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

    主要特性

    • 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

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
STEVAL-ISA152V1 L7987
Active
85.0 1 EAR99 ITALY - 查看供货情况

Distributor availability ofSTEVAL-ISA152V1

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 6 1 Order Now
MOUSER WORLDWIDE 6 1 Order Now

代理商库存报告日期: 2019-09-19

代理商名称

DIGIKEY

库存

6

Min.Order

1

地区

WORLDWIDE Order Now

MOUSER

库存

6

Min.Order

1

地区

WORLDWIDE Order Now

代理商库存报告日期: 2019-09-19

立即购买

STEVAL-ISA152V1

核心产品

L7987

供货状态

批量生产

Unit Price (US$)

85.0*

Distributor availability ofSTEVAL-ISA152V1

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 6 1 Order Now
MOUSER WORLDWIDE 6 1 Order Now

代理商库存报告日期: 2019-09-19

代理商名称

DIGIKEY

库存

6

Min.Order

1

地区

WORLDWIDE Order Now

MOUSER

库存

6

Min.Order

1

地区

WORLDWIDE Order Now

代理商库存报告日期: 2019-09-19

Unit Price (US$)

85

数量

1

ECCN (US)

EAR99

Country of Origin

ITALY

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
      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

硬件资源

    • 描述 版本 文档大小 操作
      STEVAL-ISA152V1 gerber files 1.0
      1 MB
      ZIP

      STEVAL-ISA152V1 gerber files

    • 描述 版本 文档大小 操作
      STEVAL-ISA152V1 BOM 1.0
      47.66 KB
      PDF

      STEVAL-ISA152V1 BOM

    • 描述 版本 文档大小 操作
      STEVAL-ISA152V1 schematics 1.0
      48.84 KB
      PDF

      STEVAL-ISA152V1 schematics

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**
STEVAL-ISA152V1
Active
CARD 工业 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.