STEVAL-ISA152V1

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3.3 V/3 A high efficiency step down DC-DC converter (VIN= 4.5 to 60 V) based on the L7987

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  • The STEVAL-ISA152V1 product evaluation board is a step-down switching power supply based on the L7987 regulator in an HTSSOP16 package. The output voltage can be set starting from 0.8 V. Low drop-out operation, with almost 100% duty cycle, can be achieved.

    The L7987 is a 61 V, 3 A step-down asynchronous switching regulator with embedded power MOSFET caable of delivering up to 3 A of current, depending on the application conditions.
    The embedded switch-over feature on the VBIAS pin and the light load management (pulse skipping) are intended to maximize power conversion efficiency across the entire load range.
    The soft-start, current limit threshold and the 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 L7987 regulators can be synchronized in a 180° out-of-phase configuration for reduced total input RMS current

    Key Features

    • 3.3 V output voltage
    • 3 A DC output current
    • 4.5 V to 60 V input voltage
    • 500 kHz switching frequency
    • 3.5 ms programmed soft-start
    • VBIAS switch-over for improved efficiency at light load
    • 180° out of phase synchronization available
    • Open drain PGOOD available
    • Auto recovery overcurrent and thermal protection
    • RoHS compliant

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Technical Documentation

    • Description Version Size Action
      DB2108
      3.3 V/3 A high efficiency step down DC-DC converter (VIN= 4.5 to 60 V) based on the L7987
      1.0
      131.71 KB
      PDF
      DB2108

      3.3 V/3 A high efficiency step down DC-DC converter (VIN= 4.5 to 60 V) based on the L7987

Hardware Resources

    • Description Version Size Action
      STEVAL-ISA152V1 gerber files 1.0
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      STEVAL-ISA152V1 gerber files

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      STEVAL-ISA152V1 BOM 1.0
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      STEVAL-ISA152V1 BOM

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      STEVAL-ISA152V1 schematics 1.0
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      STEVAL-ISA152V1 schematics

Publications and Collaterals

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

Legal

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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-ISA152V1
Active
CARD Industrial Ecopack2 -

STEVAL-ISA152V1

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-ISA152V1 Available at 5 distributors

Distributor availability ofSTEVAL-ISA152V1

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 4 1 Order Now
COMPEL EUROPE 1 1 Order Now
RS COMPONENTS EUROPE 3 1 Order Now
MOUSER WORLDWIDE 7 1 Order Now
Farnell Element14 EUROPE 3 1 Order Now

Distributor reported inventory date: 2020-08-02

Distributor Name

DIGIKEY

Stock

4

Min.Order

1

Region

WORLDWIDE Order Now

COMPEL

Stock

1

Min.Order

1

Region

EUROPE Order Now

RS COMPONENTS

Stock

3

Min.Order

1

Region

EUROPE Order Now

MOUSER

Stock

7

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

3

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-08-02

Buy now L7987
Active
- EAR99 NEC ITALY - 85.0 / 1

STEVAL-ISA152V1

Core Product

L7987

Marketing Status

Active

Budgetary Price (US$)*/Qty

85.0 / 1

Distributor availability ofSTEVAL-ISA152V1

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 4 1 Order Now
COMPEL EUROPE 1 1 Order Now
RS COMPONENTS EUROPE 3 1 Order Now
MOUSER WORLDWIDE 7 1 Order Now
Farnell Element14 EUROPE 3 1 Order Now

Distributor reported inventory date: 2020-08-02

Distributor Name

DIGIKEY

Stock

4

Min.Order

1

Region

WORLDWIDE Order Now

COMPEL

Stock

1

Min.Order

1

Region

EUROPE Order Now

RS COMPONENTS

Stock

3

Min.Order

1

Region

EUROPE Order Now

MOUSER

Stock

7

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

3

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-08-02

Supplier

-

ECCN (US)

EAR99

ECCN (EU)

NEC

Budgetary Price (US$)* / Qty

85.0 / 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