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LP2950AZ-3 View Datasheet(PDF) - Bay Linear

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LP2950AZ-3 Datasheet PDF : 12 Pages
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Bay Linear
Linear Excellence
100mA Low Dropout Voltage Regulator
LP2950/LP2951
Description
The Bay Linear LP2950 and LP2951 are low power voltage
regulators. They are excellent choice for use in Battery
Powered applications such notebooks computers. The LP2950
and LP2951 feature low quiescent current ( 75µA Typ.) and
low dropout of 40mV at light loads 380mV (typ.) at 100mA.
With 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 LP2950 and LP2951 useful
as a low power reference.
The Bay Linear LP2950 is available in fixed voltages of 3.0V,
3.3V, and 5.0V in a TO-92 package.
The Bay Linear LP2951 comes in an 8SOIC package and has
an adjustable output voltage from 1.24V to 29V programmed
with a pair of external resistor. It also features pin-strap
capability providing the fixed voltage of 3.0, 3.3V or 5V for
convenience. The LP2951 has an error flag output feature used
as power-on reset for warning of low output voltage due to
falling battery voltages. Also, the logic compatible shutdown
input enables the regulator to be switched ON and OFF.
Features
Guaranteed 100mA Output
5.0V, 3.3V and 3.0V Versions
Very Low Quiescent Current
Low Dropout Voltage
Extremely Tight Load and Line
Regulation
Very Low Temperature Coefficient
Needs only 1µF for Stability
Error Flag warns of output dropout
Logic-Controlled Electronic Shutdown
Output programmable from 1.24V to 29V
Applications
Battery Powered Systems
Portable instrumentation
Notebooks Computers
Potable Consumer Equipment
Automotive electronics
SMPS Post-Regulator
Pin Connection
TO-92 (Z)
Vout
Vin
Grd
8SOIC (M)
Output
Sense
Shutdown
Ground
1
8
2
7
3
6
4
5
Input
Feedback
-XX V tap
Error
Ordering Information
Package
TO-92
8SOIC
Tolerance
0.5%
1%
LP2950AZ-XX LP2950-BZ-XX
LP2951AM-XX LP2951BM-XX
“XX” Voltage Selection Guide
Vout
5.0V
3.3V
3.0V
Adjustable
XX Code
5
3.3
3
Left Blank
Bay Linear, Inc 2478 Armstrong Street, Livermore, CA 94550 Tel: (925) 989-7144, Fax: (925) 940-9556
www.baylinear.com
 

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