3 A / 1.5 MHz step-down synchronous switching regulator based on the ST1S31 in DFN 3x3 package

The STEVAL-ISA069V1 demonstration board is based on the ST1S31, which is an internally compensated 1.5 MHz fixed-frequency PWM synchronous step-down regulator. This device operates from 2.8 V to 5.5 V input, while it regulates an output voltage as low as 0.8 V and up to Vin.

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

Key Features

  • 4 A peak output current
  • From 2.8 V to 5.5 V input voltage
  • Output voltage adjustable from 0.8 V
  • 1.5 MHz switching frequency
  • Internal soft-start and enable
  • Integrated 60 mΩ and 45 mΩ power MOSFETs
  • All ceramic capacitors
  • Power Good (POR)
  • Cycle-by-cycle current limiting
  • Current foldback short-circuit protection
  • RoHS compliant

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デザイン

技術文書

製品スペック
Description バージョン サイズ
DB1572 DB1572: 3 A / 1.5 MHz step-down synchronous switching regulator based on the ST1S31 in DFN 3x3 package 1.1 275 KB

ハードウェアリソース

Board Manufacturing Specifications
Description バージョン サイズ
STEVAL-ISA069V1 gerber files 1.0 76 KB
Bill of Materials
Description バージョン サイズ
STEVAL-ISA069V1 BOM 1.0 36 KB
Schematic Packs
Description バージョン サイズ
STEVAL-ISA069V1 schematics 1.0 26 KB

法務

ライセンス契約
Description バージョン サイズ
Evaluation products license agreement 1.0 125 KB
サポート & コミュニティ

サンプル & 購入

製品型番 Core Product Marketing Status Unit Price (US$) * 数量 ECCN (EU) ECCN (US) Country of Origin More info Order from ST Order from Distributors
STEVAL-ISA069V1 ST1S31 Active 51.45 1 NEC EAR99 ITALY MORE INFO 直接購入 買い物かごに追加 DISTRIBUTOR AVAILABILITY
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(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office  or our Distributors

品質 & 信頼性

製品型番 Marketing Status パッケージ Grade RoHS Compliance Grade Material Declaration**
STEVAL-ISA069V1 アクティブCARDIndustrialEcopack2
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(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.

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