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

    主な特徴

    • 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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製品型番
Core Product
Marketing Status
Budgetary Price (US$)*
数量
ECCN (US)
Country of Origin
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Order from ST
STEVAL-ISA152V1 L7987
Active
85.0 1 EAR99 ITALY Check Availability

Distributor availability ofSTEVAL-ISA152V1

代理店名
地域 在庫 最小発注 Third party link
DIGIKEY WORLDWIDE 6 1 Order Now
MOUSER WORLDWIDE 9 1 Order Now

代理店レポートによる在庫データ: 2019-05-22

代理店名

DIGIKEY

在庫

6

Min.Order

1

地域

WORLDWIDE Order Now

MOUSER

在庫

9

Min.Order

1

地域

WORLDWIDE Order Now

代理店レポートによる在庫データ: 2019-05-22

Buy now

STEVAL-ISA152V1

Core Product

L7987

Marketing Status

アクティブ

Unit Price (US$)

85.0*

Distributor availability ofSTEVAL-ISA152V1

代理店名
地域 在庫 最小発注 Third party link
DIGIKEY WORLDWIDE 6 1 Order Now
MOUSER WORLDWIDE 9 1 Order Now

代理店レポートによる在庫データ: 2019-05-22

代理店名

DIGIKEY

在庫

6

Min.Order

1

地域

WORLDWIDE Order Now

MOUSER

在庫

9

Min.Order

1

地域

WORLDWIDE Order Now

代理店レポートによる在庫データ: 2019-05-22

Unit Price (US$)

85

数量

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

00 Files selected for download

技術文書

    • Description バージョン サイズ アクション
      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

ハードウェアリソース

    • Description バージョン サイズ アクション
      STEVAL-ISA152V1 gerber files 1.0
      1 MB
      ZIP

      STEVAL-ISA152V1 gerber files

    • Description バージョン サイズ アクション
      STEVAL-ISA152V1 BOM 1.0
      47.66 KB
      PDF

      STEVAL-ISA152V1 BOM

    • Description バージョン サイズ アクション
      STEVAL-ISA152V1 schematics 1.0
      48.84 KB
      PDF

      STEVAL-ISA152V1 schematics

Publications and Collaterals

    • Description バージョン サイズ アクション
      eDesignSuite-The smart way to design your application 1.0
      842.88 KB
      PDF

      eDesignSuite-The smart way to design your application

法務

    • Description バージョン サイズ アクション
      Evaluation products license agreement 1.6
      74.12 KB
      PDF

      Evaluation products license agreement

製品型番 Marketing Status パッケージ Grade RoHS Compliance Grade WEEE Compliant Material Declaration**
STEVAL-ISA152V1
Active
CARD インダストリアル 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.