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PJ2950

Description
150mA Low Dropout Voltage Regulators
File Size106KB,7 Pages
ManufacturerETC
Download Datasheet View All

PJ2950 Overview

150mA Low Dropout Voltage Regulators

PJ2950/PJ2951
150mA Low Dropout Voltage Regulators
T
he Semiconductor PJ2950 and PJ2951 are a low power
voltage regulators. These devices are excellent choi ce
in battery-powered applications such as cordless
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 PJ2950 is offered in 3-pin TO-92 package compatible
with other 5 volt regulators. The PJ2951 is available in 8-pin
plastic, SOP-8 package.
The regulator output voltage may be pin-strapped fo r a
5 & 3.3 volt of programmed from 1.24 volt to 29 volts with
external pai r of resistors. Using of as design, processing and
testing techniques make our PJ2950 and PJ2951 superior
over similar products.
fo r use
telephone, radio control systems, and portable computers.
The PJ2950 and PJ2951 features very low quiescent
current (75μA Typ.) and very low drop output voltage
(Typ. 40μ V at light load and 380 mV at 100 mA).This
includes a tight initial tolerance o f 0.5% typ., extremely
good load and line regulation 0.05% typ. and very low
output temperature coeffi cient, making the PJ2950/PJ2951
useful as a low-power voltage reference. Other key
additional feature of this unregulated input voltage transient
of -20V below ground (reverse battery).
____________________________________________________________________________________________________
FEATURES
Output accuracy 5V & 3.3V, 150 mA output
Very low quiescent current
Low dropout voltage
Extremely tight load and line regulation
Very low temperature coefficient
Need only 1μF for stability
Unregulated DC input can withstand -20V reverse
battery and +60V positive transients
Direct replacem ent for PJ2950/PJ2951 sockets
SOP-8
TO-92
PJ2950/2950A
Pin 1. Output
2. Ground
3. Input
PJ2951/2951A
Pin
1. Output
2. Sense
3. Shutdown
4. Ground
5. Error
6. 5 Vtap
7. Feedback
8. Input
PJ2951 VERSIONS ONLY
Error Flag warns of output dropout
Logic-Controlled electronic shutdown
Output programmable from 1.24 to 29V
ORDERING INFORMATION
Device
P J2950ACT
APPLICATIONS
Operating Temperature
Packag e
TO-92
Battery powered systems
Portable instrumentation
Avionics
Automotive Electronics
SMPS Post-Regulator
Voltage Reference
Portable/Palm top / Notebook computers
Portable consumer equipment
Radio control systems
Cordless telephones
PJ2950CT
PJ2950ACT-3.0
PJ2950CT-3.0
PJ2950ACT-3.3
PJ2950CT-3.3
PJ2951ACS
PJ2951CS
PJ2951ACS-3.3
PJ2951CS-3.3
-20 ~ +85
SOP-8
1-7
2002/01.rev.A
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