CONTEK LM2954P, LM2954F, LM2954-3.7, LM2954-3.3, LM2954-3.0 Datasheet
LM2954 LINEAR INTEGRATED CIRCUIT
1
300 mA LOW-DROPOUT VOLTAGE
REGULATOR
DESCRIPTION
The Contek LM2954 is a monolithic integrated voltage
regulator with low dropout voltage, and low quiescent current.
It includes many features that suitable for different
applications.
Available in 3-pin TO- 92 ,DIP-8 and SOP-8 packages.
FEATURES
*High accuracy 3.0, 3.3, 3.7 or 5V fixed output for
TO-92, DIP-8 and SOP-8 package.
*Extremely low quiescent current and dropout voltage.
*Extremely tight load and line regulation.
*Current and thermal limiting.
*Very low temperature coefficient.
*Logic controlled shutdown and error flag available for DIP
and SOP package.
*Output voltage programmable for DIP and SOP package.
TO-92
SOP-8
DIP-8
1
APPLICATIONS
*Battery powered equipment.
*High efficient linear regulator down to 1.24V.
*Cellular phones.
ORDERING INFORMATION
PART NUMBER TEMPERATURE RANGE PACKAGE ACCURACY
Contek LM2954-3.0 -40 C ~ +125 C 3-Pin TO-92 plastic 1.0%
Contek LM2954-3.3 -40 C ~ +125 C 3-Pin TO-92 plastic 1.0%
Contek LM2954 -40 C ~ +125 C 3-Pin TO-92 plastic 1.0%
Contek LM2954F -40 C ~ +125 C 8-Pin SOP-8 plastic 1.0%
Contek LM2954P -40 C ~ +125 C 8-Pin DIP-8 plastic 1.0%
PIN CONFIGURATIONS
1
2
3
4
8
7
6
5
INPUT
FEEDBACK
5V TAPSHUTDOWN
SENSE
OUTPUT
Contek
LM2954
GND
ERROR
213
OUTPUT
GND
INPUT
Contek LM2954
TO-92 Plastic Package
Bottom View
SOP-8 OR DIP-8 PACKAGE
Fig. 1
CONTEK
Contek Microelectronics Co.,Ltd.
http://www.contek-ic.com E-mail:sales@contek-ic.com
LM2954 LINEAR INTEGRATED CIRCUIT
2
BLOCK DIAGRAM
5
4
6
2
187
3
60mV
330KW
TOCMOS
OR TTL
5V150mA
MAX.
FEEDBACK
INPUT OUTPUT
SENSE
5VTAP
GND
ERROR
DETECTION
COMPARATOR
ERROR
AMPLIFIER
FROMCMOS
ORTTL
1.23
REF
SHUT
DOWN
UNRAGULATED
DC
ERROR
182kW
60k
W
1.5mF
ABSOLUTE MAXIMUM RATINGS
PARAMETER SYMBOL VALUE UNIT
Supply Voltage Vcc -0.3 ~ +30 V
Feedback Voltage Vfeedback -1.5 ~ +30 V
Shutdown Voltage Vshutdown -0.3 ~ +30 V
Comparator Output Voltage Vco -0.3 ~ +30 V
Storage temperature Tstr -65 ~ +150 C
Operating Junction
Temperature
Tj -40 ~ +125 C
ELECTRICAL CHARACTERISTICS
( Tested at Tj=25 C,VIN=6V,IL=100mA and C L=1F.unless otherwise specified)
PARAMETER PART NUMBER TEST CONDITIONS MIN. TYP. MAX. UNIT
Output Voltage Contek LM2954-3.0
Contek LM2954-3.3
Contek LM2954-3.7
Contek LM2954
Contek LM2954
T
J=25 C
(note 1)
2.97
3.27
3.66
4.95
3.0
3.3
3.7
5.0
3.03
3.33
3.74
5.05
V
Contek LM2954-3.0
Contek LM2954-3.3
Contek LM2954-3.7
Contek LM2954
Contek LM2954
-25 C<=T
J<=+85 C
(note 1)
2.94
3.23
3.63
4.9
3.0
3.3
3.7
5.0
3.06
3.36
3.77
5.1
V
Contek LM2954-3.0
Contek LM2954-3.3
Contek LM2954-3.7
Contek LM2954
Contek LM2954
100mA<=I
L<=300 mA
Tj<=Tj(max)
(note 1)
2.94
3.23
3.66
4.9
3.0
3.3
3.7
5.0
3.06
3.36
3.74
5.1
V
Output Voltage
Temperature Coefficient
20 100 ppm/ C
Line Regulation 6V<=VIN<=30V 0.1 0.2 %
Contek
CONTEK
Contek Microelectronics Co.,Ltd.
http://www.contek-ic.com E-mail:sales@contek-ic.com
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