LND2950 Datasheet, PDF (1/5 Pages) Linear Dimensions Semiconductor – 100mA Low Dropout Voltage Regulators

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DATA SHEET
LND2950 / LND2951
100mA Low Dropout Voltage Regulators
GENERAL DESCRIPTION
The LND2950-XX is a low power voltage
regulator.This device is an excellent choice for use in
battery powered application such as cordless
telephone, radio control systems, and portable
computers.
The LND2950-XX/LND2951-XX features very low
quiescent current (75µA Typ.) and very low drop
output voltage (Typ. 40mV at light load and 380mV at
100mA).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 LND2950-XX/LND2951-XX
useful as a low-power voltage reference.
The error flag output feature is used as power-on
reset, warning of a low output voltage, due to falling
battery voltage on input. Another feature is the logic-
compatible shutdown input, which enables the
regulator to be switched on and off.
The LN8D2d9i5p1-XX is available in 8 pin plastic
packages. The regulator output voltage may be pin-
strapped for a –XX voltage or programmed from 1.24
volts to 29 volts with an external pair of resistors.
The LND2950-XX is offered in a 3-pin TO-92
package compatible with other fixed regulators.
DEVICE SELECTION GUIDE
V_OUT, Volts
2.85*
3.0
3.3
5.0
Device
LND2950-2.85,LND2951-2.85
LND2950-3.0,LND2951-3.0
LND2950-3.3, LND2951-3.3
LND2950-5.0, LND2951-5.0
*Other versions are also available
Vout=2.0V TO 5.0V. Please consult for more
information
FEATURES
• High accuracy output voltage
• Guaranteed 100mA output
• 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 1.24 to 29V
APPLICATIONS
• Battery powered systems
• Cordless telephones
• Radio control systems
• Portable/Palm Top/ notebook
computers
• Portable Instrumentation
• Avionics
• Automotive Electronics
• SMPS Post-Regulator
• Voltage Reference
• Linear Dimensions, Inc. • 445 East Ohio Street, Chicago IL 60611 USA • tel [phone] • fax [phone] • www.lineardimensions.com •