EVAL5987A

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3 A step-down switching regulator demonstration board based on the L5987, L5987A

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  • The EVAL5987/A demonstration board provides the design engineer with a fully functional stepdown switching regulator with an output current of up to 3 A. The board integrates STMicroelectronics’ L5987/A step-down switching regulator, together with all the external components required for a typical application.

    The rated voltage of the input capacitor and the Schottky diode rectifier repetitive peak reverse voltage are both 25 V, making the board capable of covering the entire 2.9 V - 18 V input voltage range of the L5987/A device.
    The board features an external resistor divider (R1 and R2) designed for an output voltage of 1.8 V.
    The output voltage can be set to a level from 0.6 V up to the input voltage.
    The compensation network on the demonstration board allows the use of MLCC as output filter to keep the loop stable. The inductor saturation current and forward current of the Schottky diode are within the current limit values.
    The switching frequency on the demonstration board is set to 500 kHz by means of the R5 resistor connected to pin Fsw.

    主な特徴

    • Zero-load current operation
    • Low dropout operation: 100% duty cycle
    • VFQFPN8 3 mm x 3 mm package or HSOP8 for the L5987A
    • 3 A DC output current
    • Output voltage adjustable from 0.6 V to 16 V
    • 2.9 V to 18 V input voltage
    • Internal soft-start and inhibit
    • Overcurrent and thermal protection
    • 250 kHz switching frequency, programmable up to 1 MHz

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EVAL5987A L5987A
Active
- EAR99 - - 在庫チェック

Distributor availability ofEVAL5987A

代理店名
地域 在庫 最小発注 Third party link
MOUSER WORLDWIDE 4 1 Order Now

代理店レポートによる在庫データ: 2019-12-13

代理店名

MOUSER

在庫

4

Min.Order

1

地域

WORLDWIDE Order Now

代理店レポートによる在庫データ: 2019-12-13

購入

EVAL5987A

コア製品

L5987A

製品ステータス

Active

Unit Price (US$)

*

Distributor availability ofEVAL5987A

代理店名
地域 在庫 最小発注 Third party link
MOUSER WORLDWIDE 4 1 Order Now

代理店レポートによる在庫データ: 2019-12-13

代理店名

MOUSER

在庫

4

Min.Order

1

地域

WORLDWIDE Order Now

代理店レポートによる在庫データ: 2019-12-13

Unit Price (US$)

-

Quantity

-

ECCN (US)

EAR99

Country of Origin

-

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

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技術文書

    • 概要 Version Size Action
      DB0919
      3 A step-down switching regulator demonstration board based on the L5987, L5987A
      1.1
      279.33 KB
      PDF
      DB0919

      3 A step-down switching regulator demonstration board based on the L5987, L5987A

関連資料

    • 概要 Version Size Action
      eDesignSuite-The smart way to design your application 1.0
      715.75 KB
      PDF

      eDesignSuite-The smart way to design your application

法務

    • 概要 Version Size Action
      Evaluation products license agreement 1.6
      74.12 KB
      PDF

      Evaluation products license agreement

製品型番 製品ステータス パッケージ グレード RoHSコンプライアンスグレード WEEE Compliant Material Declaration**
EVAL5987A
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CARD インダストリアル Not compliant -

EVAL5987A

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CARD

Material Declaration**:

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Active

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CARD

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Industrial

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Not compliant

(**) 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.

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