LP2951-4.8BM Micrel Semiconductor, LP2951-4.8BM Datasheet - Page 2

• Manufacturer Part Number: LP2951-4.8BM
• Description: 100mA Low-Dropout Voltage Regulator
• Manufacturer: Micrel Semiconductor

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
Ordering Information
Part Number
LP2950-02BZ
LP2950-03BZ
LP2951-02BM
LP2951-03BM
LP2951-02BN
LP2951-03BN
LP2951-4.8BM
* Junction temperatures
Absolute Maximum Ratings
If Military/Aerospace specified devices are required, contact your local
Micrel representative/distributor for availability and specifications.
Power dissipation
Lead Temperature (Soldering, 5 seconds)
Storage Temperature Range
Operating Junction Temperature Range (Note 8)
Input Supply Voltage
Feedback Input Voltage (Notes 9 and 10)
Shutdown Input Voltage (Note 9)
Error Comparator Output Voltage (Note 9)
ESD Rating is to be determined.
LP2950, LP2951
Voltage
4.85V
5.0V
5.0V
5.0V
5.0V
5.0V
5.0V
Temperature Range*
–40 C to +125 C
–40 C to +125 C
–40 C to +125 C
–40 C to +125 C
–40 C to +125 C
–40 C to +125 C
–40 C to +125 C
3-36
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.
3-Pin TO-92 plastic
3-Pin TO-92 plastic
8-Pin Plastic DIP
8-Pin Plastic DIP
8-Pin SOIC
8-Pin SOIC
8-Pin SOIC
Package
Internally Limited
–65 C to +150 C
–40 C to +125 C
–0.3V to +30V
–1.5V to +30V
–0.3V to +30V
–0.3V to +30V
Accuracy
260 C
0.5%
1.0%
0.5%
1.0%
0.5%
1.0%
1.0%
February 1999
Micrel