L
≦
300mA
I
L
=100mA
V
D
I
L
=200mA (note 2)
IL=100μA
IGND
IL=200μA
I
D
V
IN
=4.5V, I
L
=100μA
I
LIMIT
V
OUT
=0
C
L
=1μF
e
N
C
L
=200μF
C
L
=3.3μF
300
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QW-R102-002.K
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