降圧コンバータ

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ソリューション

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主要製品

はじめる

バック（ステップダウン）トポロジは、入力 / 出力絶縁の有無にかかわらず出力電圧が入力電圧を下回るDC-DCスイッチング･コンバータで使用されます。

STは、突入電流を最小限に抑えるソフト･スタートや電源投入時のシーケンス処理を可能にするパワー･グッドなど、様々な機能を備えた降圧コンバータIC（パワー･スイッチ内蔵）や多相コントローラ、単相コントローラ、マルチ出力コントローラを提供しています。また、特定のEMI / EMC / 効率 / 電力密度目標やユース･ケース向けに微調整された降圧コンバータの設計に役立つプログラマブル･デバイスも利用可能です。

STは、CPUやDDRメモリ向けに、Intel VR13/VR12.5仕様に準拠した絶縁型シングル･ステージ48V/ポイント･オブ･ロード（PoL）共振直接変換ソリューションも開発しています。また、ダイナミック･セル･シェディングやパルス･スキップ機能を備えた、最大6つのインタリーブ･セル向けの極めて拡張性に優れたソリューションも提供しています。

さらに、製品開発期間の短縮をサポートする様々な評価および開発ツールやリファレンス設計を取り揃えています。

降圧コンバータ回路図

Power Schottky

STripFET F7 series

STripFET F7 series

A6727

STripFET F7 series

STripFET F7 series

Power Schottky

Power Schottky

A6727

Buck Regulators

Multi-phase Controllers

STripFET F7

STripFET F7

STripFET F7

STripFET F7

All resources

アプリケーションノート (5 of 18)

Design Notes & Tips (2)

	Resource title		Latest update
PDF	DN0010 Adapting ST power line modem evaluation boards to communicate over a DC bus 1.2		16 Jul 2019	16 Jul 2019 DN0010 Adapting ST power line modem evaluation boards to communicate over a DC bus 1.2
PDF	DN0011 ST1S03 alternative topology: Using a buck in a negative buck-boost configuration 1.2		16 Jul 2019	16 Jul 2019 DN0011 ST1S03 alternative topology: Using a buck in a negative buck-boost configuration 1.2

フライヤ (3)

	Resource title	Latest update
PDF	A698x family High-performance automotive synchronous DC-DC converters 1.0	23 Dec 2020	23 Dec 2020 A698x family High-performance automotive synchronous DC-DC converters 1.0
PDF	A798x, A597x switching regulators for car power management 1.0	04 Jan 2021	04 Jan 2021 A798x, A597x switching regulators for car power management 1.0
PDF	AST1S3x family Power optimization for postregulated automotive systems 1.0	04 Jan 2021	04 Jan 2021 AST1S3x family Power optimization for postregulated automotive systems 1.0

セレクション･ガイド (1)

	Resource title		Latest update
PDF	Linear and Switching Voltage Regulators Selection Guide 3.0		04 Jan 2021	04 Jan 2021 Linear and Switching Voltage Regulators Selection Guide 3.0

All tools & software

検索アプリ

製品型番	ステータス	概要	タイプ	サプライヤ
ST Diode Finder	量産中	Diode product finder application for Android and iOS	検索アプリ	ST	ST Diode Finder 概要: Diode product finder application for Android and iOS

コンバータ

コンバータ

DC/DC

Input

Volt. Min V This option is required. And must be less than or equal to Volt. Max [V]

Volt. Max V This option is required. And must be greater than or equal to Volt. Min [V]

Output Power

Voltage V This option is required and must be a number.

Current A This option is required and must be a number.

検索

	Resource title	Latest update
PDF	AN1768 ADMISSIBLE AVALANCHE POWER OF SCHOTTKY DIODES 1.1	24 Mar 2020	24 Mar 2020 AN1768 ADMISSIBLE AVALANCHE POWER OF SCHOTTKY DIODES 1.1
PDF	AN2025 CONVERTER IMPROVEMENT USING SCHOTTKY RECTIFIER AVALANCHE SPECIFICATION 1.1	13 Sep 2018	13 Sep 2018 AN2025 CONVERTER IMPROVEMENT USING SCHOTTKY RECTIFIER AVALANCHE SPECIFICATION 1.1
PDF	AN604 Calculation of conduction losses in a power rectifier 3.2	24 Mar 2020	24 Mar 2020 AN604 Calculation of conduction losses in a power rectifier 3.2
PDF	AN4021 Calculation of reverse losses in a power diode 1.0	24 Mar 2020	24 Mar 2020 AN4021 Calculation of reverse losses in a power diode 1.0
PDF	AN5028 Calculation of turn-off power losses generated by a ultrafast diode 1.0	13 Sep 2018	13 Sep 2018 AN5028 Calculation of turn-off power losses generated by a ultrafast diode 1.0
PDF	AN4381 Current sharing in parallel diodes 1.0	24 Mar 2020	24 Mar 2020 AN4381 Current sharing in parallel diodes 1.0
PDF	AN3267 Impact of power MOSFET VGS on buck converter performance 1.2	13 Sep 2018	13 Sep 2018 AN3267 Impact of power MOSFET VGS on buck converter performance 1.2
PDF	AN1453 NEW FAMILY OF 150V POWER SCHOTTKY 1.1	24 Mar 2020	24 Mar 2020 AN1453 NEW FAMILY OF 150V POWER SCHOTTKY 1.1
PDF	AN4391 New P-channel trench technology from ST for low power DC-DC conversions and load switching applications 1.0	13 Sep 2018	13 Sep 2018 AN4391 New P-channel trench technology from ST for low power DC-DC conversions and load switching applications 1.0
PDF	AN4150 Power MOSFET technology gate current needs in a synchronous buck converter 1.2	07 Jan 2019	07 Jan 2019 AN4150 Power MOSFET technology gate current needs in a synchronous buck converter 1.2
PDF	AN4191 Power MOSFET: Rg impact on applications 1.2	07 Jan 2019	07 Jan 2019 AN4191 Power MOSFET: Rg impact on applications 1.2
PDF	AN4192 Power MOSFETs: best choice guide for VRM application 1.0	13 Sep 2018	13 Sep 2018 AN4192 Power MOSFETs: best choice guide for VRM application 1.0
PDF	AN5046 Printed circuit board assembly recommendations for STMicroelectronics PowerFLAT packages 4.0	24 Mar 2020	24 Mar 2020 AN5046 Printed circuit board assembly recommendations for STMicroelectronics PowerFLAT packages 4.0
PDF	AN5088 Rectifiers thermal management, handling and mounting recommendations 2.0	24 Mar 2020	24 Mar 2020 AN5088 Rectifiers thermal management, handling and mounting recommendations 2.0
PDF	AN533 SCRs, TRIACs, and AC switches, thermal management precautions for handling and mounting 3.6	24 Mar 2020	24 Mar 2020 AN533 SCRs, TRIACs, and AC switches, thermal management precautions for handling and mounting 3.6
PDF	AN443 SERIES OPERATION ON FAST RECTIFIERS 2.1	24 Mar 2020	24 Mar 2020 AN443 SERIES OPERATION ON FAST RECTIFIERS 2.1
PDF	AN1542 THE THERMAL RUNAWAY LAW IN SCHOTTKY USED IN OR-ING APPLICATION 1.1	13 Sep 2018	13 Sep 2018 AN1542 THE THERMAL RUNAWAY LAW IN SCHOTTKY USED IN OR-ING APPLICATION 1.1
PDF	AN869 Tj max limit of Schottky diodes 2.2	24 Mar 2020	24 Mar 2020 AN869 Tj max limit of Schottky diodes 2.2