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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
    • 3.5A 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
L4974A PDIP 20 Tube
Active
5.108 10000 EAR99 MALAYSIA Check Availability

Distributor availability ofL4974A

Distributor Name
Region Stock Min. Order Third party link
RS COMPONENTS EUROPE 239 1 Order Now
ARROW EUROPE 60 0 Order Now
MOUSER WORLDWIDE 483 1 Order Now
Farnell Element14 EUROPE 225 1 Order Now
ANGLIA Live EUROPE 10 1 Order Now
RUTRONIK EUROPE 680 20 Order Now

Distributor reported inventory date: 2019-07-22

Distributor Name

RS COMPONENTS

Stock

239

Min.Order

1

Region

EUROPE Order Now

ARROW

Stock

60

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

483

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

225

Min.Order

1

Region

EUROPE Order Now

ANGLIA Live

Stock

10

Min.Order

1

Region

EUROPE Order Now

RUTRONIK

Stock

680

Min.Order

20

Region

EUROPE Order Now

Distributor reported inventory date: 2019-07-22

Get sample

L4974A

Package

PDIP 20

Packing Type

Tube

Unit Price (US$)

5.108*

Distributor availability ofL4974A

Distributor Name
Region Stock Min. Order Third party link
RS COMPONENTS EUROPE 239 1 Order Now
ARROW EUROPE 60 0 Order Now
MOUSER WORLDWIDE 483 1 Order Now
Farnell Element14 EUROPE 225 1 Order Now
ANGLIA Live EUROPE 10 1 Order Now
RUTRONIK EUROPE 680 20 Order Now

Distributor reported inventory date: 2019-07-22

Distributor Name

RS COMPONENTS

Stock

239

Min.Order

1

Region

EUROPE Order Now

ARROW

Stock

60

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

483

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

225

Min.Order

1

Region

EUROPE Order Now

ANGLIA Live

Stock

10

Min.Order

1

Region

EUROPE Order Now

RUTRONIK

Stock

680

Min.Order

20

Region

EUROPE Order Now

Distributor reported inventory date: 2019-07-22

Marketing Status

Active

Unit Price (US$)

5.108

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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Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
L4974A
Active
PDIP 20 Industrial Ecopack1

L4974A

Package:

PDIP 20

Material Declaration**:

Marketing Status

Active

Package

PDIP 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.