STEVAL-ISA190V1

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38 V, 1.5 A synchronous step-down switching regulator evaluation board based on A6986F

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  • The STEVAL-ISA190V1 is a product evaluation board based on ST's synchronous step-down switching regulator A6986F.

    The device is capable of delivering up to 1.5 A and its 100% duty cycle capability to withstand the cold crank event along with its wide input operating voltage range make A6986F the ideal choice for battery powered automotive systems.
    Synchronous rectification improves efficiency at full load as well as application compactness, while high-frequency switching (programmable up to 2 MHz) lowers power passive costs and size while remaining outside of the AM band.
    The device can operate in low consumption mode (LCM) with quiescent current as low as 30 µA at VIN = 12 V and VOUT = 3.3 V, hence assuring high efficiency at light loads, as required in typical car body applications that remain active while the car is parked. A low noise mode (LNM) can alternatively be selected to meet the forced PWM mode requirement under all loading conditions for infotainment applications.
    The default evaluation board settings are 6 V output voltage configured in LCM, 500 kHz switching frequency, high level ISKIP current and the switchover feature disabled. These configurations can easily be changed by the user to evaluate different application scenarios.

    Key Features

    • AECQ100 qualification
    • 1.5 A DC output current
    • 4 V to 38 V operating input voltage
    • Low consumption mode or low noise mode
    • Programmable ISKIP current
    • 30 µA IQ at light load (LCM VIN = 12 V and VOUT = 3.3 V)
    • 8 μA IQ-SHTDWN
    • Adjustable fSW (250 kHz - 2 MHz)
    • Output voltage adjustable from 0.85 V to VIN
    • Embedded output voltage supervisor
    • Synchronization
    • Adjustable soft-start time
    • Internal current limiting
    • Overvoltage protection
    • Output voltage sequencing
    • Peak current mode architecture
    • RDS(on)HS = 180 mΩ; RDS(on)LS = 150 mΩ
    • Thermal shutdown
    • RoHS compliant

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Technical Documentation

    • Description Version Size Action
      DB2932
      38 V, 1.5 A synchronous step-down switching regulator evaluation board based on A6986F
      1.0
      300.54 KB
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      DB2932

      38 V, 1.5 A synchronous step-down switching regulator evaluation board based on A6986F

Hardware Resources

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      STEVAL-ISA190V1 gerber files 1.0
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      STEVAL-ISA190V1 gerber files

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      STEVAL-ISA190V1 BOM 1.0
      48.12 KB
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      STEVAL-ISA190V1 BOM

    • Description Version Size Action
      STEVAL-ISA190V1 schematic 1.0
      73.96 KB
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      STEVAL-ISA190V1 schematic

Publications and Collaterals

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

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      Terms of use 1.7
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      Terms of use

Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade WEEE Compliant Material Declaration**
STEVAL-ISA190V1
Active
CARD Industrial Ecopack2 -

STEVAL-ISA190V1

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

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Budgetary Price (US$)*/Qty
STEVAL-ISA190V1 Available at 2 distributors

Distributor availability ofSTEVAL-ISA190V1

Distributor Name
Region Stock Min. Order Third party link
MOUSER WORLDWIDE 3 1 Order Now
Farnell Element14 EUROPE 2 1 Order Now

Distributor reported inventory date: 2020-08-10

Distributor Name

MOUSER

Stock

3

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

2

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-08-10

Buy now A6986F
Active
ST EAR99 NEC ITALY - 26.0 / 1

STEVAL-ISA190V1

Core Product

A6986F

Marketing Status

Active

Budgetary Price (US$)*/Qty

26.0 / 1

Distributor availability ofSTEVAL-ISA190V1

Distributor Name
Region Stock Min. Order Third party link
MOUSER WORLDWIDE 3 1 Order Now
Farnell Element14 EUROPE 2 1 Order Now

Distributor reported inventory date: 2020-08-10

Distributor Name

MOUSER

Stock

3

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

2

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-08-10

Supplier

ST

ECCN (US)

EAR99

ECCN (EU)

NEC

Budgetary Price (US$)* / Qty

26.0 / 1

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