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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
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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.

pdf データシート
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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デザイン・リソース

トップ

Technical Documentation

Product Specifications

Description Version Size
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

Description Version Size
zip
STEVAL-ISA084V1 gerber files
3.0.0 143 KB

Bill of Materials

Description Version Size
pdf
STEVAL-ISA084V1 BOM
1.0.0 37 KB

Schematic Pack

Description Version Size
pdf
STEVAL-ISA084V1 schematics
1.0.0 50 KB

サンプル& 購入

トップ
製品型名 Marketing StatusCore ProductOrder From STUnit Price (US$)*
@ 1
Distributor AvailabilityRoHS Compliance GradeDownload
Material Declaration**
STEVAL-ISA084V1ActiveST1S40IDRBuy Direct46.55Distributor reported inventory date: 2014-11-24
Distributor NameRegionStockMin. order
Newark Element14Order NowAMERICA20
P&SOrder NowASIA/PACIFIC11
Farnell Element14Order NowEUROPE51
DIGIKEYOrder NowWORLDWIDE31
MOUSEROrder NowWORLDWIDE11
Ecopack2-

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(**)弊社ホームページで入手できるMaterial Declaration(材料宣誓書)のフォームは、各パッケージ・タイプで最も一般的に使用されるパッケージに基づいた包括的な文書です。そのため、特定のデバイスについて100%正確ではない可能性があります。特定のデバイスに関する情報については、 弊社セールスオフィス にお問合せ下さい。
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