L4941

Active
Design Win

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

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.

Symbols

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

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 2 distributors

Distributor availability ofL4941BV

Distributor Name
Region Stock Min. Order Third party link
RS COMPONENTS EUROPE 72 1 Buy from Distributor
Farnell Element14 EUROPE 184 1 Buy from Distributor

Distributor reported inventory date: 2022-01-26

Distributor Name

RS COMPONENTS

Stock

72

Min.Order

1

Farnell Element14

Stock

184

Min.Order

1

Distributor reported inventory date: 2022-01-26

Active
EAR99 NEC Tube TO-220 -40 150 5 0.5705 / 1k
MORE INFO

Output Tolerance (typ):

4

Output Current (A) (nom):

1

Unit Price (US$):

0.5705

Country of Origin:

CHINA

L4941BDT-TR Available at 6 distributors

Distributor availability ofL4941BDT-TR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 17 1 Buy from Distributor
COMPEL EUROPE 2222 1 Buy from Distributor
RS COMPONENTS EUROPE 1935 5 Buy from Distributor
FUTURE WORLDWIDE 10000 2500 Buy from Distributor
MOUSER WORLDWIDE 2789 1 Buy from Distributor
Farnell Element14 EUROPE 957 1 Buy from Distributor

Distributor reported inventory date: 2022-01-26

Distributor Name

DIGIKEY

Stock

17

Min.Order

1

Region

WORLDWIDE Buy from Distributor

COMPEL

Stock

2222

Min.Order

1

RS COMPONENTS

Stock

1935

Min.Order

5

FUTURE

Stock

10000

Min.Order

2500

Region

WORLDWIDE Buy from Distributor

MOUSER

Stock

2789

Min.Order

1

Region

WORLDWIDE Buy from Distributor

Farnell Element14

Stock

957

Min.Order

1

Distributor reported inventory date: 2022-01-26

Buy Direct
Active
EAR99 NEC Tape And Reel DPAK -40 150 5 0.5705 / 1k
MORE INFO

Output Tolerance (typ):

4

Output Current (A) (nom):

1

Unit Price (US$):

0.5705

Country of Origin:

CHINA

L4941BV

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.5705 / 1k

Distributor availability ofL4941BV

Distributor Name
Region Stock Min. Order Third party link
RS COMPONENTS EUROPE 72 1 Buy from Distributor
Farnell Element14 EUROPE 184 1 Buy from Distributor

Distributor reported inventory date: 2022-01-26

Distributor Name

RS COMPONENTS

Stock

72

Min.Order

1

Farnell Element14

Stock

184

Min.Order

1

Distributor reported inventory date: 2022-01-26

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

0.5705 / 1k

Country of Origin

CHINA

L4941BDT-TR

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.5705 / 1k

Distributor availability ofL4941BDT-TR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 17 1 Buy from Distributor
COMPEL EUROPE 2222 1 Buy from Distributor
RS COMPONENTS EUROPE 1935 5 Buy from Distributor
FUTURE WORLDWIDE 10000 2500 Buy from Distributor
MOUSER WORLDWIDE 2789 1 Buy from Distributor
Farnell Element14 EUROPE 957 1 Buy from Distributor

Distributor reported inventory date: 2022-01-26

Distributor Name

DIGIKEY

Stock

17

Min.Order

1

Region

WORLDWIDE Buy from Distributor

COMPEL

Stock

2222

Min.Order

1

RS COMPONENTS

Stock

1935

Min.Order

5

FUTURE

Stock

10000

Min.Order

2500

Region

WORLDWIDE Buy from Distributor

MOUSER

Stock

2789

Min.Order

1

Region

WORLDWIDE Buy from Distributor

Farnell Element14

Stock

957

Min.Order

1

Distributor reported inventory date: 2022-01-26

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

0.5705 / 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