ST Life.augmented

STEVAL-ISA082V1

4 A peak 800 kHz fixed-frequency PWM synchronous step-down demonstration board with enable on/off based on the ST1S40IPHR
  • active 活性

The STEVAL-ISA082V1, based on the ST1S40IPHR, is an internally compensated 800 kHz fixed-frequency PWM synchronous step-down converter demonstration board.

The ST1S40 operates from 4.0 V to 18.0 V input, while it regulates an output voltage as low as 0.8 V and up to VIN(100% duty cycle).

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

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

The ST1S40 is protected through cycle-by-cycle current limiting in case of overload and is also protected by a 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

  • Input voltage Vin: 4 V to 18 V
  • Output voltage 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

顶部

Technical Documentation

Product Specifications

描述 版本 大小
pdf
DB1447: 4 A peak 800 kHz fixed-frequency PWM synchronous step-down demonstration board with enable on/off based on the ST1S40IPHR
1.1 109 KB

Hardware Resources

Board Manufacturing Specification

描述 版本 大小
zip
STEVAL-ISA082V1 gerber files
2.0.0 135 KB

Bill of Materials

描述 版本 大小
pdf
STEVAL-ISA082V1 BOM
1.0.0 70 KB

Schematic Pack

描述 版本 大小
pdf
STEVAL-ISA082V1 schematics
1.0.0 38 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-ISA082V1ActiveST1S40IPHR-47Distributor reported inventory date: 2014-12-20
Distributor NameRegionStockMin. order
Newark Element14Order NowAMERICA50
P&SOrder NowASIA/PACIFIC11
Farnell Element14Order NowEUROPE11
DIGIKEYOrder NowWORLDWIDE41
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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