3 A step down DC/DC switching regulator (VIN = 4.5 V to 60 V) based on the A7987

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  • The STEVAL-ISA207V1 evaluation board is a step-down switching power supply based on the A7987 regulator in an HTSSOP16 package. It is designed for automotive system battery-powered applications. The output voltage can be set starting from 0.8 V. Almost low drop-out operation, due to the advanced integrated switch management, can be achieved.

    The A7987 is a 61 V, 3 A step-down asynchronous switching regulator with embedded high-side power MOSFET is capable of delivering up to 3 A of current, depending on the application conditions.
    The embedded switchover feature on the VBIAS pin and the light load management (pulse skipping) are included to maximize power conversion efficiency across the entire load range, and the soft-start current limit threshold and switching frequency can be adjusted according to specific application requirements.
    The device includes an internal 250 kHz oscillator that can be set up to 1.5 MHz by changing an on-board resistor. Two A7987 regulators can be synchronized in a 180° out-of-phase configuration for reduced total input RMS current.

    Key Features

    • 4.5 V to 60 V input voltage
    • Step-down (buck) conversion
    • 3.3 V output voltage
    • Up to 3 A DC output current
    • 500 kHz switching frequency
    • 3.5 ms programmed soft-start
    • Compliant with ceramic output capacitors
    • 180° out-of-phase synchronization available
    • Auto recovery overcurrent and thermal protection
    • RoHS and China RoHS compliant
    • WEEE compliant (2012/19/UE RAEE II)

Sample & Buy

Part Number
Marketing Status
Budgetary Price (US$)*
Quantity
ECCN (US)
Country of Origin
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STEVAL-ISA207V1
Active
33.8 1 EAR99 ITALY Check Availability

Distributor availability ofSTEVAL-ISA207V1

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 10 1 Order Now

Distributor reported inventory date: 2019-07-22

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

10

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-07-22

Buy now

STEVAL-ISA207V1

Marketing Status

Active

Unit Price (US$)

33.8

Unit Price (US$)

33.8*

Distributor availability ofSTEVAL-ISA207V1

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 10 1 Order Now

Distributor reported inventory date: 2019-07-22

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

10

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-07-22

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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Technical Documentation

    • Description Version Size Action
      DB3887
      3 A step down DC/DC switching regulator (VIN = 4.5 V to 60 V) based on the A7987
      1.0
      1.34 MB
      PDF
      DB3887

      3 A step down DC/DC switching regulator (VIN = 4.5 V to 60 V) based on the A7987

Hardware Resources

    • Description Version Size Action
      STEVAL-ISA207V1 GERBER 1.0
      67.34 KB
      ZIP

      STEVAL-ISA207V1 GERBER

    • Description Version Size Action
      STEVAL-ISA207V1 BOM 1.0
      45.72 KB
      PDF

      STEVAL-ISA207V1 BOM

    • Description Version Size Action
      STEVAL-ISA207V1 SCHEMATIC 1.0
      86.62 KB
      PDF

      STEVAL-ISA207V1 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-ISA207V1
Active
Ecopack2 Yes

STEVAL-ISA207V1

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.