CONTEK LP2951P, LP2951F, LP2950-3.3, LP2950-3.0, LP2950 Datasheet
LP2950/2951 LINEARINTEGRATEDCIRCUIT
1
100 mA LOW-DROPOUT VOLTAGE
REGULATOR
DESCRIPTION
The Contek LP2950/2951 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, or 5V fixed output for TO-92 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.
APPLICATIONS
*Battery powered equipment.
*High efficient linear regulator down to 1.24V.
*Cellular phones.
TO-92
SOP-8
DIP-8
1
ORDERING INFORMATION
PART NUMBER TEMPERATURE RANGE PACKAGE ACCURACY
Contek LP2950-3.0 -40 ~ +125 C 3-Pin TO-92 plastic 1.0%
Contek LP2950-3.3 -40 ~ +125 C 3-Pin TO-92 plastic 2.0%
Contek LP2950 -40 ~ +125 C 3-Pin TO-92 plastic 1.0%
Contek LP2951F -40 ~ +125 C 8-Pin SOP-8 plastic 2.0%
Contek LP2951P -40 ~ +125 C 8-Pin DIP-8 plastic 2.0%
CONTEK
Contek Microelectronics Co.,Ltd.
http://www.contek-ic.com E-mail:sales@contek-ic.com
LP2950/2951 LINEARINTEGRATEDCIRCUIT
2
PIN CONFIGURATIONS
1
2
3
4
8
7
6
5
INPUT
FEEDBACK
5V TAPSHUTDOWN
SENSE
OUTPUT
Contek
LP2951
GND
ERROR
213
OUTPUT
GND
INPUT
Contek LP2950
TO-92 Plastic Package
Bottom View
SOP-8 OR DIP-8 PACKAGE
Fig. 1
BLOCK DIAGRAM
5
4
6
2
187
3
60mV
330K
W
TOCMOS
ORTTL
5V150mA
MAX.
FEEDBACK INPUT OUTPUT
SENSE
5V TAP
GND
ERROR
DETECTION
COMPARATOR
ERROR
AMPLIFIER
FROM CMOS
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
Contek
CONTEK
Contek Microelectronics Co.,Ltd.
http://www.contek-ic.com E-mail:sales@contek-ic.com
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