Very low drop voltage regulators with inhibit function

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  • 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.

    Key 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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Part Number
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Output Voltage (V) (nom)
Output Tolerance (typ)
Output Current (A) (nom)
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LM2931D-R SO-8 Tape And Reel - 5 0.1
Active
0.24 10000
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ECCN (US):

EAR99

Country of Origin:

CHINA

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LM2931AD50R SO-8 Tape And Reel 5 5 0.1
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0.24 10000
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ECCN (US):

EAR99

Country of Origin:

CHINA

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LM2931ADT50R DPAK Tape And Reel 5 5 0.1
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0.32 10000
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ECCN (US):

EAR99

Country of Origin:

CHINA

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LM2931ADT50RY DPAK Tape And Reel 5 5 0.1
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0.358 10000
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ECCN (US):

EAR99

Country of Origin:

-

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LM2931ADT33RY DPAK Tape And Reel 3.3 5 0.1
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0.358 10000
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ECCN (US):

EAR99

Country of Origin:

CHINA

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LM2931AZ50R TO-92 Tape And Reel 5 5 0.1
Active
0.24 10000
MORE INFO

ECCN (US):

EAR99

Country of Origin:

CHINA

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DIGIKEY WORLDWIDE 3846 1 Order Now
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LM2931AD33R SO-8 Tape And Reel 3.3 5 0.1
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0.24 10000
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ECCN (US):

EAR99

Country of Origin:

CHINA

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Distributor availability ofLM2931AD33R

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DIGIKEY WORLDWIDE 26776 1 Order Now
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LM2931D-R

Package

SO-8

Packing Type

Tape And Reel

Unit Price (US$)

0.24*

Distributor availability ofLM2931D-R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2911 1 Order Now
RS COMPONENTS EUROPE 1000 1 Order Now
AVNET AMERICA 22500 0 Order Now
ARROW EUROPE 2500 0 Order Now
MOUSER WORLDWIDE 1161 1 Order Now
Farnell Element14 EUROPE 1476 1 Order Now
RUTRONIK EUROPE 7500 2500 Order Now

Distributor reported inventory date: 2019-07-16

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DIGIKEY

Stock

2911

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

1000

Min.Order

1

Region

EUROPE Order Now

AVNET

Stock

22500

Min.Order

0

Region

AMERICA Order Now

ARROW

Stock

2500

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

1161

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

1476

Min.Order

1

Region

EUROPE Order Now

RUTRONIK

Stock

7500

Min.Order

2500

Region

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Distributor reported inventory date: 2019-07-16

Output Voltage (V) (nom)

-

Output Tolerance (typ)

5

Output Current (A) (nom)

0.1

Marketing Status

Active

Unit Price (US$)

0.24

Quantity

10000

ECCN (US)

EAR99

Country of Origin

CHINA

LM2931AD50R

Package

SO-8

Packing Type

Tape And Reel

Unit Price (US$)

0.24*

Distributor availability ofLM2931AD50R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 4048 1 Order Now
RS COMPONENTS EUROPE 1760 1 Order Now
AVNET AMERICA 2500 0 Order Now
FUTURE WORLDWIDE 7500 2500 Order Now
Newark Element14 AMERICA 31 0 Order Now
MOUSER WORLDWIDE 3064 1 Order Now
ANGLIA Live EUROPE 12000 1 Order Now

Distributor reported inventory date: 2019-07-16

Distributor Name

DIGIKEY

Stock

4048

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

1760

Min.Order

1

Region

EUROPE Order Now

AVNET

Stock

2500

Min.Order

0

Region

AMERICA Order Now

FUTURE

Stock

7500

Min.Order

2500

Region

WORLDWIDE Order Now

Newark Element14

Stock

31

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

3064

Min.Order

1

Region

WORLDWIDE Order Now

ANGLIA Live

Stock

12000

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-07-16

Output Voltage (V) (nom)

5

Output Tolerance (typ)

5

Output Current (A) (nom)

0.1

Marketing Status

Active

Unit Price (US$)

0.24

Quantity

10000

ECCN (US)

EAR99

Country of Origin

CHINA

LM2931ADT50R

Package

DPAK

Packing Type

Tape And Reel

Unit Price (US$)

0.32*

Distributor availability ofLM2931ADT50R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 10770 1 Order Now
RS COMPONENTS EUROPE 195 1 Order Now
MOUSER WORLDWIDE 3374 1 Order Now
Farnell Element14 EUROPE 2936 1 Order Now

Distributor reported inventory date: 2019-07-16

Distributor Name

DIGIKEY

Stock

10770

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

195

Min.Order

1

Region

EUROPE Order Now

MOUSER

Stock

3374

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

2936

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-07-16

Output Voltage (V) (nom)

5

Output Tolerance (typ)

5

Output Current (A) (nom)

0.1

Marketing Status

Active

Unit Price (US$)

0.32

Quantity

10000

ECCN (US)

EAR99

Country of Origin

CHINA

LM2931ADT50RY

Package

DPAK

Packing Type

Tape And Reel

Unit Price (US$)

0.358*

Distributor availability ofLM2931ADT50RY

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 923 1 Order Now
MOUSER WORLDWIDE 1216 1 Order Now

Distributor reported inventory date: 2019-07-16

Distributor Name

DIGIKEY

Stock

923

Min.Order

1

Region

WORLDWIDE Order Now

MOUSER

Stock

1216

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2019-07-16

Output Voltage (V) (nom)

5

Output Tolerance (typ)

5

Output Current (A) (nom)

0.1

Marketing Status

NRND

Unit Price (US$)

0.358

Quantity

10000

ECCN (US)

EAR99

Country of Origin

-

LM2931ADT33RY

Package

DPAK

Packing Type

Tape And Reel

Unit Price (US$)

0.358*

Output Voltage (V) (nom)

3.3

Output Tolerance (typ)

5

Output Current (A) (nom)

0.1

Marketing Status

Active

Unit Price (US$)

0.358

Quantity

10000

ECCN (US)

EAR99

Country of Origin

CHINA

LM2931AZ50R

Package

TO-92

Packing Type

Tape And Reel

Unit Price (US$)

0.24*

Distributor availability ofLM2931AZ50R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 3846 1 Order Now
RS COMPONENTS EUROPE 1740 10 Order Now
MOUSER WORLDWIDE 1869 1 Order Now
Farnell Element14 EUROPE 600 1 Order Now

Distributor reported inventory date: 2019-07-16

Distributor Name

DIGIKEY

Stock

3846

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

1740

Min.Order

10

Region

EUROPE Order Now

MOUSER

Stock

1869

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

600

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-07-16

Output Voltage (V) (nom)

5

Output Tolerance (typ)

5

Output Current (A) (nom)

0.1

Marketing Status

Active

Unit Price (US$)

0.24

Quantity

10000

ECCN (US)

EAR99

Country of Origin

CHINA

LM2931AD33R

Package

SO-8

Packing Type

Tape And Reel

Unit Price (US$)

0.24*

Distributor availability ofLM2931AD33R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 26776 1 Order Now
FUTURE WORLDWIDE 22500 2500 Order Now
ARROW EUROPE 5000 0 Order Now
ARROW AMERICA 72500 2500 Order Now
MOUSER WORLDWIDE 3581 1 Order Now
Farnell Element14 EUROPE 1337 1 Order Now

Distributor reported inventory date: 2019-07-16

Distributor Name

DIGIKEY

Stock

26776

Min.Order

1

Region

WORLDWIDE Order Now

FUTURE

Stock

22500

Min.Order

2500

Region

WORLDWIDE Order Now

ARROW

Stock

5000

Min.Order

0

Region

EUROPE Order Now

ARROW

Stock

72500

Min.Order

2500

Region

AMERICA Order Now

MOUSER

Stock

3581

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

1337

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-07-16

Output Voltage (V) (nom)

3.3

Output Tolerance (typ)

5

Output Current (A) (nom)

0.1

Marketing Status

Active

Unit Price (US$)

0.24

Quantity

10000

ECCN (US)

EAR99

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

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Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
LM2931AD33R
Active
SO-8 Industrial Ecopack2
LM2931AD50R
Active
SO-8 Industrial Ecopack2
LM2931ADT33RY
Active
DPAK Automotive Ecopack2
LM2931ADT50R
Active
DPAK Industrial Ecopack2
LM2931ADT50RY
NRND
DPAK Automotive Ecopack2
LM2931AZ50R
Active
TO-92 Industrial Ecopack2
LM2931D-R
Active
SO-8 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

LM2931ADT33RY

Package:

DPAK

Material Declaration**:

PDF XML

Marketing Status

Active

Package

DPAK

Grade

Automotive

RoHS Compliance Grade

Ecopack2

LM2931ADT50R

Package:

DPAK

Material Declaration**:

Marketing Status

Active

Package

DPAK

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LM2931ADT50RY

Package:

DPAK

Material Declaration**:

PDF XML

Marketing Status

NRND

Package

DPAK

Grade

Automotive

RoHS Compliance Grade

Ecopack2

LM2931AZ50R

Package:

TO-92

Material Declaration**:

PDF XML

Marketing Status

Active

Package

TO-92

Grade

Industrial

RoHS Compliance Grade

Ecopack2

LM2931D-R

Package:

SO-8

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SO-8

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.