L4941

Active
Design Win

Very low drop 1A regulator

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Product overview

Description

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.
  • All features

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

Circuit Diagram

EDA Symbols, Footprints and 3D Models

STMicroelectronics - L4941

Speed up your design by downloading all the EDA symbols, footprints and 3D models for your application. You have access to a large number of CAD formats to fit with your design toolchain.

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Symbols

Footprints

Footprints

3D model

3D models

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

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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
L4941BV Available at 2 distributors

Distributor availability ofL4941BV

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 5918 1 Buy from Distributor
RS COMPONENTS EUROPE 4736 1 Buy from Distributor

Distributor reported inventory date: 2022-07-15

Distributor Name

DIGIKEY

Stock

5918

Min.Order

1

Region

WORLDWIDE Buy from Distributor

RS COMPONENTS

Stock

4736

Min.Order

1

Distributor reported inventory date: 2022-07-15

Active
EAR99 NEC Tube TO-220 -40 150 5

4

1

0.599

CHINA

L4941BDT-TR Available at 2 distributors

Distributor availability ofL4941BDT-TR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2220 1 Buy from Distributor
RS COMPONENTS EUROPE 390 5 Buy from Distributor

Distributor reported inventory date: 2022-07-15

Distributor Name

DIGIKEY

Stock

2220

Min.Order

1

Region

WORLDWIDE Buy from Distributor

RS COMPONENTS

Stock

390

Min.Order

5

Distributor reported inventory date: 2022-07-15

Active
EAR99 NEC Tape and Reel DPAK -40 150 5

4

1

0.599

CHINA

L4941BV Active

Package:
TO-220
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

Part Number:

L4941BV

ECCN (EU):

NEC

Packing Type:

Tube

Operating Temperature (°C)

Min:

-40

Max:

150

Output Voltage (V) (nom):

5

Output Tolerance (typ):

4

Output Current (A) (nom):

1

Country of Origin:

CHINA

Distributor availability ofL4941BV

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 5918 1 Buy from Distributor
RS COMPONENTS EUROPE 4736 1 Buy from Distributor

Distributor reported inventory date: 2022-07-15

Distributor Name

DIGIKEY

Stock

5918

Min.Order

1

Region

WORLDWIDE Buy from Distributor

RS COMPONENTS

Stock

4736

Min.Order

1

Distributor reported inventory date: 2022-07-15

L4941BDT-TR Active

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

Part Number:

L4941BDT-TR

ECCN (EU):

NEC

Packing Type:

Tape and Reel

Operating Temperature (°C)

Min:

-40

Max:

150

Output Voltage (V) (nom):

5

Output Tolerance (typ):

4

Output Current (A) (nom):

1

Country of Origin:

CHINA

Distributor availability ofL4941BDT-TR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2220 1 Buy from Distributor
RS COMPONENTS EUROPE 390 5 Buy from Distributor

Distributor reported inventory date: 2022-07-15

Distributor Name

DIGIKEY

Stock

2220

Min.Order

1

Region

WORLDWIDE Buy from Distributor

RS COMPONENTS

Stock

390

Min.Order

5

Distributor reported inventory date: 2022-07-15

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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