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  • The EVAL5985 demonstration board provides the design engineer with a fully functional step-down switching regulator with an output current of up to 2 A. The board integrates STMicroelectronics' L5985 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 L5985 device.
    The board features an external resistor divider (R1 and R2) designed for an output voltage of 3.3 V.
    The output voltage can be set to a level from 0.6 V up to the rated voltage of the output capacitor (16 V).
    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
    • 2 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
    • Over-current and thermal protection
    • 250 kHz switching frequency, programmable up to 1 MHz

样片和购买

产品型号
核心产品
供货状态
预算价格(US$)
数量
ECCN (US)
Country of Origin
Board production status
从分销商订购
从ST订购
EVAL5985 L5985
Active
- - EAR99 - - No availability of distributors reported, please contact our sales office

EVAL5985

核心产品

L5985

供货状态

批量生产

Unit Price (US$)

*

Unit Price (US$)

-

数量

-

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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技术文档

    • 描述 版本 文档大小 操作
      DS6002
      2 A step-down switching regulator demonstration board based on the L5985
      1.1
      182.7 KB
      PDF
      DS6002

      2 A step-down switching regulator demonstration board based on the L5985

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
      PDF

      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 材料声明**
EVAL5985
Active
CARD 工业 Not compliant -

EVAL5985

Package:

CARD

Material Declaration**:

Marketing Status

Active

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.