LM2931

Active
Design Win

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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STMicroelectronics - LM2931

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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

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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$)*/Qty
Output Tolerance (typ)
Output Current (A) (nom)
Unit Price (US$)
Country of Origin
min
max
LM2931AD50R Available at 5 distributors

Distributor availability ofLM2931AD50R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 35014 1 Buy from Distributor
AVNET AMERICA 7500 0 Buy from Distributor
Newark Element14 AMERICA 125 0 Buy from Distributor
Farnell Element14 EUROPE 245 1 Buy from Distributor
ANGLIA Live EUROPE 10401 1 Buy from Distributor

Distributor reported inventory date: 2022-07-16

Distributor Name

DIGIKEY

Stock

35014

Min.Order

1

Region

WORLDWIDE Buy from Distributor

AVNET

Stock

7500

Min.Order

0

Region

AMERICA Buy from Distributor

Newark Element14

Stock

125

Min.Order

0

Region

AMERICA Buy from Distributor

Farnell Element14

Stock

245

Min.Order

1

ANGLIA Live

Stock

10401

Min.Order

1

Distributor reported inventory date: 2022-07-16

Active
EAR99 NEC Tape and Reel SO-8 -40 125 5

5

0.1

0.4236

CHINA

LM2931ADT50R Available at 3 distributors

Distributor availability ofLM2931ADT50R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 37664 1 Buy from Distributor
MOUSER WORLDWIDE 2464 1 Buy from Distributor
Farnell Element14 EUROPE 3357 1 Buy from Distributor

Distributor reported inventory date: 2022-07-17

Distributor Name

DIGIKEY

Stock

37664

Min.Order

1

Region

WORLDWIDE Buy from Distributor

MOUSER

Stock

2464

Min.Order

1

Region

WORLDWIDE Buy from Distributor

Farnell Element14

Stock

3357

Min.Order

1

Distributor reported inventory date: 2022-07-17

Active
EAR99 NEC Tape and Reel DPAK -40 125 5

5

0.1

0.4382

CHINA

LM2931AZ50R Available at 3 distributors

Distributor availability ofLM2931AZ50R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 9973 1 Buy from Distributor
AVNET AMERICA 4000 0 Buy from Distributor
MOUSER WORLDWIDE 17827 1 Buy from Distributor

Distributor reported inventory date: 2022-07-17

Distributor Name

DIGIKEY

Stock

9973

Min.Order

1

Region

WORLDWIDE Buy from Distributor

AVNET

Stock

4000

Min.Order

0

Region

AMERICA Buy from Distributor

MOUSER

Stock

17827

Min.Order

1

Region

WORLDWIDE Buy from Distributor

Distributor reported inventory date: 2022-07-17

Active
EAR99 NEC Tape and Reel TO-92 -40 125 5

5

0.1

0.3652

CHINA

LM2931AD33R Available at 4 distributors

Distributor availability ofLM2931AD33R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 36770 1 Buy from Distributor
FUTURE WORLDWIDE 482500 0 Buy from Distributor
MOUSER WORLDWIDE 1102 1 Buy from Distributor
Farnell Element14 EUROPE 4870 1 Buy from Distributor

Distributor reported inventory date: 2022-07-17

Distributor Name

DIGIKEY

Stock

36770

Min.Order

1

Region

WORLDWIDE Buy from Distributor

FUTURE

Stock

482500

Min.Order

0

Region

WORLDWIDE Buy from Distributor

MOUSER

Stock

1102

Min.Order

1

Region

WORLDWIDE Buy from Distributor

Farnell Element14

Stock

4870

Min.Order

1

Distributor reported inventory date: 2022-07-17

Active
EAR99 NEC Tape and Reel SO-8 -40 125 3.3

5

0.1

0.4236

CHINA

LM2931AD50R Active

Package:
SO-8
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

Part Number:

LM2931AD50R

ECCN (EU):

NEC

Packing Type:

Tape and Reel

Operating Temperature (°C)

Min:

-40

Max:

125

Output Voltage (V) (nom):

5

Output Tolerance (typ):

5

Output Current (A) (nom):

0.1

Country of Origin:

CHINA

Distributor availability ofLM2931AD50R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 35014 1 Buy from Distributor
AVNET AMERICA 7500 0 Buy from Distributor
Newark Element14 AMERICA 125 0 Buy from Distributor
Farnell Element14 EUROPE 245 1 Buy from Distributor
ANGLIA Live EUROPE 10401 1 Buy from Distributor

Distributor reported inventory date: 2022-07-16

Distributor Name

DIGIKEY

Stock

35014

Min.Order

1

Region

WORLDWIDE Buy from Distributor

AVNET

Stock

7500

Min.Order

0

Region

AMERICA Buy from Distributor

Newark Element14

Stock

125

Min.Order

0

Region

AMERICA Buy from Distributor

Farnell Element14

Stock

245

Min.Order

1

ANGLIA Live

Stock

10401

Min.Order

1

Distributor reported inventory date: 2022-07-16

LM2931ADT50R Active

Package:
DPAK
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

Part Number:

LM2931ADT50R

ECCN (EU):

NEC

Packing Type:

Tape and Reel

Operating Temperature (°C)

Min:

-40

Max:

125

Output Voltage (V) (nom):

5

Output Tolerance (typ):

5

Output Current (A) (nom):

0.1

Country of Origin:

CHINA

Distributor availability ofLM2931ADT50R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 37664 1 Buy from Distributor
MOUSER WORLDWIDE 2464 1 Buy from Distributor
Farnell Element14 EUROPE 3357 1 Buy from Distributor

Distributor reported inventory date: 2022-07-17

Distributor Name

DIGIKEY

Stock

37664

Min.Order

1

Region

WORLDWIDE Buy from Distributor

MOUSER

Stock

2464

Min.Order

1

Region

WORLDWIDE Buy from Distributor

Farnell Element14

Stock

3357

Min.Order

1

Distributor reported inventory date: 2022-07-17

LM2931AZ50R Active

Package:
TO-92
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

Part Number:

LM2931AZ50R

ECCN (EU):

NEC

Packing Type:

Tape and Reel

Operating Temperature (°C)

Min:

-40

Max:

125

Output Voltage (V) (nom):

5

Output Tolerance (typ):

5

Output Current (A) (nom):

0.1

Country of Origin:

CHINA

Distributor availability ofLM2931AZ50R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 9973 1 Buy from Distributor
AVNET AMERICA 4000 0 Buy from Distributor
MOUSER WORLDWIDE 17827 1 Buy from Distributor

Distributor reported inventory date: 2022-07-17

Distributor Name

DIGIKEY

Stock

9973

Min.Order

1

Region

WORLDWIDE Buy from Distributor

AVNET

Stock

4000

Min.Order

0

Region

AMERICA Buy from Distributor

MOUSER

Stock

17827

Min.Order

1

Region

WORLDWIDE Buy from Distributor

Distributor reported inventory date: 2022-07-17

LM2931AD33R Active

Package:
SO-8
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

Part Number:

LM2931AD33R

ECCN (EU):

NEC

Packing Type:

Tape and Reel

Operating Temperature (°C)

Min:

-40

Max:

125

Output Voltage (V) (nom):

3.3

Output Tolerance (typ):

5

Output Current (A) (nom):

0.1

Country of Origin:

CHINA

Distributor availability ofLM2931AD33R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 36770 1 Buy from Distributor
FUTURE WORLDWIDE 482500 0 Buy from Distributor
MOUSER WORLDWIDE 1102 1 Buy from Distributor
Farnell Element14 EUROPE 4870 1 Buy from Distributor

Distributor reported inventory date: 2022-07-17

Distributor Name

DIGIKEY

Stock

36770

Min.Order

1

Region

WORLDWIDE Buy from Distributor

FUTURE

Stock

482500

Min.Order

0

Region

WORLDWIDE Buy from Distributor

MOUSER

Stock

1102

Min.Order

1

Region

WORLDWIDE Buy from Distributor

Farnell Element14

Stock

4870

Min.Order

1

Distributor reported inventory date: 2022-07-17

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(*) 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