L4941

Active

Very low drop 1A regulator

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Overview
Online design
Sample & Buy
Solutions
Documentation
CAD Resources
Tools & Software
Quality & Reliability
Partner products
Sales Briefcase

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

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Related Applications

Industrial

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

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Footprints

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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

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 5 distributors

Distributor availability ofL4941BV

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1210 1 Order Now
RS COMPONENTS EUROPE 504 1 Order Now
AVNET AMERICA 500 0 Order Now
Farnell Element14 EUROPE 153 1 Order Now
ANGLIA Live EUROPE 840 1 Order Now

Distributor reported inventory date: 2021-07-26

Distributor Name

DIGIKEY

Stock

1210

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

504

Min.Order

1

Region

EUROPE Order Now

AVNET

Stock

500

Min.Order

0

Region

AMERICA Order Now

Farnell Element14

Stock

153

Min.Order

1

Region

EUROPE Order Now

ANGLIA Live

Stock

840

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-07-26

Active
EAR99 NEC Tube TO-220 -40 150 5 0.4669 / 1k
MORE INFO

Output Tolerance (typ):

4

Output Current (A) (nom):

1

Unit Price (US$):

0.4669

Country of Origin:

CHINA

L4941BDT-TR Available at 4 distributors

Distributor availability ofL4941BDT-TR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 325 1 Order Now
RS COMPONENTS EUROPE 4910 5 Order Now
FUTURE WORLDWIDE 1487 1 Order Now
Farnell Element14 EUROPE 120 1 Order Now

Distributor reported inventory date: 2021-07-26

Distributor Name

DIGIKEY

Stock

325

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

4910

Min.Order

5

Region

EUROPE Order Now

FUTURE

Stock

1487

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

120

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-07-26

Buy Direct
Active
EAR99 NEC Tape And Reel DPAK -40 150 5 0.6532 / 1k
MORE INFO

Output Tolerance (typ):

4

Output Current (A) (nom):

1

Unit Price (US$):

0.6532

Country of Origin:

CHINA

L4941BV

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.4669 / 1k

Distributor availability ofL4941BV

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1210 1 Order Now
RS COMPONENTS EUROPE 504 1 Order Now
AVNET AMERICA 500 0 Order Now
Farnell Element14 EUROPE 153 1 Order Now
ANGLIA Live EUROPE 840 1 Order Now

Distributor reported inventory date: 2021-07-26

Distributor Name

DIGIKEY

Stock

1210

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

504

Min.Order

1

Region

EUROPE Order Now

AVNET

Stock

500

Min.Order

0

Region

AMERICA Order Now

Farnell Element14

Stock

153

Min.Order

1

Region

EUROPE Order Now

ANGLIA Live

Stock

840

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-07-26

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

0.4669 / 1k

Country of Origin

CHINA

L4941BDT-TR

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.6532 / 1k

Distributor availability ofL4941BDT-TR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 325 1 Order Now
RS COMPONENTS EUROPE 4910 5 Order Now
FUTURE WORLDWIDE 1487 1 Order Now
Farnell Element14 EUROPE 120 1 Order Now

Distributor reported inventory date: 2021-07-26

Distributor Name

DIGIKEY

Stock

325

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

4910

Min.Order

5

Region

EUROPE Order Now

FUTURE

Stock

1487

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

120

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2021-07-26

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

0.6532 / 1k

Country of Origin

CHINA

(*) 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