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  • Key Features

    • UNDER VOLTAGE LOCK OUT WITH HYSTERETIC TURN-ON
    • INPUT/OUTPUT SYNC PIN
    • VERY HIGH EFFICIENCY
    • PWM LATCH FOR SINGLE PULSE PER PERIOD
    • THERMAL SHUTDOWN
    • SWITCHING FREQUENCY UP TO 500KHz
    • CONTINUOUS MODE OPERATION
    • RESET AND POWER FAIL FUNCTIONS
    • PRECISE 5.1V ± 2% ON CHIP REFERENCE
    • 7A OUTPUT CURRENT
    • 0 TO 90% DUTY CYCLE RANGE
    • 5.1V TO 40V OUTPUT VOLTAGE RANGE
    • INTERNAL CURRENT LIMITING
    • SOFT START
    • INTERNAL FEED-FORWARD LINE REGULATION

Circuit Diagram

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Sample & Buy

Part Number
Package
Packing Type
Marketing Status
Budgetary Price (US$)*
Quantity
ECCN (US)
Country of Origin
Order from Distributors
Order from ST
L4977A MW 15L Tube
Active
7.094 10000 EAR99 MOROCCO Check Availability

Distributor availability ofL4977A

Distributor Name
Region Stock Min. Order Third party link
RS COMPONENTS EUROPE 417 1 Order Now
ARROW EUROPE 105 0 Order Now
MOUSER WORLDWIDE 387 1 Order Now

Distributor reported inventory date: 2019-07-22

Distributor Name

RS COMPONENTS

Stock

417

Min.Order

1

Region

EUROPE Order Now

ARROW

Stock

105

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

387

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2019-07-22

Buy now

L4977A

Package

MW 15L

Packing Type

Tube

Unit Price (US$)

7.094*

Distributor availability ofL4977A

Distributor Name
Region Stock Min. Order Third party link
RS COMPONENTS EUROPE 417 1 Order Now
ARROW EUROPE 105 0 Order Now
MOUSER WORLDWIDE 387 1 Order Now

Distributor reported inventory date: 2019-07-22

Distributor Name

RS COMPONENTS

Stock

417

Min.Order

1

Region

EUROPE Order Now

ARROW

Stock

105

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

387

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2019-07-22

Marketing Status

Active

Unit Price (US$)

7.094

Quantity

10000

ECCN (US)

EAR99

Country of Origin

MOROCCO

(*) 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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      PDF
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      Switching Converters (DC-DC) – Quick Reference Guide

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
L4977A
Active
MW 15L Industrial Ecopack1

L4977A

Package:

MW 15L

Material Declaration**:

Marketing Status

Active

Package

MW 15L

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.