38 V, 2 A synchronous step-down switching regulator evaluation board based on the A6986H

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  • The STEVAL-ISA205V1 product evaluation board is based on the synchronous step-down switching regulator A6986H that can deliver up to 2 A and withstand cold cranking across 100% duty cycle, which, along with its wide input operating voltage range, render the A6986H the ideal choice for battery powered automotive systems.

    Synchronous rectification helps to achieve higher efficiency at full load as well as application compactness, while high-frequency switching (programmable up to 2 MHz) helps to cut power passive costs and size, while staying outside of the AM band.
    The device can operate in a Low Consumption Mode (LCM) with a quiescent current down to 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 are active during car parking.
    A Low Noise Mode (LNM) is also available to meet the requirements of infotainment applications of forced PWM mode in all loading conditions.
    The default configuration of the board is output voltage set to 3.3 V configured in LCM, 500 kHz switching frequency, ISKIP current set to high level and the switchover feature disabled. All of these settings can be easily changed by the user to evaluate different application scenarios.

    Key Features

    • AECQ100 qualification
    • 2 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 (in all fSW range)
    • Adjustable soft-start time
    • Internal current limiting
    • Overvoltage protection
    • Peak current mode architecture
    • RDS(on)HS = 180 mΩ; RDS(on)LS = 150 mΩ
    • Thermal shutdown
    • RoHS and WEEE compliant

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Part Number
Marketing Status
Budgetary Price (US$)*
Quantity
ECCN (US)
Country of Origin
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STEVAL-ISA205V1
Active
33.8 1 EAR99 ITALY Check Availability

Distributor availability ofSTEVAL-ISA205V1

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 5 1 Order Now
AVNET AMERICA 3 0 Order Now
MOUSER WORLDWIDE 4 1 Order Now
Farnell Element14 EUROPE 6 1 Order Now

Distributor reported inventory date: 2019-09-22

Distributor Name

DIGIKEY

Stock

5

Min.Order

1

Region

WORLDWIDE Order Now

AVNET

Stock

3

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

4

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

6

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-09-22

Buy now

STEVAL-ISA205V1

Marketing Status

Active

Unit Price (US$)

33.8

Unit Price (US$)

33.8*

Distributor availability ofSTEVAL-ISA205V1

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 5 1 Order Now
AVNET AMERICA 3 0 Order Now
MOUSER WORLDWIDE 4 1 Order Now
Farnell Element14 EUROPE 6 1 Order Now

Distributor reported inventory date: 2019-09-22

Distributor Name

DIGIKEY

Stock

5

Min.Order

1

Region

WORLDWIDE Order Now

AVNET

Stock

3

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

4

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

6

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-09-22

Quantity

1

ECCN (US)

EAR99

Country of Origin

ITALY

(*) 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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00 Files selected for download

Technical Documentation

    • Description Version Size Action
      DB3889
      38 V, 2 A synchronous step-down switching regulator evaluation board based on A6986H
      1.0
      1.03 MB
      PDF
      DB3889

      38 V, 2 A synchronous step-down switching regulator evaluation board based on A6986H

Hardware Resources

    • Description Version Size Action
      STEVAL-ISA205V1 GERBER 1.0
      189.53 KB
      ZIP

      STEVAL-ISA205V1 GERBER

    • Description Version Size Action
      STEVAL-ISA205V1 BOM 1.0
      39.36 KB
      PDF

      STEVAL-ISA205V1 BOM

    • Description Version Size Action
      STEVAL-ISA205V1 SCHEMATIC 1.0
      117.95 KB
      PDF

      STEVAL-ISA205V1 SCHEMATIC

Legal

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

      Evaluation products license agreement

Part Number Marketing Status RoHS Compliance Grade WEEE Compliant Material Declaration**
STEVAL-ISA205V1
Active
Ecopack2 Yes

STEVAL-ISA205V1

Package:

Ecopack2

Material Declaration**:

Marketing Status

Active

RoHS Compliance Grade

Ecopack2

WEEE Compliant

Yes

(**) 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.