100mA LOW DROPOUT VOLTAGE REGULATORS
FEATURES
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High accuracy output voltage
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Guaranteed 100 mA output
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Very low quiescent current
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Extremely tight load and line regulation
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Very low temperature coefficient
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Current and thermal limiting
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Low dropout voltage
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Need only 1uF for stability
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Error flag warns of output dropout
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Logi-control electronic shutdown
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Output programmable from 1.24 to 29V
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Moisture Sensitivity Level 3
Pin 1 : Output
Pin 2 : Ground
Pin 3 : Input
1
2
3
LM2950/1
TO- 92 PKG
SOP- 8 PKG
Pin : 1. Output
2. Sense
3. Shutdown
4. Ground
5. Error
6. Tap
7. Feedback
8. Input
Applications
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High-efficiency linear regulator, voltage reference
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Battery powered systems
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Portable consumer equipment
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Portable / Parm, Desktop / Notebook computers
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Portable Instrumentation, cordless telephones
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Automotive Electronics, Radio control systems
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SMPS Post-Regulator, Avionics
ORDERING INFORMATION
DEVICE
PKG
LM2950-XX
LM2951D-XX
Adjustable)
TO-92
SOP-8
(XX= 1.5, 1.8, 2.8, 2.85, 3.0, 3.3, 5.0V,
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 (75㎂ Typ.) and very low drop output voltage
(Typ. 400㎷ at light load and 380㎷ at 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
HTC
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1
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HTC [ HTC KOREA TAEJIN TECHNOLOGY CO. ]
