LM2931

Active

Very low drop voltage regulators with inhibit function

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Sample & Buy
Solutions
Documentation
CAD Resources
Tools & Software
Quality & Reliability
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Sales Briefcase

Product overview

Description

The LM2931 are very low drop regulators. The very low drop voltage and the low quiescent current make them particular suitable for low noise, low power applications and in battery-powered systems. In the 8-pin configuration (SO-8), fully compatible with the older L78L family, a shutdown logic control function is available. This means that when the device is used as a local regulator it is possible to put a part of the board in standby, decreasing total power consumption. Ideal for automotive applications, LM2931 is protected from reverse battery installations or 2 battery jumps. During the transient, such as a 60 V load dump, when the input voltage can exceed the specified maximum operating input voltage of 26 V, the regulator automatically shuts down to protect both internal circuitry and the load.
  • All features

    • AEC-Q100 qualified (DPAK only)
    • Very low dropout voltage (90 mV typ. at 10 mA load)
    • Low quiescent current (typ. 2.5 mA, at 100 mA load)
    • Output current up to 100 mA
    • Adjustable (from VOUT = 2.5 V only SO-8) and fixed (3.3 V and 5 V) output voltage version
    • Internal current and thermal limit
    • Load dump protection up to 60 V
    • Reverse transient protection up to - 50 V
    • Temperature range: - 40 to 125 °C
    • Package available: TO-92, DPAK, SO-8 (with inhibit control)

EDA Symbols, Footprints and 3D Models

STMicroelectronics - LM2931

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Footprints

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3D models

Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
LM2931AD33R
Active
SO-8 Industrial Ecopack2
LM2931AD50R
Active
SO-8 Industrial Ecopack2
LM2931ADT50R
Active
DPAK Industrial Ecopack2
LM2931AZ50R
Active
TO-92 Industrial Ecopack2

LM2931AD33R

Package:

SO-8

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SO-8

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LM2931AD50R

Package:

SO-8

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SO-8

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LM2931ADT50R

Package:

DPAK

Material Declaration**:

PDF XML

Marketing Status

Active

Package

DPAK

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LM2931AZ50R

Package:

TO-92

Material Declaration**:

PDF XML

Marketing Status

Active

Package

TO-92

Grade

Industrial

RoHS Compliance Grade

Ecopack2

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.

Sample & Buy

Part Number
Order from Distributors
Order from ST
Marketing Status
ECCN (US)
ECCN (EU)
Packing Type
Package
Temperature (°C) Output Voltage (V) (nom)
Budgetary Price (US$)*/Qty
More info
min
max
LM2931AD50R Available at 4 distributors

Distributor availability ofLM2931AD50R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 599 1 Buy from Distributor
RS COMPONENTS EUROPE 1070 1 Buy from Distributor
AVNET AMERICA 2500 0 Buy from Distributor
ANGLIA Live EUROPE 6453 1 Buy from Distributor

Distributor reported inventory date: 2021-10-26

Distributor Name

DIGIKEY

Stock

599

Min.Order

1

Region

WORLDWIDE Buy from Distributor

RS COMPONENTS

Stock

1070

Min.Order

1

AVNET

Stock

2500

Min.Order

0

Region

AMERICA Buy from Distributor

ANGLIA Live

Stock

6453

Min.Order

1

Distributor reported inventory date: 2021-10-26

Active
EAR99 NEC Tape And Reel SO-8 -40 125 5 0.276 / 1k
MORE INFO

Output Tolerance (typ):

5

Output Current (A) (nom):

0.1

Unit Price (US$):

0.276

Country of Origin:

CHINA

LM2931ADT50R Available at 3 distributors

Distributor availability ofLM2931ADT50R

Distributor Name
Region Stock Min. Order Third party link
AVNET AMERICA 2500 0 Buy from Distributor
MOUSER WORLDWIDE 182 1 Buy from Distributor
Farnell Element14 EUROPE 775 1 Buy from Distributor

Distributor reported inventory date: 2021-10-26

Distributor Name

AVNET

Stock

2500

Min.Order

0

Region

AMERICA Buy from Distributor

MOUSER

Stock

182

Min.Order

1

Region

WORLDWIDE Buy from Distributor

Farnell Element14

Stock

775

Min.Order

1

Distributor reported inventory date: 2021-10-26

Buy Direct
Active
EAR99 NEC Tape And Reel DPAK -40 125 5 0.368 / 1k
MORE INFO

Output Tolerance (typ):

5

Output Current (A) (nom):

0.1

Unit Price (US$):

0.368

Country of Origin:

CHINA

LM2931AZ50R Available at 3 distributors

Distributor availability ofLM2931AZ50R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 3462 1 Buy from Distributor
RS COMPONENTS EUROPE 30 10 Buy from Distributor
MOUSER WORLDWIDE 1077 1 Buy from Distributor

Distributor reported inventory date: 2021-10-26

Distributor Name

DIGIKEY

Stock

3462

Min.Order

1

Region

WORLDWIDE Buy from Distributor

RS COMPONENTS

Stock

30

Min.Order

10

MOUSER

Stock

1077

Min.Order

1

Region

WORLDWIDE Buy from Distributor

Distributor reported inventory date: 2021-10-26

Buy Direct
Active
EAR99 NEC Tape And Reel TO-92 -40 125 5 0.276 / 1k
MORE INFO

Output Tolerance (typ):

5

Output Current (A) (nom):

0.1

Unit Price (US$):

0.276

Country of Origin:

CHINA

LM2931AD33R Available at 5 distributors

Distributor availability ofLM2931AD33R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 8993 1 Buy from Distributor
AVNET AMERICA 10000 0 Buy from Distributor
FUTURE WORLDWIDE 5000 2500 Buy from Distributor
MOUSER WORLDWIDE 3379 1 Buy from Distributor
Farnell Element14 EUROPE 1396 1 Buy from Distributor

Distributor reported inventory date: 2021-10-26

Distributor Name

DIGIKEY

Stock

8993

Min.Order

1

Region

WORLDWIDE Buy from Distributor

AVNET

Stock

10000

Min.Order

0

Region

AMERICA Buy from Distributor

FUTURE

Stock

5000

Min.Order

2500

Region

WORLDWIDE Buy from Distributor

MOUSER

Stock

3379

Min.Order

1

Region

WORLDWIDE Buy from Distributor

Farnell Element14

Stock

1396

Min.Order

1

Distributor reported inventory date: 2021-10-26

Buy Direct
Active
EAR99 NEC Tape And Reel SO-8 -40 125 3.3 0.276 / 1k
MORE INFO

Output Tolerance (typ):

5

Output Current (A) (nom):

0.1

Unit Price (US$):

0.276

Country of Origin:

CHINA

LM2931AD50R

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.276 / 1k

Distributor availability ofLM2931AD50R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 599 1 Buy from Distributor
RS COMPONENTS EUROPE 1070 1 Buy from Distributor
AVNET AMERICA 2500 0 Buy from Distributor
ANGLIA Live EUROPE 6453 1 Buy from Distributor

Distributor reported inventory date: 2021-10-26

Distributor Name

DIGIKEY

Stock

599

Min.Order

1

Region

WORLDWIDE Buy from Distributor

RS COMPONENTS

Stock

1070

Min.Order

1

AVNET

Stock

2500

Min.Order

0

Region

AMERICA Buy from Distributor

ANGLIA Live

Stock

6453

Min.Order

1

Distributor reported inventory date: 2021-10-26

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

SO-8

Operating Temperature (°C)

(min)

-40

(max)

125

Output Voltage (V) (nom)

5

Output Tolerance (typ)

5

Output Current (A) (nom)

0.1

Budgetary Price (US$)* / Qty

0.276 / 1k

Country of Origin

CHINA

LM2931ADT50R

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.368 / 1k

Distributor availability ofLM2931ADT50R

Distributor Name
Region Stock Min. Order Third party link
AVNET AMERICA 2500 0 Buy from Distributor
MOUSER WORLDWIDE 182 1 Buy from Distributor
Farnell Element14 EUROPE 775 1 Buy from Distributor

Distributor reported inventory date: 2021-10-26

Distributor Name

AVNET

Stock

2500

Min.Order

0

Region

AMERICA Buy from Distributor

MOUSER

Stock

182

Min.Order

1

Region

WORLDWIDE Buy from Distributor

Farnell Element14

Stock

775

Min.Order

1

Distributor reported inventory date: 2021-10-26

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

DPAK

Operating Temperature (°C)

(min)

-40

(max)

125

Output Voltage (V) (nom)

5

Output Tolerance (typ)

5

Output Current (A) (nom)

0.1

Budgetary Price (US$)* / Qty

0.368 / 1k

Country of Origin

CHINA

LM2931AZ50R

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.276 / 1k

Distributor availability ofLM2931AZ50R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 3462 1 Buy from Distributor
RS COMPONENTS EUROPE 30 10 Buy from Distributor
MOUSER WORLDWIDE 1077 1 Buy from Distributor

Distributor reported inventory date: 2021-10-26

Distributor Name

DIGIKEY

Stock

3462

Min.Order

1

Region

WORLDWIDE Buy from Distributor

RS COMPONENTS

Stock

30

Min.Order

10

MOUSER

Stock

1077

Min.Order

1

Region

WORLDWIDE Buy from Distributor

Distributor reported inventory date: 2021-10-26

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

TO-92

Operating Temperature (°C)

(min)

-40

(max)

125

Output Voltage (V) (nom)

5

Output Tolerance (typ)

5

Output Current (A) (nom)

0.1

Budgetary Price (US$)* / Qty

0.276 / 1k

Country of Origin

CHINA

LM2931AD33R

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.276 / 1k

Distributor availability ofLM2931AD33R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 8993 1 Buy from Distributor
AVNET AMERICA 10000 0 Buy from Distributor
FUTURE WORLDWIDE 5000 2500 Buy from Distributor
MOUSER WORLDWIDE 3379 1 Buy from Distributor
Farnell Element14 EUROPE 1396 1 Buy from Distributor

Distributor reported inventory date: 2021-10-26

Distributor Name

DIGIKEY

Stock

8993

Min.Order

1

Region

WORLDWIDE Buy from Distributor

AVNET

Stock

10000

Min.Order

0

Region

AMERICA Buy from Distributor

FUTURE

Stock

5000

Min.Order

2500

Region

WORLDWIDE Buy from Distributor

MOUSER

Stock

3379

Min.Order

1

Region

WORLDWIDE Buy from Distributor

Farnell Element14

Stock

1396

Min.Order

1

Distributor reported inventory date: 2021-10-26

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

SO-8

Operating Temperature (°C)

(min)

-40

(max)

125

Output Voltage (V) (nom)

3.3

Output Tolerance (typ)

5

Output Current (A) (nom)

0.1

Budgetary Price (US$)* / Qty

0.276 / 1k

Country of Origin

CHINA

(*) Suggested Resale Price (USD) per defined quantity for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors