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STEVAL-ISA094V1

3 A step-down switching power supply demonstration board based on the L7981 (HSOP8)
  • active 活性

The STEVAL-ISA094V1 is a step-down switching power supply based on STMicroelectronics’ L7981 switching regulator in an HSOP8 package.

The L7981 features an embedded power MOSFET and is capable of delivering up to 3 A of current to the load, depending on the application conditions.

The input voltage can range from 4.5 V to 28 V, while the output voltage can be set from 0.6 V to VIN.

Requiring a minimum number of external components, the device includes an internal 250 kHz switching frequency oscillator that can be externally adjusted up to 1 MHz.

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Data Brief

Key Features

  • 3 A DC output current
  • 4.5 V to 28 V input voltage
  • Output voltage adjustable from 0.6 V
  • 250 kHz switching frequency, programmable up to 1 MHz
  • Internal soft-start and enable
  • Low dropout operation: 100% duty cycle
  • Voltage feed-forward
  • Zero load current operation
  • Overcurrent and thermal protection
  • RoHS compliant

圖像

图案 资源

顶部

Technical Documentation

Product Specifications

描述 版本 大小
pdf
DB1507: 3 A step-down switching power supply demonstration board based on the L7981 (HSOP8)
1.0 81 KB

Hardware Resources

Board Manufacturing Specification

描述 版本 大小
zip
STEVAL-ISA094V1 gerber files
2.0.0 31 KB

Bill of Materials

描述 版本 大小
pdf
STEVAL-ISA094V1 BOM
1.0.0 15 KB

Schematic Pack

描述 版本 大小
pdf
STEVAL-ISA094V1 schematics
1.0.0 38 KB

样品 & 购买

顶部
产品型号 Marketing StatusCore ProductOrder From STUnit Price (US$)*
@ 1
Distributor AvailabilityRoHS Compliance GradeDownload
Material Declaration**
STEVAL-ISA094V1ActiveL7981A-33Distributor reported inventory date: 2014-08-28
Distributor NameRegionStockMin. order
Newark Element14Order NowAMERICA50
P&SOrder NowASIA/PACIFIC11
ARROWOrder NowEUROPE300
DIGIKEYOrder NowWORLDWIDE21
Ecopack2-

(*) 建议零售价格仅用于预算,以美元为单位,每。的报价,以当地货币计算的价格,请联系您当地的 ST 销售办事处 或我们的 分销商
(**) 材料声明表格上提供st.com可以是一般的文件,根据最常用的包,包内的家庭。出于这个原因,他们可能不是100%准确,对于一个特定的设备。请联系我们 销售支持 在特定设备上的信息。
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