100mA LOW DROPOUT VOLTAGE REGULATORS

LM2950/1

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

Pin 1 : Output

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Logi-control electronic shutdown

Pin 2 : Ground

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Output programmable from 1.24 to 29V

Pin 3 : Input

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Moisture Sensitivity Level 3

Applications

ORDERING INFORMATION

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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

(XX= 1.5, 1.8, 2.8, 2.85, 3.0, 3.3, 5.0V,

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Portable Instrumentation, cordless telephones

Adjustable)

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Automotive Electronics, Radio control systems

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SMPS Post-Regulator, Avionics

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

LM2951D-XX

SOP-8

−

1 −

LM2950-XX

TO-92

PKG

DEVICE

TO- 92 PKG

SOP- 8 PKG

Pin : 1. Output

2. Sense

3. Shutdown

4. Ground

5. Error

6. Tap

7. Feedback

8. Input

1

2

3