EVAL5987A

批量生产

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.

    主要特性

    • 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

样片和购买

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EVAL5987A L5987A
批量生产
- EAR99 - - 查看供货情况

Distributor availability ofEVAL5987A

代理商名称
地区 库存 最小订购量 Third party link
MOUSER WORLDWIDE 4 1 Order Now

代理商库存报告日期: 2019-12-10

代理商名称

MOUSER

库存

4

Min.Order

1

地区

WORLDWIDE Order Now

代理商库存报告日期: 2019-12-10

立即购买

EVAL5987A

核心产品

L5987A

供货状态

批量生产

单价(US$)

*

Distributor availability ofEVAL5987A

代理商名称
地区 库存 最小订购量 Third party link
MOUSER WORLDWIDE 4 1 Order Now

代理商库存报告日期: 2019-12-10

代理商名称

MOUSER

库存

4

Min.Order

1

地区

WORLDWIDE Order Now

代理商库存报告日期: 2019-12-10

单价(US$)

-

数量

-

ECCN (US)

EAR99

Country of Origin

-

Board production status

-

(*) 建议转售单价(美元)仅用于预算用途。如需以当地货币计价的报价,请联系您当地的 ST销售办事处 或我们的 经销商

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技术文档

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      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

出版刊物和宣传资料

    • 描述 版本 文档大小 操作
      eDesignSuite-The smart way to design your application 1.0
      842.88 KB
      PDF

      eDesignSuite-The smart way to design your application

法律

    • 描述 版本 文档大小 操作
      Evaluation products license agreement 1.6
      74.12 KB
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      Evaluation products license agreement

产品型号 供货状态 封装 等级规格 符合RoHS级别 WEEE Compliant Material Declaration**
EVAL5987A
批量生产
CARD 工业 Not compliant -

EVAL5987A

Package:

CARD

Material Declaration**:

Marketing Status

批量生产

Package

CARD

Grade

Industrial

RoHS Compliance Grade

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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