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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

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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
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      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

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      Terms of use 1.7
      57.54 KB
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      Terms of use

质量与可靠性

产品型号 Marketing Status 封装 等级规格 符合RoHS级别 WEEE Compliant 材料声明**
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

(**) st.com上提供的材料声明表单可能是基于包装系列中最常用的封装的通用文档。因此,它们可能不是100%适用于特定的设备。有关特定设备的信息,请联系 销售支持

样片和购买

产品型号
从分销商订购
从ST订购
核心产品
供货状态
供应商
ECCN (US)
ECCN (EU)
Country of Origin
Board production status
Budgetary Price (US$)*/Qty
EVAL5987A Available at 1 distributors

...的经销商可用性EVAL5987A

代理商名称
地区 库存 最小订购量 第三方链接
MOUSER WORLDWIDE 2 1 马上订购

代理商库存报告日期: 2020-08-09

代理商名称

MOUSER

库存

2

Min.Order

1

地区

WORLDWIDE 马上订购

代理商库存报告日期: 2020-08-09

立即购买 L5987A
批量生产
- EAR99 NEC ITALY -

EVAL5987A

核心产品

L5987A

供货状态

批量生产

Budgetary Price (US$)*/Qty

...的经销商可用性EVAL5987A

代理商名称
地区 库存 最小订购量 第三方链接
MOUSER WORLDWIDE 2 1 马上订购

代理商库存报告日期: 2020-08-09

代理商名称

MOUSER

库存

2

Min.Order

1

地区

WORLDWIDE 马上订购

代理商库存报告日期: 2020-08-09

供应商

-

ECCN (US)

EAR99

ECCN (EU)

NEC

Budgetary Price (US$)* / Qty

Country of Origin

ITALY

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