L4941

Active

Very low drop 1A regulator

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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 8 distributors

Distributor availability ofL4941BV

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 5544 1 Order Now
RS COMPONENTS EUROPE 599 1 Order Now
AVNET AMERICA 11 0 Order Now
ARROW EUROPE 4647 0 Order Now
ARROW AMERICA 196 1000 Order Now
MOUSER WORLDWIDE 2956 1 Order Now
Farnell Element14 EUROPE 596 1 Order Now
ANGLIA Live EUROPE 1140 1 Order Now

Distributor reported inventory date: 2021-01-20

Distributor Name

DIGIKEY

Stock

5544

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

599

Min.Order

1

Region

EUROPE Order Now

AVNET

Stock

11

Min.Order

0

Region

AMERICA Order Now

ARROW

Stock

4647

Min.Order

0

Region

EUROPE Order Now

ARROW

Stock

196

Min.Order

1000

Region

AMERICA Order Now

MOUSER

Stock

2956

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

596

Min.Order

1

Region

EUROPE Order Now

ANGLIA Live

Stock

1140

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-01-20

Buy Direct
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 7 distributors

Distributor availability ofL4941BDT-TR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2625 1 Order Now
COMPEL EUROPE 2345 1 Order Now
RS COMPONENTS EUROPE 9995 5 Order Now
FUTURE WORLDWIDE 1487 1 Order Now
ARROW AMERICA 35000 2500 Order Now
MOUSER WORLDWIDE 4263 1 Order Now
Farnell Element14 EUROPE 2815 1 Order Now

Distributor reported inventory date: 2021-01-20

Distributor Name

DIGIKEY

Stock

2625

Min.Order

1

Region

WORLDWIDE Order Now

COMPEL

Stock

2345

Min.Order

1

Region

EUROPE Order Now

RS COMPONENTS

Stock

9995

Min.Order

5

Region

EUROPE Order Now

FUTURE

Stock

1487

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

35000

Min.Order

2500

Region

AMERICA Order Now

MOUSER

Stock

4263

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

2815

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-01-20

Buy Direct
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 5544 1 Order Now
RS COMPONENTS EUROPE 599 1 Order Now
AVNET AMERICA 11 0 Order Now
ARROW EUROPE 4647 0 Order Now
ARROW AMERICA 196 1000 Order Now
MOUSER WORLDWIDE 2956 1 Order Now
Farnell Element14 EUROPE 596 1 Order Now
ANGLIA Live EUROPE 1140 1 Order Now

Distributor reported inventory date: 2021-01-20

Distributor Name

DIGIKEY

Stock

5544

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

599

Min.Order

1

Region

EUROPE Order Now

AVNET

Stock

11

Min.Order

0

Region

AMERICA Order Now

ARROW

Stock

4647

Min.Order

0

Region

EUROPE Order Now

ARROW

Stock

196

Min.Order

1000

Region

AMERICA Order Now

MOUSER

Stock

2956

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

596

Min.Order

1

Region

EUROPE Order Now

ANGLIA Live

Stock

1140

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-01-20

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 2625 1 Order Now
COMPEL EUROPE 2345 1 Order Now
RS COMPONENTS EUROPE 9995 5 Order Now
FUTURE WORLDWIDE 1487 1 Order Now
ARROW AMERICA 35000 2500 Order Now
MOUSER WORLDWIDE 4263 1 Order Now
Farnell Element14 EUROPE 2815 1 Order Now

Distributor reported inventory date: 2021-01-20

Distributor Name

DIGIKEY

Stock

2625

Min.Order

1

Region

WORLDWIDE Order Now

COMPEL

Stock

2345

Min.Order

1

Region

EUROPE Order Now

RS COMPONENTS

Stock

9995

Min.Order

5

Region

EUROPE Order Now

FUTURE

Stock

1487

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

35000

Min.Order

2500

Region

AMERICA Order Now

MOUSER

Stock

4263

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

2815

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-01-20

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