feedback
Rate this webpage
Need
Support?

LM2931: LDO Regulator, 100 mA, Ultra-High PSRR

Datasheet: LDO Voltage Regulator - Adjustable Output, Load Dump Protection 60 V, 100 mA
Rev. 26 (552kB)
Product Overview
»View Reliability Data
»View Material Composition
» Product Change Notification
The LM2931 series consists of positive fixed and adjustable output low dropout (LDO) linear 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%) Reference (LM2931AC) Available
Applications
  • Battery Powered Consumer Products
  • Handheld Instruments
  • Automotive
Technical Documentation & Design Resources
Data Sheets (1) FAQ (2)
Package Drawings (8)  
Availability & Samples
Specifications
Product
Status
Compliance
Description
Package
MSL
Container
Budgetary Price/Unit
Type
Case Outline
Type
Temperature
Type
Qty.
LM2931ACD2TR4G Active
Pb-free
Halide free
LM2931, Vout: Adj; ±2.0% D2PAK-5 936A-02 1 260 Tape and Reel 800 $0.4708
LM2931ACDG Last Shipments
Pb-free
Halide free
LM2931, Vout: Adj; ±2.0% SOIC-8 751-07 1 260 Tube 98  
LM2931ACDR2G Active
Pb-free
Halide free
LM2931, Vout: Adj; ±2.0% SOIC-8 751-07 1 260 Tape and Reel 2500 $0.2335
LM2931ACTVG Active
Pb-free
Halide free
LM2931, Vout: Adj; ±2.0% TO-220-5 314B-05 NA Tube 50 Contact Sales Office
LM2931AD-5.0G Active
Pb-free
Halide free
LM2931, Vout: 5.0 V; ±3.8% SOIC-8 751-07 1 260 Tube 98 $0.2892
LM2931AD-5.0R2G Active
Pb-free
Halide free
LM2931, Vout: 5.0 V; ±3.8% SOIC-8 751-07 1 260 Tape and Reel 2500 $0.2069
LM2931AD2T-5.0G Active
Pb-free
Halide free
LM2931, Vout: 5.0 V; ±3.8% D2PAK-3 936-03 1 260 Tube 50 $0.4705
LM2931AD2T-5R4G Active
Pb-free
Halide free
LM2931, Vout: 5.0 V; ±3.8% D2PAK-3 936-03 1 260 Tape and Reel 800 $0.5091
LM2931ADT-5.0G Active
Pb-free
Halide free
LM2931, Vout: 5.0 V; ±3.8% DPAK-3 369C 1 260 Tube 75 $0.2604
LM2931ADT-5.0RKG Active
Pb-free
Halide free
LM2931, Vout: 5.0 V; ±3.8% DPAK-3 369C 1 260 Tape and Reel 2500 $0.2655
LM2931AT-5.0G Active
Pb-free
Halide free
LM2931, Vout: 5.0 V; ±3.8% TO-220-3 221AB NA Tube 50 $0.4651
LM2931AZ-5.0G Active
Pb-free
Halide free
LM2931, Vout: 5.0 V; ±3.8% TO-92 29-11 NA Bulk Bag 2000 $0.2043
LM2931AZ-5.0RAG Active
Pb-free
Halide free
LM2931, Vout: 5.0 V; ±3.8% TO-92 29-11 NA Tape and Reel 2000 $0.2264
LM2931AZ-5.0RPG Active
Pb-free
Halide free
LM2931, Vout: 5.0 V; ±3.8% TO-92 29-11 NA Fan-Fold 2000 $0.228
LM2931CD2TG Active
Pb-free
Halide free
LM2931, Vout: Adj; ±5.0% D2PAK-5 936A-02 1 260 Tube 50 $0.3333
LM2931CD2TR4G Active
Pb-free
Halide free
LM2931, Vout: Adj; ±5.0% D2PAK-5 936A-02 1 260 Tape and Reel 800 $0.4832
LM2931CDG Last Shipments
Pb-free
Halide free
LM2931, Vout: Adj; ±5.0% SOIC-8 751-07 1 260 Tube 98  
LM2931CDR2G Active
Pb-free
Halide free
LM2931, Vout: Adj; ±5.0% SOIC-8 751-07 1 260 Tape and Reel 2500 $0.2185
LM2931CTG Active
Pb-free
Halide free
LM2931, Vout: Adj; ±5.0% TO-220-5 314D-04 NA Tube 50 $0.4327
LM2931D-5.0G Active
Pb-free
Halide free
LM2931, Vout: 5.0 V; ±5.0% SOIC-8 751-07 1 260 Tube 98 $0.2101
LM2931D-5.0R2G Active
Pb-free
Halide free
LM2931, Vout: 5.0 V; ±5.0% SOIC-8 751-07 1 260 Tape and Reel 2500 $0.1959
LM2931D2T-5.0G Active
Pb-free
Halide free
LM2931, Vout: 5.0 V; ±5.0% D2PAK-3 936-03 1 260 Tube 50 $0.3333
LM2931D2T-5.0R4G Active
Pb-free
Halide free
LM2931, Vout: 5.0 V; ±5.0% D2PAK-3 936-03 1 260 Tape and Reel 800 $0.4343
LM2931DT-5.0G Active
Pb-free
Halide free
LM2931, Vout: 5.0 V; ±5.0% DPAK-3 369C 1 260 Tube 75 $0.2217
LM2931T-5.0G Active
Pb-free
Halide free
LM2931, Vout: 5.0 V; ±5.0% TO-220-3 221AB NA Tube 50 $0.3837
LM2931Z-5.0G Active
Pb-free
Halide free
LM2931, Vout: 5.0 V; ±5.0% TO-92 29-11 NA Bulk Bag 2000 $0.2363
LM2931Z-5.0RAG Active
Pb-free
Halide free
LM2931, Vout: 5.0 V; ±5.0% TO-92 29-11 NA Tape and Reel 2000 $0.2467
LM2931Z-5.0RPG Active
Pb-free
Halide free
LM2931, Vout: 5.0 V; ±5.0% TO-92 29-11 NA Fan-Fold 2000 $0.2467
Market Leadtime (weeks) : 4 to 8
Avnet   (2020-08-19 00:00) : >1K
PandS   (2020-09-14 00:00) : <1K
Market Leadtime (weeks) : Contact Factory
Market Leadtime (weeks) : 8 to 12
FutureElectronics   (2020-08-19 00:00) : >1K
PandS   (2020-09-14 00:00) : >1K
Market Leadtime (weeks) : 2 to 4
PandS   (2020-09-14 00:00) : <100
ON Semiconductor   (2020-09-02 00:00) : 4,400
Market Leadtime (weeks) : 4 to 8
FutureElectronics   (2020-08-19 00:00) : >1K
Avnet   (2020-08-19 00:00) : >1K
Market Leadtime (weeks) : 4 to 8
Avnet   (2020-08-19 00:00) : >10K
FutureElectronics   (2020-08-19 00:00) : >50K
PandS   (2020-09-14 00:00) : >10K
Market Leadtime (weeks) : 4 to 8
ON Semiconductor   (2020-09-02 00:00) : 11,850
PandS   (2020-09-14 00:00) : <100
Market Leadtime (weeks) : Contact Factory
PandS   (2020-09-14 00:00) : >1K
FutureElectronics   (2020-08-19 00:00) : <1K
Market Leadtime (weeks) : 2 to 4
ON Semiconductor   (2020-09-02 00:00) : 5,700
Market Leadtime (weeks) : 17 to 20
FutureElectronics   (2020-08-19 00:00) : >10K
Market Leadtime (weeks) : 4 to 8
PandS   (2020-09-14 00:00) : >1K
Avnet   (2020-08-19 00:00) : <1K
FutureElectronics   (2020-08-19 00:00) : >1K
Market Leadtime (weeks) : Contact Factory
FutureElectronics   (2020-08-19 00:00) : >1K
Market Leadtime (weeks) : Contact Factory
PandS   (2020-09-14 00:00) : >1K
Market Leadtime (weeks) : Contact Factory
Market Leadtime (weeks) : 4 to 8
ON Semiconductor   (2020-09-02 00:00) : 900
Avnet   (2020-08-19 00:00) : <1K
Market Leadtime (weeks) : 2 to 4
Avnet   (2020-08-19 00:00) : <1K
ON Semiconductor   (2020-09-02 00:00) : 800
Market Leadtime (weeks) : Contact Factory
FutureElectronics   (2020-08-19 00:00) : <100
PandS   (2020-09-14 00:00) : <100
Market Leadtime (weeks) : 8 to 12
PandS   (2020-09-14 00:00) : >50K
FutureElectronics   (2020-08-19 00:00) : >10K
Market Leadtime (weeks) : 4 to 8
PandS   (2020-09-14 00:00) : >1K
FutureElectronics   (2020-08-19 00:00) : <1K
Market Leadtime (weeks) : 4 to 8
Avnet   (2020-08-19 00:00) : <1K
FutureElectronics   (2020-08-19 00:00) : >10K
Market Leadtime (weeks) : 4 to 8
Avnet   (2020-08-19 00:00) : >10K
FutureElectronics   (2020-08-19 00:00) : >10K
ON Semiconductor   (2020-09-02 00:00) : 225,000
PandS   (2020-09-14 00:00) : >10K
Market Leadtime (weeks) : 4 to 8
ON Semiconductor   (2020-09-02 00:00) : 2,350
Market Leadtime (weeks) : 2 to 4
ON Semiconductor   (2020-09-02 00:00) : 10,400
PandS   (2020-09-14 00:00) : <1K
FutureElectronics   (2020-08-19 00:00) : >1K
Avnet   (2020-08-19 00:00) : <1K
Market Leadtime (weeks) : 4 to 8
FutureElectronics   (2020-08-19 00:00) : >10K
Avnet   (2020-08-19 00:00) : <1K
ON Semiconductor   (2020-09-02 00:00) : 4,275
Market Leadtime (weeks) : 4 to 8
FutureElectronics   (2020-08-19 00:00) : <1K
Market Leadtime (weeks) : Contact Factory
PandS   (2020-09-14 00:00) : <100
ON Semiconductor   (2020-09-02 00:00) : 2,000
Avnet   (2020-08-19 00:00) : <1K
Market Leadtime (weeks) : Contact Factory
Market Leadtime (weeks) : Contact Factory
FutureElectronics   (2020-08-19 00:00) : >1K

Product
Description
Pricing ($/Unit)
Compliance
Status
Output
Polarity
VO (V)
IO Typ (A)
VI Min (V)
VI Max (V)
VDO Typ (V)
Iq Typ (mA)
PSRR (dB)
Noise (µVrms)
Enable
PowerGood
Application
Package Type
LM2931ACD2TR4G  
 LM2931, Vout: Adj; ±2.0% 
 $0.4708 
Pb
H
 Active   
Single
Positive
Adj
0.1
2.5
40
0.16
0.4
90
700
Yes
No
Industrial
D2PAK-5
LM2931ACDR2G  
 LM2931, Vout: Adj; ±2.0% 
 $0.2335 
Pb
H
 Active   
Single
Positive
Adj
0.1
2.5
40
0.16
0.4
90
700
Yes
No
Industrial
SOIC-8
LM2931ACTVG  
 LM2931, Vout: Adj; ±2.0% 
Pb
H
 Active   
Single
Positive
Adj
0.1
2.5
40
0.16
0.4
90
700
Yes
No
Industrial
TO-220-5
LM2931AD-5.0G  
 LM2931, Vout: 5.0 V; ±3.8% 
 $0.2892 
Pb
H
 Active   
Single
Positive
5
0.1
2.5
40
0.16
0.4
90
700
No
No
Industrial
SOIC-8
LM2931AD-5.0R2G  
 LM2931, Vout: 5.0 V; ±3.8% 
 $0.2069 
Pb
H
 Active   
Single
Positive
5
0.1
2.5
40
0.16
0.4
90
700
No
No
Industrial
SOIC-8
LM2931AD2T-5.0G  
 LM2931, Vout: 5.0 V; ±3.8% 
 $0.4705 
Pb
H
 Active   
Single
Positive
5
0.1
2.5
40
0.16
0.4
90
700
No
No
Industrial
D2PAK-3
LM2931AD2T-5R4G  
 LM2931, Vout: 5.0 V; ±3.8% 
 $0.5091 
Pb
H
 Active   
Single
Positive
5
0.1
2.5
40
0.16
0.4
90
700
No
No
Industrial
D2PAK-3
LM2931ADT-5.0G  
 LM2931, Vout: 5.0 V; ±3.8% 
 $0.2604 
Pb
H
 Active   
Single
Positive
5
0.1
2.5
40
0.16
0.4
90
700
No
No
Industrial
DPAK-3
LM2931ADT-5.0RKG  
 LM2931, Vout: 5.0 V; ±3.8% 
 $0.2655 
Pb
H
 Active   
Single
Positive
5
0.1
2.5
40
0.16
0.4
90
700
No
No
Industrial
DPAK-3
LM2931AT-5.0G  
 LM2931, Vout: 5.0 V; ±3.8% 
 $0.4651 
Pb
H
 Active   
Single
Positive
5
0.1
2.5
40
0.16
0.4
90
700
No
No
Industrial
TO-220-3
LM2931AZ-5.0G  
 LM2931, Vout: 5.0 V; ±3.8% 
 $0.2043 
Pb
H
 Active   
Single
Positive
5
0.1
2.5
40
0.16
0.4
90
700
No
No
Industrial
TO-92
LM2931AZ-5.0RAG  
 LM2931, Vout: 5.0 V; ±3.8% 
 $0.2264 
Pb
H
 Active   
Single
Positive
5
0.1
2.5
40
0.16
0.4
90
700
No
No
Industrial
TO-92
LM2931AZ-5.0RPG  
 LM2931, Vout: 5.0 V; ±3.8% 
 $0.228 
Pb
H
 Active   
Single
Positive
5
0.1
2.5
40
0.16
0.4
90
700
No
No
Industrial
TO-92
LM2931CD2TG  
 LM2931, Vout: Adj; ±5.0% 
 $0.3333 
Pb
H
 Active   
Single
Positive
Adj
0.1
2.5
40
0.16
0.4
90
700
Yes
No
Industrial
D2PAK-5
LM2931CD2TR4G  
 LM2931, Vout: Adj; ±5.0% 
 $0.4832 
Pb
H
 Active   
Single
Positive
Adj
0.1
2.5
40
0.16
0.4
90
700
Yes
No
Industrial
D2PAK-5
LM2931CDR2G  
 LM2931, Vout: Adj; ±5.0% 
 $0.2185 
Pb
H
 Active   
Single
Positive
Adj
0.1
2.5
40
0.16
0.4
90
700
Yes
No
Industrial
SOIC-8
LM2931CTG  
 LM2931, Vout: Adj; ±5.0% 
 $0.4327 
Pb
H
 Active   
Single
Positive
Adj
0.1
2.5
40
0.16
0.4
90
700
Yes
No
Industrial
TO-220-5
LM2931D-5.0G  
 LM2931, Vout: 5.0 V; ±5.0% 
 $0.2101 
Pb
H
 Active   
Single
Positive
5
0.1
2.5
40
0.16
0.4
90
700
No
No
Industrial
SOIC-8
LM2931D-5.0R2G  
 LM2931, Vout: 5.0 V; ±5.0% 
 $0.1959 
Pb
H
 Active   
Single
Positive
5
0.1
2.5
40
0.16
0.4
90
700
No
No
Industrial
SOIC-8
LM2931D2T-5.0G  
 LM2931, Vout: 5.0 V; ±5.0% 
 $0.3333 
Pb
H
 Active   
Single
Positive
5
0.1
2.5
40
0.16
0.4
90
700
No
No
Industrial
D2PAK-3
LM2931D2T-5.0R4G  
 LM2931, Vout: 5.0 V; ±5.0% 
 $0.4343 
Pb
H
 Active   
Single
Positive
5
0.1
2.5
40
0.16
0.4
90
700
No
No
Industrial
D2PAK-3
LM2931DT-5.0G  
 LM2931, Vout: 5.0 V; ±5.0% 
 $0.2217 
Pb
H
 Active   
Single
Positive
5
0.1
2.5
40
0.16
0.4
90
700
No
No
Industrial
DPAK-3
LM2931T-5.0G  
 LM2931, Vout: 5.0 V; ±5.0% 
 $0.3837 
Pb
H
 Active   
Single
Positive
5
0.1
2.5
40
0.16
0.4
90
700
No
No
Industrial
TO-220-3
LM2931Z-5.0G  
 LM2931, Vout: 5.0 V; ±5.0% 
 $0.2363 
Pb
H
 Active   
Single
Positive
5
0.1
2.5
40
0.16
0.4
90
700
No
No
Industrial
TO-92
LM2931Z-5.0RAG  
 LM2931, Vout: 5.0 V; ±5.0% 
 $0.2467 
Pb
H
 Active   
Single
Positive
5
0.1
2.5
40
0.16
0.4
90
700
No
No
Industrial
TO-92
LM2931Z-5.0RPG  
 LM2931, Vout: 5.0 V; ±5.0% 
 $0.2467 
Pb
H
 Active   
Single
Positive
5
0.1
2.5
40
0.16
0.4
90
700
No
No
Industrial
TO-92
Case Outlines
221AB    751-07    29-11    314D-04    314B-05    936A-02    369C    936-03   
Previously Viewed Products
Clear List

New Products

NCV8187  :  1.2 A LDO Regulator

  • Low Iq of 30 µA typical over full temperature range
  • High PSRR of 85 dB at 1 kHz for power stability
  • Low noise of 9 µV(RMS)

NCV8730  :  150 mA LDO Regulator

  • Low quiescent current of 1 µA typical, and shutdown current of 100 nA typical
  • Wide operating input voltage range of 2.7 to 38 V
  • Low dropout of 290 mV typical @ 150 mA, 3.3 V

Your request has been submitted for approval.
Please allow 2-5 business days for a response.
You will receive an email when your request is approved.
Request for this document already exists and is waiting for approval.