ST Life.augmented

STEVAL-ISA083V1

4 A peak 800 kHz fixed-frequency PWM synchronous step-down demonstration board with enable on/off based on the ST1S40IPUR
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The STEVAL-ISA083V1, based on the ST1S40IPUR, 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.

pdf データシート
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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デザイン・リソース

トップ

Technical Documentation

Product Specifications

Description Version Size
pdf
DB1449: 4 A peak 800 kHz fixed-frequency PWM synchronous step-down demonstration board with enable on/off based on the ST1S40IPUR
1.0 109 KB

Hardware Resources

Board Manufacturing Specification

Description Version Size
zip
STEVAL-ISA083V1 gerber files
2.0.0 106 KB

Bill of Materials

Description Version Size
pdf
STEVAL-ISA083V1 BOM
1.0.0 71 KB

Schematic Pack

Description Version Size
pdf
STEVAL-ISA083V1 schematics
1.0.0 38 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-ISA083V1ActiveST1S40IPUR-51Distributor reported inventory date: 2014-10-25
Distributor NameRegionStockMin. order
Newark Element14Order NowAMERICA50
P&SOrder NowASIA/PACIFIC11
Farnell Element14Order NowEUROPE11
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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