LM2931, NCV2931 Series
100 mA, Adjustable Output,
LDO Voltage Regulator with
60 V Load Dump Protection
The LM2931 series consists of positive fixed and adjustable output
voltage regulators that are specifically designed to maintain proper
regulation with an extremely low input−to−output voltage differential.
These devices are capable of supplying output currents in excess of
100 mA and feature a low bias current of 0.4 mA at 10 mA output.
Designed primarily to survive in the harsh automotive environment,
these devices will protect all external load circuitry from input fault
conditions caused by reverse battery connection, two battery jump
starts, and excessive line transients during load dump. This series also
includes internal current limiting, thermal shutdown, and additionally,
is able to withstand temporary power−up with mirror−image insertion.
Due to the low dropout voltage and bias current specifications, the
LM2931 series is ideally suited for battery powered industrial and
consumer equipment where an extension of useful battery life is
desirable. The ‘C’ suffix adjustable output regulators feature an output
inhibit pin which is extremely useful in microprocessor−based systems.
Features
http://onsemi.com
FIXED OUTPUT VOLTAGE
TO−92
Z SUFFIX
CASE 29
Pin 1. Output
2. Ground
3. Input
1
2
3
TO−220
T SUFFIX
CASE 221AB
1
2
3
DPAK
DT SUFFIX
CASE 369A
D
2
PAK
D2T SUFFIX
CASE 936
SOT−223
ST SUFFIX
CASE 318H
1
3
Pin 1. Input
2. Ground
3. Output
•
•
•
•
•
•
•
•
•
•
•
•
Input−to−Output Voltage Differential of < 0.6 V @ 100 mA
Output Current in Excess of 100 mA
Low Bias Current
60 V Load Dump Protection
−50 V Reverse Transient Protection
Internal Current Limiting with Thermal Shutdown
Temporary Mirror−Image Protection
Ideally Suited for Battery Powered Equipment
Economical 5−Lead TO−220 Package with Two Optional Leadforms
Available in Surface Mount SOP−8, D
2
PAK and DPAK Packages
High Accuracy (
±
2.5%) Reference (LM2931AC) Available
Pb−Free Packages are Available
1
3
3
1
ADJUSTABLE OUTPUT VOLTAGE
TO−220
TH SUFFIX
CASE 314A
1
5
TO−220
1
TV SUFFIX
CASE 314B
5
Applications
•
Battery Powered Consumer Products
•
Hand−held Instruments
•
Camcorders and Cameras
SOIC−8
D SUFFIX
CASE 751
FIXED
N.C.
GND
Input
8
1
5
4
N.C.
GND
Output
Output
Inhibit
GND
Input
8
1
TO−220
T SUFFIX
CASE 314D
1
5
Pin 1. Adjust
2. Output
Inhibit
3. Ground
4. Input
5. Output
D
2
PAK
D2T SUFFIX
1
CASE 936A
1
8
5
ADJUSTABLE
5
4
Adjust
GND
Output
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 12 of this data sheet.
DEVICE MARKING INFORMATION
See general marking and heatsink information in the device
marking section on page 15 of this data sheet.
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©
Semiconductor Components Industries, LLC, 2007
1
March, 2007 − Rev. 20
Publication Order Number:
LM2931/D
ONSEMI [ ON SEMICONDUCTOR ]
