ST Life.augmented

STEVAL-ISA108V1

4 A, 850 kHz fixed-frequency PWM synchronous step-down demostration board based on the ST1S41 in a VFQFPN package
  • active 活性

Based on the ST1S41 step-down switching regulator, the STEVAL-ISA108V1 demonstration board is an internally-compensated 850 kHz fixed-frequency PWM synchronous step-down converter.

The ST1S41 operates from 4.0 V to 18 V input, while it regulates an output voltage as low as 0.8 V and up to VIN(100% duty cycle).

The ST1S41 integrates a 95 mΩ high side switch and 69 mΩ low side synchronous rectifier, resulting in very high efficiency with very low output voltages.

The peak current mode control with internal compensation offers a compact solution with a minimum component count.

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Data Brief

Key Features

  • 4 to 18 V input voltage
  • Output voltage adjustable from 0.8 V
  • 850 kHz switching frequency
  • Internal soft-start
  • Integrated 95 mΩ and 69 mΩ power MOSFETs
  • All ceramic capacitor
  • Enable function
  • Cycle-by-cycle current limiting
  • Current fold-back short-circuit protection
  • RoHS compliant

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图案 资源

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Technical Documentation

Product Specifications

描述 版本 大小
pdf
DB1883: 4 A, 850 kHz fixed-frequency PWM synchronous step-down demostration board based on the ST1S41 in a VFQFPN package
1.0 136 KB

Hardware Resources

Board Manufacturing Specification

描述 版本 大小
zip
STEVAL-ISA108V1 gerber files
186 KB

Bill of Materials

描述 版本 大小
pdf
STEVAL-ISA108V1 BOM
54 KB

Schematic Pack

描述 版本 大小
pdf
STEVAL-ISA108V1 schematics
83 KB

样品 & 购买

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产品型号 Marketing StatusCore ProductOrder From STUnit Price (US$)*
@ 1
Distributor AvailabilityRoHS Compliance GradeDownload
Material Declaration**
STEVAL-ISA108V1ActiveST1S41PURBuy Direct37.97Distributor reported inventory date: 2014-10-01
Distributor NameRegionStockMin. order
Newark Element14Order NowAMERICA30
Farnell Element14Order NowEUROPE21
DIGIKEYOrder NowWORLDWIDE41
MOUSEROrder NowWORLDWIDE11
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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