Very low drop voltage regulators with inhibit function

Download datasheet

Order from our eStore and our distributors

Buy now
Overview
Tools & Software
Resources
Solutions
Quality & Reliability
Sales Briefcase
eDesignSuite
Get Started
Sample & Buy
Partner products
  • 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)

Sample & Buy

Part Number
Package
Packing Type
Output Voltage (V) (nom)
Output Tolerance (typ)
Output Current (A) (nom)
Marketing Status
Budgetary Price (US$)*
Quantity
More info
Order from Distributors
Order from ST
LM2931D-R SO-8 Tape And Reel - 5 0.1
Active
0.24 10000
MORE INFO

ECCN (US):

EAR99

Country of Origin:

CHINA

Check Availability

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 3661 1 Order Now
Farnell Element14 EUROPE 1469 1 Order Now
RUTRONIK EUROPE 7500 2500 Order Now

Distributor reported inventory date: 2019-09-20

Distributor Name

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

3661

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

1469

Min.Order

1

Region

EUROPE Order Now

RUTRONIK

Stock

7500

Min.Order

2500

Region

EUROPE Order Now

Distributor reported inventory date: 2019-09-20

Buy now
LM2931AD50R SO-8 Tape And Reel 5 5 0.1
Active
0.24 10000
MORE INFO

ECCN (US):

EAR99

Country of Origin:

CHINA

Check Availability

Distributor availability ofLM2931AD50R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 4033 1 Order Now
RS COMPONENTS EUROPE 1710 1 Order Now
AVNET AMERICA 2500 0 Order Now
ARROW EUROPE 2500 0 Order Now
Newark Element14 AMERICA 31 0 Order Now
MOUSER WORLDWIDE 2929 1 Order Now
ANGLIA Live EUROPE 11780 1 Order Now
RUTRONIK EUROPE 2500 2500 Order Now

Distributor reported inventory date: 2019-09-20

Distributor Name

DIGIKEY

Stock

4033

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

1710

Min.Order

1

Region

EUROPE Order Now

AVNET

Stock

2500

Min.Order

0

Region

AMERICA Order Now

ARROW

Stock

2500

Min.Order

0

Region

EUROPE Order Now

Newark Element14

Stock

31

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

2929

Min.Order

1

Region

WORLDWIDE Order Now

ANGLIA Live

Stock

11780

Min.Order

1

Region

EUROPE Order Now

RUTRONIK

Stock

2500

Min.Order

2500

Region

EUROPE Order Now

Distributor reported inventory date: 2019-09-20

Buy now
LM2931ADT50R DPAK Tape And Reel 5 5 0.1
Active
0.32 10000
MORE INFO

ECCN (US):

EAR99

Country of Origin:

CHINA

Check Availability

Distributor availability ofLM2931ADT50R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 9974 1 Order Now
RS COMPONENTS EUROPE 195 1 Order Now
MOUSER WORLDWIDE 2924 1 Order Now
Farnell Element14 EUROPE 2923 1 Order Now

Distributor reported inventory date: 2019-09-20

Distributor Name

DIGIKEY

Stock

9974

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

195

Min.Order

1

Region

EUROPE Order Now

MOUSER

Stock

2924

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

2923

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-09-20

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

ECCN (US):

EAR99

Country of Origin:

CHINA

Check Availability

Distributor availability ofLM2931AZ50R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 3970 1 Order Now
RS COMPONENTS EUROPE 1730 10 Order Now
MOUSER WORLDWIDE 3849 1 Order Now
Farnell Element14 EUROPE 575 1 Order Now

Distributor reported inventory date: 2019-09-20

Distributor Name

DIGIKEY

Stock

3970

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

1730

Min.Order

10

Region

EUROPE Order Now

MOUSER

Stock

3849

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

575

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-09-20

Buy now
LM2931AD33R SO-8 Tape And Reel 3.3 5 0.1
Active
0.24 10000
MORE INFO

ECCN (US):

EAR99

Country of Origin:

CHINA

Check Availability

Distributor availability ofLM2931AD33R

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 25796 1 Order Now
FUTURE WORLDWIDE 7500 2500 Order Now
ARROW EUROPE 5000 0 Order Now
ARROW AMERICA 70000 2500 Order Now
MOUSER WORLDWIDE 4941 1 Order Now
Farnell Element14 EUROPE 1052 1 Order Now

Distributor reported inventory date: 2019-09-20

Distributor Name

DIGIKEY

Stock

25796

Min.Order

1

Region

WORLDWIDE Order Now

FUTURE

Stock

7500

Min.Order

2500

Region

WORLDWIDE Order Now

ARROW

Stock

5000

Min.Order

0

Region

EUROPE Order Now

ARROW

Stock

70000

Min.Order

2500

Region

AMERICA Order Now

MOUSER

Stock

4941

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

1052

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-09-20

Buy now

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 3661 1 Order Now
Farnell Element14 EUROPE 1469 1 Order Now
RUTRONIK EUROPE 7500 2500 Order Now

Distributor reported inventory date: 2019-09-20

Distributor Name

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

3661

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

1469

Min.Order

1

Region

EUROPE Order Now

RUTRONIK

Stock

7500

Min.Order

2500

Region

EUROPE Order Now

Distributor reported inventory date: 2019-09-20

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 4033 1 Order Now
RS COMPONENTS EUROPE 1710 1 Order Now
AVNET AMERICA 2500 0 Order Now
ARROW EUROPE 2500 0 Order Now
Newark Element14 AMERICA 31 0 Order Now
MOUSER WORLDWIDE 2929 1 Order Now
ANGLIA Live EUROPE 11780 1 Order Now
RUTRONIK EUROPE 2500 2500 Order Now

Distributor reported inventory date: 2019-09-20

Distributor Name

DIGIKEY

Stock

4033

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

1710

Min.Order

1

Region

EUROPE Order Now

AVNET

Stock

2500

Min.Order

0

Region

AMERICA Order Now

ARROW

Stock

2500

Min.Order

0

Region

EUROPE Order Now

Newark Element14

Stock

31

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

2929

Min.Order

1

Region

WORLDWIDE Order Now

ANGLIA Live

Stock

11780

Min.Order

1

Region

EUROPE Order Now

RUTRONIK

Stock

2500

Min.Order

2500

Region

EUROPE Order Now

Distributor reported inventory date: 2019-09-20

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 9974 1 Order Now
RS COMPONENTS EUROPE 195 1 Order Now
MOUSER WORLDWIDE 2924 1 Order Now
Farnell Element14 EUROPE 2923 1 Order Now

Distributor reported inventory date: 2019-09-20

Distributor Name

DIGIKEY

Stock

9974

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

195

Min.Order

1

Region

EUROPE Order Now

MOUSER

Stock

2924

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

2923

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-09-20

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

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 3970 1 Order Now
RS COMPONENTS EUROPE 1730 10 Order Now
MOUSER WORLDWIDE 3849 1 Order Now
Farnell Element14 EUROPE 575 1 Order Now

Distributor reported inventory date: 2019-09-20

Distributor Name

DIGIKEY

Stock

3970

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

1730

Min.Order

10

Region

EUROPE Order Now

MOUSER

Stock

3849

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

575

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-09-20

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 25796 1 Order Now
FUTURE WORLDWIDE 7500 2500 Order Now
ARROW EUROPE 5000 0 Order Now
ARROW AMERICA 70000 2500 Order Now
MOUSER WORLDWIDE 4941 1 Order Now
Farnell Element14 EUROPE 1052 1 Order Now

Distributor reported inventory date: 2019-09-20

Distributor Name

DIGIKEY

Stock

25796

Min.Order

1

Region

WORLDWIDE Order Now

FUTURE

Stock

7500

Min.Order

2500

Region

WORLDWIDE Order Now

ARROW

Stock

5000

Min.Order

0

Region

EUROPE Order Now

ARROW

Stock

70000

Min.Order

2500

Region

AMERICA Order Now

MOUSER

Stock

4941

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

1052

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-09-20

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

Recommended for you

Related Applications

Smart Farming

00 Files selected for download

Technical Documentation

    • Description Version Size Action
      DS1760
      Very low drop voltage regulators with inhibit function
      23.0
      1.1 MB
      PDF
      DS1760

      Very low drop voltage regulators with inhibit function

Publications and Collaterals

    • Description Version Size Action
      Linear and Switching Voltage Regulators Selection Guide 3.0
      370.88 KB
      PDF

      Linear and Switching Voltage Regulators Selection Guide

    • Description Version Size Action
      Low-dropout (LDO) linear voltage regulators - Quick Reference Guide 2.0
      216.23 KB
      PDF
      Power management for handheld and portable 2.0
      1.09 MB
      PDF

      Low-dropout (LDO) linear voltage regulators - Quick Reference Guide

      Power management for handheld and portable

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
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

LM2931ADT50R

Package:

DPAK

Material Declaration**:

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

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.