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  • Key Features

    • PWM LATCH FOR SINGLE PULSE PER PERIOD
    • UNDER VOLTAGE LOCK OUT WITH HYSTERETIC TURN-ON
    • SWITCHING FREQUENCY UP TO 200KHz
    • VERY HIGH EFFICIENCY
    • CONTINUOUS MODE OPERATION
    • THERMAL SHUTDOWN
    • RESET AND POWER FAIL FUNCTIONS
    • PRECISE 5.1V ± 2% ON CHIP REFERENCE
    • 2A OUTPUT CURRENT
    • 0 TO 90% DUTY CYCLE RANGE
    • 5.1V TO 40V OUTPUT VOLTAGE RANGE
    • INTERNAL CURRENT LIMITING
    • INPUT/OUTPUT SYNC PIN
    • INTERNAL FEED-FORWARD LINE REG.

Circuit Diagram

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Part Number
Package
Packing Type
Marketing Status
Budgetary Price (US$)*
Quantity
ECCN (US)
Country of Origin
Order from Distributors
Order from ST
L4972A PDIP 20 Tube
Active
2.033 10000 EAR99 MALAYSIA Check Availability

Distributor availability ofL4972A

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 499 1 Order Now
ARROW EUROPE 525 0 Order Now
MOUSER WORLDWIDE 472 1 Order Now
Farnell Element14 EUROPE 553 1 Order Now

Distributor reported inventory date: 2019-07-16

Distributor Name

DIGIKEY

Stock

499

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

525

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

472

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

553

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-07-16

Get sample
L4972AD SO-20 Tube
Active
2.033 10000 EAR99 MALAYSIA Check Availability

Distributor availability ofL4972AD

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 24 1 Order Now
RS COMPONENTS EUROPE 63 1 Order Now
ARROW EUROPE 360 0 Order Now
MOUSER WORLDWIDE 645 1 Order Now
Farnell Element14 EUROPE 130 1 Order Now

Distributor reported inventory date: 2019-07-16

Distributor Name

DIGIKEY

Stock

24

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

63

Min.Order

1

Region

EUROPE Order Now

ARROW

Stock

360

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

645

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

130

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-07-16

Buy now
L4972AD013TR SO-20 Tape And Reel
Active
2.033 10000 EAR99 MALAYSIA Check Availability

Distributor availability ofL4972AD013TR

Distributor Name
Region Stock Min. Order Third party link
FUTURE WORLDWIDE 1000 1000 Order Now
ARROW EUROPE 19000 0 Order Now
Farnell Element14 EUROPE 254 1 Order Now

Distributor reported inventory date: 2019-07-16

Distributor Name

FUTURE

Stock

1000

Min.Order

1000

Region

WORLDWIDE Order Now

ARROW

Stock

19000

Min.Order

0

Region

EUROPE Order Now

Farnell Element14

Stock

254

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-07-16

Get sample

L4972A

Package

PDIP 20

Packing Type

Tube

Unit Price (US$)

2.033*

Distributor availability ofL4972A

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 499 1 Order Now
ARROW EUROPE 525 0 Order Now
MOUSER WORLDWIDE 472 1 Order Now
Farnell Element14 EUROPE 553 1 Order Now

Distributor reported inventory date: 2019-07-16

Distributor Name

DIGIKEY

Stock

499

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

525

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

472

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

553

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-07-16

Marketing Status

Active

Unit Price (US$)

2.033

Quantity

10000

ECCN (US)

EAR99

Country of Origin

MALAYSIA

L4972AD

Package

SO-20

Packing Type

Tube

Unit Price (US$)

2.033*

Distributor availability ofL4972AD

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 24 1 Order Now
RS COMPONENTS EUROPE 63 1 Order Now
ARROW EUROPE 360 0 Order Now
MOUSER WORLDWIDE 645 1 Order Now
Farnell Element14 EUROPE 130 1 Order Now

Distributor reported inventory date: 2019-07-16

Distributor Name

DIGIKEY

Stock

24

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

63

Min.Order

1

Region

EUROPE Order Now

ARROW

Stock

360

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

645

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

130

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-07-16

Marketing Status

Active

Unit Price (US$)

2.033

Quantity

10000

ECCN (US)

EAR99

Country of Origin

MALAYSIA

L4972AD013TR

Package

SO-20

Packing Type

Tape And Reel

Unit Price (US$)

2.033*

Distributor availability ofL4972AD013TR

Distributor Name
Region Stock Min. Order Third party link
FUTURE WORLDWIDE 1000 1000 Order Now
ARROW EUROPE 19000 0 Order Now
Farnell Element14 EUROPE 254 1 Order Now

Distributor reported inventory date: 2019-07-16

Distributor Name

FUTURE

Stock

1000

Min.Order

1000

Region

WORLDWIDE Order Now

ARROW

Stock

19000

Min.Order

0

Region

EUROPE Order Now

Farnell Element14

Stock

254

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-07-16

Marketing Status

Active

Unit Price (US$)

2.033

Quantity

10000

ECCN (US)

EAR99

Country of Origin

MALAYSIA

(*) 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

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    • Description Version Size Action
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Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
L4972A
Active
PDIP 20 Industrial Ecopack1
L4972AD
Active
SO-20 Industrial Ecopack1 (*)
L4972AD013TR
Active
SO-20 Industrial Ecopack1 (*)

L4972A

Package:

PDIP 20

Material Declaration**:

Marketing Status

Active

Package

PDIP 20

Grade

Industrial

RoHS Compliance Grade

Ecopack1

L4972AD

Package:

SO-20

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SO-20

Grade

Industrial

RoHS Compliance Grade

Ecopack1 (*)

L4972AD013TR

Package:

SO-20

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SO-20

Grade

Industrial

RoHS Compliance Grade

Ecopack1 (*)

(**) 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.