STEVAL-ISA198V1

Active

2 A step down DC - DC switching regulator (VIN = 4.5 V to 60 V) based on the L7987L

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Product overview

Description

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.
  • All 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

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
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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 98 1 Buy from Distributor
RS COMPONENTS EUROPE 5 1 Buy from Distributor
MOUSER WORLDWIDE 10 1 Buy from Distributor

Distributor reported inventory date: 2021-10-15

Distributor Name

DIGIKEY

Stock

98

Min.Order

1

Region

WORLDWIDE Buy from Distributor

RS COMPONENTS

Stock

5

Min.Order

1

MOUSER

Stock

10

Min.Order

1

Region

WORLDWIDE Buy from Distributor

Distributor reported inventory date: 2021-10-15

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 98 1 Buy from Distributor
RS COMPONENTS EUROPE 5 1 Buy from Distributor
MOUSER WORLDWIDE 10 1 Buy from Distributor

Distributor reported inventory date: 2021-10-15

Distributor Name

DIGIKEY

Stock

98

Min.Order

1

Region

WORLDWIDE Buy from Distributor

RS COMPONENTS

Stock

5

Min.Order

1

MOUSER

Stock

10

Min.Order

1

Region

WORLDWIDE Buy from Distributor

Distributor reported inventory date: 2021-10-15

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 (USD) per defined quantity for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors