0.7 A / 1.2 V synchronous buck converter with enable function based on the ST1S12XX

下载产品简介

Order from our eStore and our distributors

立即购买
概述
工具与软件
资源
解决方案
质量与可靠性
Sales Briefcase
eDesignSuite
开始
样片和购买
Partner products
  • This demonstration board is based on the ST1S12 family of synchronous step-down DC-DC converters optimized for powering low-voltage digital cores in HDD (hard disk drive) applications and is generally used to replace high-current linear solutions when power dissipation may cause high heating of the application environment.

    It provides up to 0.7 A over an input voltage range of 2.5 V to 5.5 V. A high switching frequency of 1.7 MHz allows the use of tiny surface-mount components. For the adjustable version, a resistor divider to set the output voltage value, an inductor, and two capacitors are required. Only an inductor and 2 capacitors are needed for the 1.2 V and 1.8 V fixed version. A low output ripple is guaranteed by the current mode PWM topology and by the use of low ESR surface-mount ceramic capacitors.
    The ST1S12 device is thermal protected and current limited to prevent damage due to accidental short-circuit. This family of products is available in the TSOT23-5L package.

    主要特性

    • RDS(on) typ. 250 m and 400 m
    • Not switching quiescent current: max 600 μA over temperature range
    • Uses tiny capacitors and inductors
    • Internal soft-start
    • Enable function
    • Step-down current mode PWM (1.7 MHz) DCDC converter
    • 0.7 A output current capability
    • Fixed output voltage of 1.2 V
    • Synchronous rectification
    • Typical efficiency: > 90%
    • 3% DC output voltage tolerance

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-ISA055V1 ST1S12GR
批量生产
46.0 1 EAR99 ITALY - 查看供货情况

Distributor availability ofSTEVAL-ISA055V1

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 5 1 Order Now
P&S ASIA/PACIFIC 1 1 Order Now

代理商库存报告日期: 2019-10-22

代理商名称

DIGIKEY

库存

5

Min.Order

1

地区

WORLDWIDE Order Now

P&S

库存

1

Min.Order

1

地区

ASIA/PACIFIC Order Now

代理商库存报告日期: 2019-10-22

立即购买

STEVAL-ISA055V1

核心产品

ST1S12GR

供货状态

批量生产

单价(US$)

46.0*

Distributor availability ofSTEVAL-ISA055V1

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 5 1 Order Now
P&S ASIA/PACIFIC 1 1 Order Now

代理商库存报告日期: 2019-10-22

代理商名称

DIGIKEY

库存

5

Min.Order

1

地区

WORLDWIDE Order Now

P&S

库存

1

Min.Order

1

地区

ASIA/PACIFIC Order Now

代理商库存报告日期: 2019-10-22

单价(US$)

46

数量

1

ECCN (US)

EAR99

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

适合您的资源

相关应用

LED照明和控制

家居、建筑和城市自动化

工业电源及工具

电源和变换器

00 选择要下载的文档

技术文档

    • 描述 版本 文档大小 操作
      DB0691
      0.7 A / 1.2 V synchronous buck converter with enable function based on the ST1S12XX
      1.2
      72.36 KB
      PDF
      DB0691

      0.7 A / 1.2 V synchronous buck converter with enable function based on the ST1S12XX

硬件资源

    • 描述 版本 文档大小 操作
      Gerber files for STEVAL-ISA055V1 board 1.0
      185.75 KB
      ZIP

      Gerber files for STEVAL-ISA055V1 board

    • 描述 版本 文档大小 操作
      BOM for STEVAL-ISA055V1 board 1.0
      44.73 KB
      PDF

      BOM for STEVAL-ISA055V1 board

    • 描述 版本 文档大小 操作
      Board schematics for STEVAL-ISA055V1 board 1.0
      35.92 KB
      PDF

      Board schematics for STEVAL-ISA055V1 board

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-ISA055V1
批量生产
CARD 工业 Ecopack2 -

STEVAL-ISA055V1

Package:

CARD

Material Declaration**:

Marketing Status

批量生产

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.