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STEVAL-ISA084V1

4 A peak, 800 kHz fixed-frequency PWM synchronous step-down demonstration board with enable on/off based on the ST1S40
  • active 活性

The STEVAL-ISA084V1, based on the ST1S40, is an internally compensated 800 kHz fixed-frequency PWM synchronous step-down converter demonstration board.

The ST1S40 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 ST1S40 integrates 95 mΩ high side switch and 69 mΩ synchronous rectifier allowing very high efficiency with very low output voltages.

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

The device is protected through cycle-by-cycle current limiting in case of overload and is also protected by current foldback function with frequency reduction in case of short-circuit

The device is available with an enable on/off function.

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Data Brief

Key Features

  • Vin: 4 V to 18 V
  • Vout: 3.3 V
  • Maximum output current: 4 A
  • Switching frequency: 800 kHz
  • Short-circuit: protected
  • 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
DB1494: 4 A peak, 800 kHz fixed-frequency PWM synchronous step-down demonstration board with enable on/off based on the ST1S40
1.0 103 KB

Hardware Resources

Board Manufacturing Specification

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zip
STEVAL-ISA084V1 gerber files
3.0.0 143 KB

Bill of Materials

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pdf
STEVAL-ISA084V1 BOM
1.0.0 37 KB

Schematic Pack

描述 版本 大小
pdf
STEVAL-ISA084V1 schematics
1.0.0 50 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-ISA084V1ActiveST1S40IDRBuy Direct46.55Distributor reported inventory date: 2014-07-24
Distributor NameRegionStockMin. order
Newark Element14Order NowAMERICA20
P&SOrder NowASIA/PACIFIC11
Farnell Element14Order NowEUROPE71
DIGIKEYOrder NowWORLDWIDE41
MOUSEROrder 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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