3 A / 2.3 MHz step-down synchronous switching regulator based on the AST1S31HF in a DFN 3x3 package

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  • The STEVAL-ISA160V1 evaluation board is based on the AST1S31HF internally compensated 2.3 MHz fixed-frequency PWM synchronous step-down regulator.

    The device operates on a 2.8 V to 4.0 V input voltage and provides a regulated output voltage from as low as 0.8 V up to Vin.
    The peak current mode control with internal compensation delivers a very compact solution with a minimum component count.
    All the components on the evaluation board are automotive grade.

    Key Features

    • AECQ100 qualification
    • 3 A DC output current
    • 2.8 V to 4 V input voltage
    • Output voltage adjustable from 0.8 V
    • 2.3 MHz switching frequency
    • Internal soft-start and enable
    • Integrated 70 mΩ and 55 mΩ power MOSFETs
    • All ceramic capacitor
    • Power good (POR)
    • Cycle by cycle current limiting
    • Current fold back short circuit protection
    • VFDFPN 3x3 - 8L package
    • RoHS compliant

Sample & Buy

Part Number
Core Product
Marketing Status
Budgetary Price (US$)*
Quantity
ECCN (US)
Country of Origin
Board production status
Order from Distributors
Order from ST
STEVAL-ISA160V1 AST1S31HF
Active
15 1 EAR99 ITALY - Check Availability

Distributor availability ofSTEVAL-ISA160V1

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 3 1 Order Now
Farnell Element14 EUROPE 8 1 Order Now

Distributor reported inventory date: 2019-11-16

Distributor Name

DIGIKEY

Stock

3

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

8

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-11-16

STEVAL-ISA160V1

Core Product

AST1S31HF

Marketing Status

Active

Unit Price (US$)

15.0*

Distributor availability ofSTEVAL-ISA160V1

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 3 1 Order Now
Farnell Element14 EUROPE 8 1 Order Now

Distributor reported inventory date: 2019-11-16

Distributor Name

DIGIKEY

Stock

3

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

8

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-11-16

Unit Price (US$)

15

Quantity

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

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In-Vehicle Infotainment (IVI)

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00 Files selected for download

Technical Documentation

    • Description Version Size Action
      DB2858
      3 A / 2.3 MHz step-down synchronous switching regulator based on the AST1S31HF in a DFN 3x3 package
      1.0
      212.89 KB
      PDF
      DB2858

      3 A / 2.3 MHz step-down synchronous switching regulator based on the AST1S31HF in a DFN 3x3 package

Hardware Resources

    • Description Version Size Action
      STEVAL-ISA160V1 gerber files 1.0
      95.44 KB
      ZIP

      STEVAL-ISA160V1 gerber files

    • Description Version Size Action
      STEVAL-ISA160V1 BOM 1.0
      73.06 KB
      PDF

      STEVAL-ISA160V1 BOM

    • Description Version Size Action
      STEVAL-ISA160V1 schematic 1.0
      40.31 KB
      PDF

      STEVAL-ISA160V1 schematic

Publications and Collaterals

    • Description Version Size Action
      eDesignSuite-The smart way to design your application 1.0
      842.88 KB
      PDF

      eDesignSuite-The smart way to design your application

Legal

    • Description Version Size Action
      Evaluation products license agreement 1.6
      74.12 KB
      PDF

      Evaluation products license agreement

Part Number Marketing Status Package Grade RoHS Compliance Grade WEEE Compliant Material Declaration**
STEVAL-ISA160V1
Active
CARD Industrial Ecopack2 -

STEVAL-ISA160V1

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.