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  • The STEVAL-ISA198V1 product evaluation board is a step-down switching power supply based on the L7987L regulator in an HTSSOP16 package. The output voltage can be set starting from 0.8 V. Low drop-out operation, due to the advanced integrated switch management, can be achieved.

    The L7987L is a 61 V, 2 A step-down asynchronous switching regulator with embedded power MOSFET capable of delivering up to 2 A of current, depending on the application conditions.
    The embedded switch-over feature on the VBIAS pin and the light load management (pulse skipping) help maximize power conversion efficiency across the entire load range.
    The soft-start, current limit threshold and switching frequency are adjustable for application optimization.
    The device includes an internal 250 kHz oscillator that can be externally adjusted up to 1.5 MHz; two L7987L 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
    • 5 V output voltage (VIN > 6 V)
    • Up to 2 A DC output current
    • 500 kHz switching frequency
    • 5 ms programmed soft-start
    • Compliant with ceramic output capacitors
    • 180° out of phase synchronization available
    • Auto recovery overcurrent and thermal protection
    • RoHS compliant

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Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade WEEE Compliant Material Declaration**
STEVAL-ISA198V1
Active
CARD Industrial Ecopack2 -

STEVAL-ISA198V1

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
Supplier
ECCN (US)
ECCN (EU)
Country of Origin
Board production status
Budgetary Price (US$)*/Qty
STEVAL-ISA198V1 Available at 3 distributors

Distributor availability ofSTEVAL-ISA198V1

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 14 1 Order Now
RS COMPONENTS EUROPE 8 1 Order Now
MOUSER WORLDWIDE 21 1 Order Now

Distributor reported inventory date: 2020-11-24

Distributor Name

DIGIKEY

Stock

14

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

8

Min.Order

1

Region

EUROPE Order Now

MOUSER

Stock

21

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-11-24

Buy Direct L7987L
Active
ST EAR99 NEC ITALY - 30.0 / 1

STEVAL-ISA198V1

Core Product

L7987L

Marketing Status

Active

Budgetary Price (US$)*/Qty

30.0 / 1

Distributor availability ofSTEVAL-ISA198V1

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 14 1 Order Now
RS COMPONENTS EUROPE 8 1 Order Now
MOUSER WORLDWIDE 21 1 Order Now

Distributor reported inventory date: 2020-11-24

Distributor Name

DIGIKEY

Stock

14

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

8

Min.Order

1

Region

EUROPE Order Now

MOUSER

Stock

21

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-11-24

Supplier

ST

ECCN (US)

EAR99

ECCN (EU)

NEC

Budgetary Price (US$)* / Qty

30.0 / 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