LM2931_11 Datasheet, PDF (1/23 Pages) ON Semiconductor – 100 mA, Adjustable Output, LDO Voltage Regulator with 60 V Load Dump Protection

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
• 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, D²PAK and DPAK Packages
• High Accuracy (±2.5%) Reference (LM2931AC) Available
• Pb−Free Packages are Available
• NCV Prefix for Automotive and Other Applications Requiring Site
and Control Changes
Applications
• Battery Powered Consumer Products
• Hand−held Instruments
• Camcorders and Cameras
SOIC−8
D SUFFIX
CASE 751 ⁸
1
FIXED
N.C.
54
GND
Input
81
N.C.
GND
Output
ADJUSTABLE
Output
Inhibit
54
Adjust
GND
GND
Input
81
Output
(Top View)
(Top View)
http://onsemi.com
FIXED OUTPUT VOLTAGE
TO−92
Z SUFFIX
CASE 29 ₁
2
3
TO−220
T SUFFIX
CASE 221AB ₁
2
3
DPAK
DT SUFFIX
CASE 369C
1
3
D²PAK
D2T SUFFIX
CASE 936
SOT−223
ST SUFFIX
CASE 318H
1
3
3
1
Pin 1. Output
2. Ground
3. Input
Pin 1. Input
2. Ground
3. Output
ADJUSTABLE OUTPUT VOLTAGE
TO−220
TH SUFFIX
CASE 314A
1
5
TO−220 ₁
TV SUFFIX
CASE 314B
5
TO−220
T SUFFIX
CASE 314D ¹
Pin 1. Adjust
2. Output
Inhibit
3. Ground
4. Input
5. Output
5
D²PAK
D2T SUFFIX ₁
CASE 936A
5
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.
© Semiconductor Components Industries, LLC, 2011
1
December, 2011 − Rev. 25
Publication Order Number:
LM2931/D