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LM2950 Datasheet Preview

LM2950 Datasheet

100mA LOW DROPOUT VOLTAGE REGULATORS

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100mA LOW DROPOUT VOLTAGE REGULATORS
LM2950/1
FEATURES
High accuracy output voltage
Guaranteed 100 mA output
Very low quiescent current
Extremely tight load and line regulation
Very low temperature coefficient
Current and thermal limiting
Low dropout voltage
Need only 1uF for stability
Error flag warns of output dropout
Logi-control electronic shutdown
Output programmable from 1.24 to 29V
Moisture Sensitivity Level 3
Applications
High-efficiency linear regulator, voltage reference
Battery powered systems
Portable consumer equipment
Portable / Parm, Desktop / Notebook computers
Portable Instrumentation, cordless telephones
Automotive Electronics, Radio control systems
SMPS Post-Regulator, Avionics
TO- 92 PKG SOP- 8 PKG
1
2
3
Pin 1 : Output
Pin 2 : Ground
Pin 3 : Input
Pin : 1. Output
2. Sense
3. Shutdown
4. Ground
5. Error
6. Tap
7. Feedback
8. Input
ORDERING INFORMATION
DEVICE
PKG
LM2950-XX
TO-92
LM2951D-XX
SOP-8
(XX= 1.5, 1.8, 2.8, 2.85, 3.0, 3.3, 5.0V,
Adjustable)
DESCRIPTION
The LM2950/1 is a low power voltage regulator. This device excellent choice for use in battery powered
application such as cordless telephone, radio control systems, and portable computers.
The LM2950/1 features very low quiescent current (75Typ.) and very low drop output voltage
(Typ. 400at light load and 380at 100).
This includes a tight initial tolerance of 0.5% Typ., extremely good load and line regulation of 0.05% Typ.,
and very low output temperature coefficient, making the LM2950/1 useful as a low-power voltage reference.
The error flag output feature is used as power-on reset for warn of a low output voltage, due to
following batteries on input. Other feature is the logic-compatible shutdown input which enable the
regulator to be switched on and off. The LM2950/1 is available in 8-pin plastic packages.
The regulator output voltage may be pin-strapped for a -XX volt or programmed from 1.24 volt to 29 volts
with external pair of resistors. The LM2950/1 is offered in 3-pin to-92 package compatible with other
fixed regulator.
Feb 2009 - Rev. 1.2
1
HTC




HTC

LM2950 Datasheet Preview

LM2950 Datasheet

100mA LOW DROPOUT VOLTAGE REGULATORS

No Preview Available !

100mA LOW DROPOUT VOLTAGE REGULATORS
BLOCK DIAGRAM AND TYPICAL APPLICATIONS (LM2950)
UNREGULATED DC
+
INPUT
+
- ERROR
- AMPLIFIER
+
1.23V
REFERENCE
60KΩ
OUTPUT
VOUT
100㎃
MAX
+
1㎌
GROUND
LM2950/1
BLOCK DIAGRAM AND TYPICAL APPLICATIONS (LM2951)
ABSOLUTE MAXIMUM RATINGS
POWER DISSIPATION
Lead Temperature (Soldering, 5 seconds)
Storage Temperature Range
Operating Junction Temperature Range
Input Supply Voltage
Feedback Input Voltage
Shutdown Input Voltage
Error Comparator Output
Feb 2009 - Rev. 1.2
2
INTERNALLY LIMITED
260
-65to +150
-55to +150
-0.3 to +30V
-1.5 to +30V
-0.3 to +30V
-0.3 to +30V
HTC


Part Number LM2950
Description 100mA LOW DROPOUT VOLTAGE REGULATORS
Maker HTC
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LM2950 Datasheet PDF






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