LP2950 Datasheet, PDF (2/14 Pages) National Semiconductor (TI) – Series of Adjustable Micropower Voltage Regulators

LP2950/2951
Additional features available with the LP2951 also include an
error flag output that warns of a low output voltage, which is
often due to failing batteries on the input. This may also be
used as a power-on reset. A logic-compatible shutdown input
is also available which enables the regulator to be switched on
and off. This part may also be pin-strapped for a 5V output,
or programmed from 1.24V to 29V with the use of two external
resistors.
The LP2950 is available as either an -02 or -03 version. The
-02 and -03 versions are guaranteed for junction temperatures
Micrel
from –40°C to +125°C; the -02 version has a tighter output and
reference voltage specification range over temperature. The
LP2951 is available as an -02 or -03 version.
The LP2950 and LP2951 have a tight initial tolerance (0.5%
typical), a very low output voltage temperature coefficient
which allows use as a low-power voltage reference, and
extremely good load and line regulation (0.05% typical). This
greatly reduces the error in the overall circuit, and is the result
of careful design techniques and process control.
Ordering Information
Part Number
Voltage
LP2950-02BZ
5.0V
LP2950-03BZ
5.0V
LP2951-02BM
5.0V
LP2951-03BM
5.0V
LP2951-02BN
5.0V
LP2951-03BN
5.0V
LP2951-4.8BM
4.85V
* Junction temperatures
Temperature Range*
Package
Accuracy
–40°C to +125°C 3-Pin TO-92 plastic 0.5%
–40°C to +125°C 3-Pin TO-92 plastic 1.0%
–40°C to +125°C
8-Pin SOIC
0.5%
–40°C to +125°C
8-Pin SOIC
1.0%
–40°C to +125°C
8-Pin Plastic DIP
0.5%
–40°C to +125°C
8-Pin Plastic DIP
1.0%
–40°C to +125°C
8-Pin SOIC
1.0%
Absolute Maximum Ratings
If Military/Aerospace specified devices are required, contact your local
Micrel representative/distributor for availability and specifications.
Power dissipation
Internally Limited
Lead Temperature (Soldering, 5 seconds)
260°C
Storage Temperature Range
–65°C to +150°C
Operating Junction Temperature Range (Note 8)
LP2950, LP2951
Input Supply Voltage
–40°C to +125°C
–0.3V to +30V
Feedback Input Voltage (Notes 9 and 10)
–1.5V to +30V
Shutdown Input Voltage (Note 9)
–0.3V to +30V
Error Comparator Output Voltage (Note 9)
–0.3V to +30V
ESD Rating is to be determined.
3-36
February 1999