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L4940

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1.5 A very low drop voltage regulator IC

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Product overview

Description

The L4940 series of three-terminal positive regulators is available in TO-220 and D²PAK packages and with several fixed output voltages, making it useful in a wide range of industrial and consumer applications. Thanks to their very low input/output voltage drop, these devices are particularly suitable for battery-powered equipment, reducing consumption and prolonging battery-life. Each type employs internal current limiting, anti-saturation circuit, thermal shutdown and safe area protection.

  • All features

    • Precise 5, 8.5, 12 V outputs
    • Low dropout voltage (450 mV typ. at 1 A)
    • Very low quiescent current
    • Thermal shutdown
    • Short-circuit protection
    • Reverse polarity protection
    Read more Read less

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STMicroelectronics - L4940

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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**
L4940D2T12-TR
Active
D2PAK Industrial Ecopack2
L4940D2T5-TR
Active
D2PAK Industrial Ecopack2
L4940V5
Active
TO-220 Industrial Ecopack2
L4940V85
Active
TO-220 Industrial Ecopack2

L4940D2T12-TR

Package:

D2PAK

Material Declaration**:

More Info

Marketing Status

Active

Package

D2PAK

Grade

Industrial

RoHS Compliance Grade

Ecopack2

L4940D2T5-TR

Package:

D2PAK

Material Declaration**:

More Info

Marketing Status

Active

Package

D2PAK

Grade

Industrial

RoHS Compliance Grade

Ecopack2

L4940V5

Package:

TO-220

Material Declaration**:

PDF XML
More Info

Marketing Status

Active

Package

TO-220

Grade

Industrial

RoHS Compliance Grade

Ecopack2

L4940V85

Package:

TO-220

Material Declaration**:

More Info

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

L4940V5

Marketing Status

Active

ECCN (US)

EAR99
More Info

Budgetary Price (US$)*/Qty

Distributor availability ofL4940V5

Distributor Name
Region Stock Min. Order Third party link
COMPEL EUROPE 215 1 Buy from Distributor
RS COMPONENTS EUROPE 839 1 Buy from Distributor
ANGLIA Live EUROPE 1899 1 Buy from Distributor

Distributor reported inventory date: 2022-05-23

Distributor Name

COMPEL

Stock

215

Min.Order

1

Region

EUROPE Buy from Distributor

RS COMPONENTS

Stock

839

Min.Order

1

Region

EUROPE Buy from Distributor

ANGLIA Live

Stock

1899

Min.Order

1

Region

EUROPE Buy from Distributor

Distributor reported inventory date: 2022-05-23

ECCN (EU)

NEC

Packing Type

Tube

Package

TO-220

Operating Temperature (°C)

(min)

-40

(max)

150

Output Voltage (V) (nom)

5

Output Tolerance (typ)

2

Output Current (A) (nom)

1.5

Budgetary Price (US$)* / Qty

Country of Origin

CHINA

L4940D2T12-TR

Marketing Status

Active

ECCN (US)

EAR99
More Info

Budgetary Price (US$)*/Qty

Distributor availability ofL4940D2T12-TR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2363 1 Buy from Distributor
FUTURE WORLDWIDE 5000 1000 Buy from Distributor
Newark Element14 AMERICA 1 0 Buy from Distributor
Farnell Element14 EUROPE 957 1 Buy from Distributor

Distributor reported inventory date: 2022-05-23

Distributor Name

DIGIKEY

Stock

2363

Min.Order

1

Region

WORLDWIDE Buy from Distributor

FUTURE

Stock

5000

Min.Order

1000

Region

WORLDWIDE Buy from Distributor

Newark Element14

Stock

1

Min.Order

0

Region

AMERICA Buy from Distributor

Farnell Element14

Stock

957

Min.Order

1

Region

EUROPE Buy from Distributor

Distributor reported inventory date: 2022-05-23

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

D2PAK

Operating Temperature (°C)

(min)

-40

(max)

150

Output Voltage (V) (nom)

12

Output Tolerance (typ)

2

Output Current (A) (nom)

1.5

Budgetary Price (US$)* / Qty

Country of Origin

CHINA

L4940D2T5-TR

Marketing Status

Active

ECCN (US)

EAR99
More Info

Budgetary Price (US$)*/Qty

Distributor availability ofL4940D2T5-TR

Distributor Name
Region Stock Min. Order Third party link
RS COMPONENTS EUROPE 2030 5 Buy from Distributor
FUTURE WORLDWIDE 165 1 Buy from Distributor

Distributor reported inventory date: 2022-05-23

Distributor Name

RS COMPONENTS

Stock

2030

Min.Order

5

Region

EUROPE Buy from Distributor

FUTURE

Stock

165

Min.Order

1

Region

WORLDWIDE Buy from Distributor

Distributor reported inventory date: 2022-05-23

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

D2PAK

Operating Temperature (°C)

(min)

-40

(max)

150

Output Voltage (V) (nom)

5

Output Tolerance (typ)

2

Output Current (A) (nom)

1.5

Budgetary Price (US$)* / Qty

Country of Origin

CHINA

L4940V85

Marketing Status

Active

ECCN (US)

EAR99
More Info

Budgetary Price (US$)*/Qty

Distributor availability ofL4940V85

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1760 1 Buy from Distributor
RS COMPONENTS EUROPE 985 5 Buy from Distributor
MOUSER WORLDWIDE 993 1 Buy from Distributor

Distributor reported inventory date: 2022-05-23

Distributor Name

DIGIKEY

Stock

1760

Min.Order

1

Region

WORLDWIDE Buy from Distributor

RS COMPONENTS

Stock

985

Min.Order

5

Region

EUROPE Buy from Distributor

MOUSER

Stock

993

Min.Order

1

Region

WORLDWIDE Buy from Distributor

Distributor reported inventory date: 2022-05-23

ECCN (EU)

NEC

Packing Type

Tube

Package

TO-220

Operating Temperature (°C)

(min)

-40

(max)

150

Output Voltage (V) (nom)

8.5

Output Tolerance (typ)

2

Output Current (A) (nom)

1.5

Budgetary Price (US$)* / Qty

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

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