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  • The L4941 is a three terminal 5V positive regulators available in TO-220 and DPAK packages, making it useful in a wide range of industrial and consumer applications. Thanks to its very low input/output voltage drop, these devices are particularly suitable for battery powered equipments, reducing consumption and prolonging battery life. It employs internal current limiting, antisaturation circuit, thermal shut-down and safe area protection.

    Key Features

    • Low dropout voltage (450mV typ. at 1A)
    • Thermal shutdown
    • Very low quiescent current
    • Reverse polarity protection
    • Short circuit protection

Circuit Diagram

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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
L4941BV TO-220 Tube 5 4 1
Active
0.406 10000
MORE INFO

ECCN (US):

EAR99

Country of Origin:

CHINA

Check Availability

Distributor availability ofL4941BV

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 113 1 Order Now
RS COMPONENTS EUROPE 1910 1 Order Now
AVNET AMERICA 11 0 Order Now
FUTURE WORLDWIDE 676 1 Order Now
ARROW EUROPE 18481 0 Order Now
Newark Element14 AMERICA 8 0 Order Now
ARROW AMERICA 2835 1000 Order Now
MOUSER WORLDWIDE 1395 1 Order Now
Farnell Element14 EUROPE 151 1 Order Now
ANGLIA Live EUROPE 3180 1 Order Now
RUTRONIK EUROPE 50 50 Order Now

Distributor reported inventory date: 2019-09-17

Distributor Name

DIGIKEY

Stock

113

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

1910

Min.Order

1

Region

EUROPE Order Now

AVNET

Stock

11

Min.Order

0

Region

AMERICA Order Now

FUTURE

Stock

676

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

18481

Min.Order

0

Region

EUROPE Order Now

Newark Element14

Stock

8

Min.Order

0

Region

AMERICA Order Now

ARROW

Stock

2835

Min.Order

1000

Region

AMERICA Order Now

MOUSER

Stock

1395

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

151

Min.Order

1

Region

EUROPE Order Now

ANGLIA Live

Stock

3180

Min.Order

1

Region

EUROPE Order Now

RUTRONIK

Stock

50

Min.Order

50

Region

EUROPE Order Now

Distributor reported inventory date: 2019-09-17

Buy now
L4941BDT-TR DPAK Tape And Reel 5 4 1
Active
0.568 10000
MORE INFO

ECCN (US):

EAR99

Country of Origin:

CHINA

Check Availability

Distributor availability ofL4941BDT-TR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 4402 1 Order Now
RS COMPONENTS EUROPE 13055 5 Order Now
FUTURE WORLDWIDE 2500 2500 Order Now
ARROW EUROPE 5000 0 Order Now
ARROW AMERICA 5000 2500 Order Now
MOUSER WORLDWIDE 10259 1 Order Now
Farnell Element14 EUROPE 2205 1 Order Now

Distributor reported inventory date: 2019-09-16

Distributor Name

DIGIKEY

Stock

4402

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

13055

Min.Order

5

Region

EUROPE Order Now

FUTURE

Stock

2500

Min.Order

2500

Region

WORLDWIDE Order Now

ARROW

Stock

5000

Min.Order

0

Region

EUROPE Order Now

ARROW

Stock

5000

Min.Order

2500

Region

AMERICA Order Now

MOUSER

Stock

10259

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

2205

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-09-16

Buy now

L4941BV

Package

TO-220

Packing Type

Tube

Unit Price (US$)

0.406*

Distributor availability ofL4941BV

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 113 1 Order Now
RS COMPONENTS EUROPE 1910 1 Order Now
AVNET AMERICA 11 0 Order Now
FUTURE WORLDWIDE 676 1 Order Now
ARROW EUROPE 18481 0 Order Now
Newark Element14 AMERICA 8 0 Order Now
ARROW AMERICA 2835 1000 Order Now
MOUSER WORLDWIDE 1395 1 Order Now
Farnell Element14 EUROPE 151 1 Order Now
ANGLIA Live EUROPE 3180 1 Order Now
RUTRONIK EUROPE 50 50 Order Now

Distributor reported inventory date: 2019-09-17

Distributor Name

DIGIKEY

Stock

113

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

1910

Min.Order

1

Region

EUROPE Order Now

AVNET

Stock

11

Min.Order

0

Region

AMERICA Order Now

FUTURE

Stock

676

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

18481

Min.Order

0

Region

EUROPE Order Now

Newark Element14

Stock

8

Min.Order

0

Region

AMERICA Order Now

ARROW

Stock

2835

Min.Order

1000

Region

AMERICA Order Now

MOUSER

Stock

1395

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

151

Min.Order

1

Region

EUROPE Order Now

ANGLIA Live

Stock

3180

Min.Order

1

Region

EUROPE Order Now

RUTRONIK

Stock

50

Min.Order

50

Region

EUROPE Order Now

Distributor reported inventory date: 2019-09-17

Output Voltage (V) (nom)

5

Output Tolerance (typ)

4

Output Current (A) (nom)

1

Marketing Status

Active

Unit Price (US$)

0.406

Quantity

10000

ECCN (US)

EAR99

Country of Origin

CHINA

L4941BDT-TR

Package

DPAK

Packing Type

Tape And Reel

Unit Price (US$)

0.568*

Distributor availability ofL4941BDT-TR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 4402 1 Order Now
RS COMPONENTS EUROPE 13055 5 Order Now
FUTURE WORLDWIDE 2500 2500 Order Now
ARROW EUROPE 5000 0 Order Now
ARROW AMERICA 5000 2500 Order Now
MOUSER WORLDWIDE 10259 1 Order Now
Farnell Element14 EUROPE 2205 1 Order Now

Distributor reported inventory date: 2019-09-16

Distributor Name

DIGIKEY

Stock

4402

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

13055

Min.Order

5

Region

EUROPE Order Now

FUTURE

Stock

2500

Min.Order

2500

Region

WORLDWIDE Order Now

ARROW

Stock

5000

Min.Order

0

Region

EUROPE Order Now

ARROW

Stock

5000

Min.Order

2500

Region

AMERICA Order Now

MOUSER

Stock

10259

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

2205

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-09-16

Output Voltage (V) (nom)

5

Output Tolerance (typ)

4

Output Current (A) (nom)

1

Marketing Status

Active

Unit Price (US$)

0.568

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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      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**
L4941BDT-TR
Active
DPAK Industrial Ecopack2
L4941BV
Active
TO-220 Industrial Ecopack1

L4941BDT-TR

Package:

DPAK

Material Declaration**:

PDF XML

Marketing Status

Active

Package

DPAK

Grade

Industrial

RoHS Compliance Grade

Ecopack2

L4941BV

Package:

TO-220

Material Declaration**:

PDF XML

Marketing Status

Active

Package

TO-220

Grade

Industrial

RoHS Compliance Grade

Ecopack1

(**) 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.