STEVAL-ISA093V1

Active

3 A step-down switching power supply demonstration board based on the L7981 (QFN)

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  • The STEVAL-ISA093V1 is a step-down switching power supply based on STMicroelectronics’ L7981 switching regulator in a QFN package.

    The L7981 features an embedded power MOSFET and is capable of delivering up to 3 A of current to the load, depending on the application conditions.
    The input voltage can range from 4.5 V to 28 V, while the output voltage can be set from 0.6 V to VIN.
    Requiring a minimum number of external components, the device includes an internal 250 kHz switching frequency oscillator that can be externally adjusted up to 1 MHz.

    Key Features

    • 3 A DC output current
    • 4.5 V to 28 V input voltage
    • Output voltage adjustable from 0.6 V
    • 250 kHz switching frequency, programmable up to 1 MHz
    • Internal soft-start and enable
    • Low dropout operation: 100% duty cycle
    • Voltage feed-forward
    • Zero load current operation
    • Overcurrent and thermal protection
    • RoHS compliant

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Technical Documentation

    • Description Version Size Action
      DB1504
      3 A step-down switching power supply demonstration board based on the L7981 (QFN)
      1.1
      98.67 KB
      PDF
      DB1504

      3 A step-down switching power supply demonstration board based on the L7981 (QFN)

Hardware Resources

    • Description Version Size Action
      STEVAL-ISA093V1 gerber files 2.1
      30.98 KB
      ZIP

      STEVAL-ISA093V1 gerber files

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      STEVAL-ISA093V1 BOM 2.1
      8.16 KB
      PDF

      STEVAL-ISA093V1 BOM

    • Description Version Size Action
      STEVAL-ISA093V1 schematics 1.0
      38.12 KB
      PDF

      STEVAL-ISA093V1 schematics

Publications and Collaterals

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      eDesignSuite-The smart way to design your application 1.0
      842.88 KB
      PDF

      eDesignSuite-The smart way to design your application

Legal

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      Terms of use 1.7
      57.54 KB
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      Terms of use

Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade WEEE Compliant Material Declaration**
STEVAL-ISA093V1
Active
CARD Industrial Ecopack2 -

STEVAL-ISA093V1

Package:

CARD

Material Declaration**:

Marketing Status

Active

Package

CARD

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

Part Number
Order from Distributors
Order from ST
Core Product
Marketing Status
ECCN (US)
Country of Origin
Board production status
Budgetary Price (US$)*/Qty
STEVAL-ISA093V1 Available at 3 distributors

Distributor availability ofSTEVAL-ISA093V1

Distributor Name
Region Stock Min. Order Third party link
P&S ASIA/PACIFIC 1 1 Order Now
MOUSER WORLDWIDE 2 1 Order Now
Farnell Element14 EUROPE 6 1 Order Now

Distributor reported inventory date: 2020-07-12

Distributor Name

P&S

Stock

1

Min.Order

1

Region

ASIA/PACIFIC Order Now

MOUSER

Stock

2

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

6

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-07-12

Buy now L7981
Active
EAR99 ITALY - 33.0 / 1

STEVAL-ISA093V1

Core Product

L7981

Marketing Status

Active

Budgetary Price (US$)*/Qty

33.0 / 1

Distributor availability ofSTEVAL-ISA093V1

Distributor Name
Region Stock Min. Order Third party link
P&S ASIA/PACIFIC 1 1 Order Now
MOUSER WORLDWIDE 2 1 Order Now
Farnell Element14 EUROPE 6 1 Order Now

Distributor reported inventory date: 2020-07-12

Distributor Name

P&S

Stock

1

Min.Order

1

Region

ASIA/PACIFIC Order Now

MOUSER

Stock

2

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

6

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-07-12

Budgetary Price (US$)* / Qty

33.0 / 1

ECCN (US)

EAR99

Country of Origin

ITALY

Board production status

-

(*) 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