LM2931

Active

Very low drop voltage regulators with inhibit function

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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)

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Related Applications

Industrial

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STMicroelectronics - LM2931

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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
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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 7 distributors

Distributor availability ofLM2931AD50R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2493 1 Order Now
RS COMPONENTS EUROPE 1220 1 Order Now
AVNET AMERICA 10000 0 Order Now
FUTURE WORLDWIDE 2500 2500 Order Now
MOUSER WORLDWIDE 2662 1 Order Now
Farnell Element14 EUROPE 2472 1 Order Now
ANGLIA Live EUROPE 9814 1 Order Now

Distributor reported inventory date: 2021-05-13

Distributor Name

DIGIKEY

Stock

2493

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

1220

Min.Order

1

Region

EUROPE Order Now

AVNET

Stock

10000

Min.Order

0

Region

AMERICA Order Now

FUTURE

Stock

2500

Min.Order

2500

Region

WORLDWIDE Order Now

MOUSER

Stock

2662

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

2472

Min.Order

1

Region

EUROPE Order Now

ANGLIA Live

Stock

9814

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-05-13

Buy Direct
Active
EAR99 NEC Tape And Reel SO-8 -40 125 5 0.24 / 1k
MORE INFO

Output Tolerance (typ):

5

Output Current (A) (nom):

0.1

Unit Price (US$):

0.24

Country of Origin:

CHINA

LM2931ADT50R Available at 5 distributors

Distributor availability ofLM2931ADT50R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 8597 1 Order Now
RS COMPONENTS EUROPE 1130 1 Order Now
AVNET AMERICA 2500 0 Order Now
MOUSER WORLDWIDE 2686 1 Order Now
Farnell Element14 EUROPE 1002 1 Order Now

Distributor reported inventory date: 2021-05-13

Distributor Name

DIGIKEY

Stock

8597

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

1130

Min.Order

1

Region

EUROPE Order Now

AVNET

Stock

2500

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

2686

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

1002

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-05-13

Buy Direct
Active
EAR99 NEC Tape And Reel DPAK -40 125 5 0.32 / 1k
MORE INFO

Output Tolerance (typ):

5

Output Current (A) (nom):

0.1

Unit Price (US$):

0.32

Country of Origin:

CHINA

LM2931AZ50R Available at 4 distributors

Distributor availability ofLM2931AZ50R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1893 1 Order Now
RS COMPONENTS EUROPE 80 10 Order Now
MOUSER WORLDWIDE 17390 1 Order Now
Farnell Element14 EUROPE 21 1 Order Now

Distributor reported inventory date: 2021-05-13

Distributor Name

DIGIKEY

Stock

1893

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

80

Min.Order

10

Region

EUROPE Order Now

MOUSER

Stock

17390

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

21

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-05-13

Buy Direct
Active
EAR99 NEC Tape And Reel TO-92 -40 125 5 0.24 / 1k
MORE INFO

Output Tolerance (typ):

5

Output Current (A) (nom):

0.1

Unit Price (US$):

0.24

Country of Origin:

CHINA

LM2931AD33R Available at 4 distributors

Distributor availability ofLM2931AD33R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 6210 1 Order Now
AVNET AMERICA 10000 0 Order Now
MOUSER WORLDWIDE 4588 1 Order Now
Farnell Element14 EUROPE 1599 1 Order Now

Distributor reported inventory date: 2021-05-13

Distributor Name

DIGIKEY

Stock

6210

Min.Order

1

Region

WORLDWIDE Order Now

AVNET

Stock

10000

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

4588

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

1599

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-05-13

Buy Direct
Active
EAR99 NEC Tape And Reel SO-8 -40 125 3.3 0.24 / 1k
MORE INFO

Output Tolerance (typ):

5

Output Current (A) (nom):

0.1

Unit Price (US$):

0.24

Country of Origin:

CHINA

LM2931AD50R

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.24 / 1k

Distributor availability ofLM2931AD50R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2493 1 Order Now
RS COMPONENTS EUROPE 1220 1 Order Now
AVNET AMERICA 10000 0 Order Now
FUTURE WORLDWIDE 2500 2500 Order Now
MOUSER WORLDWIDE 2662 1 Order Now
Farnell Element14 EUROPE 2472 1 Order Now
ANGLIA Live EUROPE 9814 1 Order Now

Distributor reported inventory date: 2021-05-13

Distributor Name

DIGIKEY

Stock

2493

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

1220

Min.Order

1

Region

EUROPE Order Now

AVNET

Stock

10000

Min.Order

0

Region

AMERICA Order Now

FUTURE

Stock

2500

Min.Order

2500

Region

WORLDWIDE Order Now

MOUSER

Stock

2662

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

2472

Min.Order

1

Region

EUROPE Order Now

ANGLIA Live

Stock

9814

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-05-13

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

0.24 / 1k

Country of Origin

CHINA

LM2931ADT50R

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.32 / 1k

Distributor availability ofLM2931ADT50R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 8597 1 Order Now
RS COMPONENTS EUROPE 1130 1 Order Now
AVNET AMERICA 2500 0 Order Now
MOUSER WORLDWIDE 2686 1 Order Now
Farnell Element14 EUROPE 1002 1 Order Now

Distributor reported inventory date: 2021-05-13

Distributor Name

DIGIKEY

Stock

8597

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

1130

Min.Order

1

Region

EUROPE Order Now

AVNET

Stock

2500

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

2686

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

1002

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-05-13

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

0.32 / 1k

Country of Origin

CHINA

LM2931AZ50R

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.24 / 1k

Distributor availability ofLM2931AZ50R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1893 1 Order Now
RS COMPONENTS EUROPE 80 10 Order Now
MOUSER WORLDWIDE 17390 1 Order Now
Farnell Element14 EUROPE 21 1 Order Now

Distributor reported inventory date: 2021-05-13

Distributor Name

DIGIKEY

Stock

1893

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

80

Min.Order

10

Region

EUROPE Order Now

MOUSER

Stock

17390

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

21

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-05-13

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

0.24 / 1k

Country of Origin

CHINA

LM2931AD33R

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.24 / 1k

Distributor availability ofLM2931AD33R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 6210 1 Order Now
AVNET AMERICA 10000 0 Order Now
MOUSER WORLDWIDE 4588 1 Order Now
Farnell Element14 EUROPE 1599 1 Order Now

Distributor reported inventory date: 2021-05-13

Distributor Name

DIGIKEY

Stock

6210

Min.Order

1

Region

WORLDWIDE Order Now

AVNET

Stock

10000

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

4588

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

1599

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-05-13

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

0.24 / 1k

Country of Origin

CHINA

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