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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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Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
L4941BDT-TR
Active
DPAK Industrial Ecopack2
L4941BV
Active
TO-220 Industrial Ecopack2

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

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
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
More info
min
max
L4941BV Available at 9 distributors

Distributor availability ofL4941BV

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 192 1 Order Now
RS COMPONENTS EUROPE 1139 1 Order Now
AVNET AMERICA 1261 0 Order Now
ARROW EUROPE 12285 0 Order Now
ARROW AMERICA 3125 1000 Order Now
MOUSER WORLDWIDE 3435 1 Order Now
Farnell Element14 EUROPE 733 1 Order Now
ANGLIA Live EUROPE 1540 1 Order Now
RUTRONIK EUROPE 1900 50 Order Now

Distributor reported inventory date: 2020-09-30

Distributor Name

DIGIKEY

Stock

192

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

1139

Min.Order

1

Region

EUROPE Order Now

AVNET

Stock

1261

Min.Order

0

Region

AMERICA Order Now

ARROW

Stock

12285

Min.Order

0

Region

EUROPE Order Now

ARROW

Stock

3125

Min.Order

1000

Region

AMERICA Order Now

MOUSER

Stock

3435

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

733

Min.Order

1

Region

EUROPE Order Now

ANGLIA Live

Stock

1540

Min.Order

1

Region

EUROPE Order Now

RUTRONIK

Stock

1900

Min.Order

50

Region

EUROPE Order Now

Distributor reported inventory date: 2020-09-30

Buy now
Active
EAR99 NEC Tube TO-220 -40 150 5 0.406 / 1k
MORE INFO

Output Tolerance (typ):

4

Output Current (A) (nom):

1

Unit Price (US$):

0.406

Country of Origin:

CHINA

L4941BDT-TR Available at 8 distributors

Distributor availability ofL4941BDT-TR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 4057 1 Order Now
COMPEL EUROPE 2347 1 Order Now
RS COMPONENTS EUROPE 10065 5 Order Now
FUTURE WORLDWIDE 8987 1 Order Now
ARROW EUROPE 10000 0 Order Now
ARROW AMERICA 37500 2500 Order Now
MOUSER WORLDWIDE 6201 1 Order Now
Farnell Element14 EUROPE 3970 1 Order Now

Distributor reported inventory date: 2020-09-30

Distributor Name

DIGIKEY

Stock

4057

Min.Order

1

Region

WORLDWIDE Order Now

COMPEL

Stock

2347

Min.Order

1

Region

EUROPE Order Now

RS COMPONENTS

Stock

10065

Min.Order

5

Region

EUROPE Order Now

FUTURE

Stock

8987

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

10000

Min.Order

0

Region

EUROPE Order Now

ARROW

Stock

37500

Min.Order

2500

Region

AMERICA Order Now

MOUSER

Stock

6201

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

3970

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-09-30

Buy now
Active
EAR99 NEC Tape And Reel DPAK -40 150 5 0.568 / 1k
MORE INFO

Output Tolerance (typ):

4

Output Current (A) (nom):

1

Unit Price (US$):

0.568

Country of Origin:

CHINA

L4941BV

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.406 / 1k

Distributor availability ofL4941BV

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 192 1 Order Now
RS COMPONENTS EUROPE 1139 1 Order Now
AVNET AMERICA 1261 0 Order Now
ARROW EUROPE 12285 0 Order Now
ARROW AMERICA 3125 1000 Order Now
MOUSER WORLDWIDE 3435 1 Order Now
Farnell Element14 EUROPE 733 1 Order Now
ANGLIA Live EUROPE 1540 1 Order Now
RUTRONIK EUROPE 1900 50 Order Now

Distributor reported inventory date: 2020-09-30

Distributor Name

DIGIKEY

Stock

192

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

1139

Min.Order

1

Region

EUROPE Order Now

AVNET

Stock

1261

Min.Order

0

Region

AMERICA Order Now

ARROW

Stock

12285

Min.Order

0

Region

EUROPE Order Now

ARROW

Stock

3125

Min.Order

1000

Region

AMERICA Order Now

MOUSER

Stock

3435

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

733

Min.Order

1

Region

EUROPE Order Now

ANGLIA Live

Stock

1540

Min.Order

1

Region

EUROPE Order Now

RUTRONIK

Stock

1900

Min.Order

50

Region

EUROPE Order Now

Distributor reported inventory date: 2020-09-30

ECCN (EU)

NEC

Packing Type

Tube

Package

TO-220

Operating Temperature (°C)

(min)

-40

(max)

150

Output Voltage (V) (nom)

5

Output Tolerance (typ)

4

Output Current (A) (nom)

1

Budgetary Price (US$)* / Qty

0.406 / 1k

Country of Origin

CHINA

L4941BDT-TR

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.568 / 1k

Distributor availability ofL4941BDT-TR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 4057 1 Order Now
COMPEL EUROPE 2347 1 Order Now
RS COMPONENTS EUROPE 10065 5 Order Now
FUTURE WORLDWIDE 8987 1 Order Now
ARROW EUROPE 10000 0 Order Now
ARROW AMERICA 37500 2500 Order Now
MOUSER WORLDWIDE 6201 1 Order Now
Farnell Element14 EUROPE 3970 1 Order Now

Distributor reported inventory date: 2020-09-30

Distributor Name

DIGIKEY

Stock

4057

Min.Order

1

Region

WORLDWIDE Order Now

COMPEL

Stock

2347

Min.Order

1

Region

EUROPE Order Now

RS COMPONENTS

Stock

10065

Min.Order

5

Region

EUROPE Order Now

FUTURE

Stock

8987

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

10000

Min.Order

0

Region

EUROPE Order Now

ARROW

Stock

37500

Min.Order

2500

Region

AMERICA Order Now

MOUSER

Stock

6201

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

3970

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-09-30

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

DPAK

Operating Temperature (°C)

(min)

-40

(max)

150

Output Voltage (V) (nom)

5

Output Tolerance (typ)

4

Output Current (A) (nom)

1

Budgetary Price (US$)* / Qty

0.568 / 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