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  • The L4963 is a monolithic power switching regulator delivering 1.5A at 5.1V. The output voltage is adjustable from 5.1V to 36V, working in discontinuous variable frequency mode. Features of the device include remote inhibit, internal current limiting and thermal protection, reset and power fail outputs for microprocessor.

    The L4963 is mounted in a 12+3+3 lead Powerdip (L4963) and SO20 large (L4963D) plastic packages and requires very few external components.

    Key Features

    • NO FREQ. COMPENSATION REQUIRED
    • VERY FEW EXTERNAL COMPONENTS
    • THERMAL SHUTDOWN
    • 1.5A OUTPUT LOAD CURRENT
    • DISCONTINUOUS VARIABLE FREQUENCY MODE
    • 5.1 TO 36V OUTPUT VOLTAGE RANGE
    • VERY HIGH EFFICIENCY
    • RESET AND POWER FAIL OUTPUT FOR MICROPROCESSOR
    • PRECISE (+/–2%) ON CHIP REFERENCE

Circuit Diagram

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STMicroelectronics - L4963

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Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
L4963D
Active
SO-20 Industrial Ecopack1 (*)
L4963D013TR
Active
SO-20 Industrial Ecopack1 (*)
L4963W
NRND
PDIP 18 Industrial Ecopack1

L4963D

Package:

SO-20

Material Declaration**:

Marketing Status

Active

Package

SO-20

Grade

Industrial

RoHS Compliance Grade

Ecopack1 (*)

L4963D013TR

Package:

SO-20

Material Declaration**:

Marketing Status

Active

Package

SO-20

Grade

Industrial

RoHS Compliance Grade

Ecopack1 (*)

L4963W

Package:

PDIP 18

Material Declaration**:

Marketing Status

NRND

Package

PDIP 18

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.

Sample & Buy

Part Number
Order from Distributors
Order from ST
Marketing Status
ECCN (US)
ECCN (EU)
Packing Type
Package
Temperature (°C) Country of Origin
Budgetary Price (US$)*/Qty
min
max
L4963D Available at 2 distributors

Distributor availability ofL4963D

Distributor Name
Region Stock Min. Order Third party link
RS COMPONENTS EUROPE 167 1 Order Now
ARROW EUROPE 19 0 Order Now

Distributor reported inventory date: 2020-10-27

Distributor Name

RS COMPONENTS

Stock

167

Min.Order

1

Region

EUROPE Order Now

ARROW

Stock

19

Min.Order

0

Region

EUROPE Order Now

Distributor reported inventory date: 2020-10-27

Active
EAR99 NEC Tube SO-20 - - MALAYSIA 1.744 / 1k
L4963D013TR Available at 1 distributors

Distributor availability ofL4963D013TR

Distributor Name
Region Stock Min. Order Third party link
MOUSER WORLDWIDE 260 1 Order Now

Distributor reported inventory date: 2020-10-27

Distributor Name

MOUSER

Stock

260

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-10-27

Free Sample Buy Direct
Active
EAR99 NEC Tape And Reel SO-20 - - MALAYSIA 1.744 / 1k
L4963W Available at 2 distributors

Distributor availability ofL4963W

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 82 1 Order Now
Farnell Element14 EUROPE 942 1 Order Now

Distributor reported inventory date: 2020-10-27

Distributor Name

DIGIKEY

Stock

82

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

942

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-10-27

NRND
EAR99 NEC Tube PDIP 18 - - MALAYSIA 1.861 / 1k

L4963D

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

1.744 / 1k

Distributor availability ofL4963D

Distributor Name
Region Stock Min. Order Third party link
RS COMPONENTS EUROPE 167 1 Order Now
ARROW EUROPE 19 0 Order Now

Distributor reported inventory date: 2020-10-27

Distributor Name

RS COMPONENTS

Stock

167

Min.Order

1

Region

EUROPE Order Now

ARROW

Stock

19

Min.Order

0

Region

EUROPE Order Now

Distributor reported inventory date: 2020-10-27

ECCN (EU)

NEC

Packing Type

Tube

Package

SO-20

Operating Temperature (°C)

(min)

-

(max)

-

Budgetary Price (US$)* / Qty

1.744 / 1k

Country of Origin

MALAYSIA

L4963D013TR

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

1.744 / 1k

Distributor availability ofL4963D013TR

Distributor Name
Region Stock Min. Order Third party link
MOUSER WORLDWIDE 260 1 Order Now

Distributor reported inventory date: 2020-10-27

Distributor Name

MOUSER

Stock

260

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-10-27

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

SO-20

Operating Temperature (°C)

(min)

-

(max)

-

Budgetary Price (US$)* / Qty

1.744 / 1k

Country of Origin

MALAYSIA

L4963W

Marketing Status

NRND

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

1.861 / 1k

Distributor availability ofL4963W

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 82 1 Order Now
Farnell Element14 EUROPE 942 1 Order Now

Distributor reported inventory date: 2020-10-27

Distributor Name

DIGIKEY

Stock

82

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

942

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-10-27

ECCN (EU)

NEC

Packing Type

Tube

Package

PDIP 18

Operating Temperature (°C)

(min)

-

(max)

-

Budgetary Price (US$)* / Qty

1.861 / 1k

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