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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。続きを読む

製品 & ソリューション

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。

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	Resource title	バージョン	Latest update

アプリケーションノート (5 of 18)

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Design Notes & Tips (2)

	Resource title	バージョン	Latest update
PDF	DN0010 Adapting ST power line modem evaluation boards to communicate over a DC bus	1.2	23 Apr 2021	23 Apr 2021 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	バージョン	Latest update
PDF	A698x family High-performance automotive synchronous DC-DC converters	1.0	17 May 2021	17 May 2021 A698x family High-performance automotive synchronous DC-DC converters 1.0
PDF	A798x, A597x switching regulators for car power management	1.0	02 Jul 2021	02 Jul 2021 A798x, A597x switching regulators for car power management 1.0
PDF	AST1S3x family Power optimization for postregulated automotive systems	1.0	15 Apr 2021	15 Apr 2021 AST1S3x family Power optimization for postregulated automotive systems 1.0

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	製品型番	ステータス	概要	タイプ	サプライヤ
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All Hardware Evaluation Tools

評価ツール

製品型番	概要	Core product	ツールタイプ	サプライヤ	Sort by: part number
AEK-POW-L5964V1 量産中	Digitally controlled DC-DC converter with L5964 for automotive applications	L5964	車載用IC評価ボード	ST	AEK-POW-L5964V1 量産中 Digitally controlled DC-DC converter with L5964 for automotive applications
STEVAL-1PS01AJR 量産中	Evaluation board based on ST1PS01AJR 400 mA nano-quiescent synchronous step-down converter	-	電源＆コンバータ･ソリューション用評価ボード	ST	STEVAL-1PS01AJR 量産中 Evaluation board based on ST1PS01AJR 400 mA nano-quiescent synchronous step-down converter
STEVAL-1PS01DJR 量産中	Evaluation board based on ST1PS01DJR 400 mA nano-quiescent synchronous step-down converter	-	電源＆コンバータ･ソリューション用評価ボード	ST	STEVAL-1PS01DJR 量産中 Evaluation board based on ST1PS01DJR 400 mA nano-quiescent synchronous step-down converter
STEVAL-1PS01EJR 量産中	Evaluation board based on the ST1PS01EJR 400 mA nano-quiescent synchronous step-down converter	-	電源＆コンバータ･ソリューション用評価ボード	ST	STEVAL-1PS01EJR 量産中 Evaluation board based on the ST1PS01EJR 400 mA nano-quiescent synchronous step-down converter
STEVAL-1PS02A 量産中	Evaluation board based on ST1PS02AQTR 400 mA nano-quiescent synchronous step-down converter with AUX switch	-	電源＆コンバータ･ソリューション用評価ボード	ST	STEVAL-1PS02A 量産中 Evaluation board based on ST1PS02AQTR 400 mA nano-quiescent synchronous step-down converter with AUX switch
STEVAL-1PS02C 量産中	Evaluation board based on ST1PS02CQTR 400 mA nano-quiescent synchronous step-down converter with AUX switch	-	電源＆コンバータ･ソリューション用評価ボード	ST	STEVAL-1PS02C 量産中 Evaluation board based on ST1PS02CQTR 400 mA nano-quiescent synchronous step-down converter with AUX switch
STEVAL-1PS02D 量産中	Evaluation board based on ST1PS02DQTR 400 mA nano-quiescent synchronous step-down converter with AUX switch	-	電源＆コンバータ･ソリューション用評価ボード	ST	STEVAL-1PS02D 量産中 Evaluation board based on ST1PS02DQTR 400 mA nano-quiescent synchronous step-down converter with AUX switch
STEVAL-ISA043V2 量産中	1.5 A / 3.3 V high frequency synchronous buck converter demonstration board based on the ST1S06	-	DC-DC Converter	ST	STEVAL-ISA043V2 量産中 1.5 A / 3.3 V high frequency synchronous buck converter demonstration board based on the ST1S06
STEVAL-ISA055V1 量産中	0.7 A / 1.2 V synchronous buck converter with enable function based on the ST1S12XX	-	DC-DC Converter	-	STEVAL-ISA055V1 量産中 0.7 A / 1.2 V synchronous buck converter with enable function based on the ST1S12XX
STEVAL-ISA069V1 量産中	3 A / 1.5 MHz step-down synchronous switching regulator based on the ST1S31 in DFN 3x3 package	ST1S31	DC-DC Converter	-	STEVAL-ISA069V1 量産中 3 A / 1.5 MHz step-down synchronous switching regulator based on the ST1S31 in DFN 3x3 package
STEVAL-ISA082V1 NRND	4 A peak 800 kHz fixed-frequency PWM synchronous step-down demonstration board with enable on/off based on the ST1S40IPHR	-	DC-DC Converter	-	STEVAL-ISA082V1 NRND 4 A peak 800 kHz fixed-frequency PWM synchronous step-down demonstration board with enable on/off based on the ST1S40IPHR
STEVAL-ISA094V1 量産中	3 A step-down switching power supply demonstration board based on the L7981 (HSOP8)	-	DC-DC Converter	-	STEVAL-ISA094V1 量産中 3 A step-down switching power supply demonstration board based on the L7981 (HSOP8)
STEVAL-ISA095V1 量産中	Up to 3 A step-down switching regulator based on the ST1S14	ST1S14	DC-DC Converter	ST	STEVAL-ISA095V1 量産中 Up to 3 A step-down switching regulator based on the ST1S14
STEVAL-ISA099V1 量産中	3 A step-down switching demonstration board based on the L7986 in DFN10 package	L7986	DC-DC Converter	-	STEVAL-ISA099V1 量産中 3 A step-down switching demonstration board based on the L7986 in DFN10 package
STEVAL-ISA152V1 量産中	3.3 V/3 A high efficiency step down DC-DC converter (VIN= 4.5 to 60 V) based on the L7987	L7987	DC-DC Converter	-	STEVAL-ISA152V1 量産中 3.3 V/3 A high efficiency step down DC-DC converter (VIN= 4.5 to 60 V) based on the L7987
STEVAL-ISA158V1 量産中	38 V - 2 A synchronous step-down switching regulator evaluation board based on the A6986	A6986	DC-DC Converter	ST	STEVAL-ISA158V1 量産中 38 V - 2 A synchronous step-down switching regulator evaluation board based on the A6986
STEVAL-ISA205V1 量産中	38 V, 2 A synchronous step-down switching regulator evaluation board based on the A6986H	A6986H	車載用IC評価ボード	ST	STEVAL-ISA205V1 量産中 38 V, 2 A synchronous step-down switching regulator evaluation board based on the A6986H
STEVAL-ISA207V1 量産中	3 A step down DC/DC switching regulator (VIN = 4.5 V to 60 V) based on the A7987	A7987	車載用IC評価ボード	ST	STEVAL-ISA207V1 量産中 3 A step down DC/DC switching regulator (VIN = 4.5 V to 60 V) based on the A7987
STEVAL-ISA208V1 量産中	38 V, 3 A synchronous step-down switching regulator evaluation board based on the L6983CQTR	-	DC-DC Converter	ST	STEVAL-ISA208V1 量産中 38 V, 3 A synchronous step-down switching regulator evaluation board based on the L6983CQTR
STEVAL-ISA209V1 量産中	38 V, 3 A synchronous step-down switching regulator evaluation board based on the L6983NQTR	L6983	DC-DC Converter	ST	STEVAL-ISA209V1 量産中 38 V, 3 A synchronous step-down switching regulator evaluation board based on the L6983NQTR
STEVAL-L6981CDR 量産中	38 V, 1.5 A synchronous step-down switching regulator evaluation board based on the L6981CDR	-	電源＆コンバータ･ソリューション用評価ボード	-	STEVAL-L6981CDR 量産中 38 V, 1.5 A synchronous step-down switching regulator evaluation board based on the L6981CDR
STEVAL-L6981NDR 量産中	38 V, 1.5 A synchronous step-down switching regulator evaluation board based on the L6981NDR	-	電源＆コンバータ･ソリューション用評価ボード	-	STEVAL-L6981NDR 量産中 38 V, 1.5 A synchronous step-down switching regulator evaluation board based on the L6981NDR
STEVAL-L6982CDR 量産中	38 V, 2 A synchronous step-down switching regulator evaluation board based on the L6982CDR	-	電源＆コンバータ･ソリューション用評価ボード	ST	STEVAL-L6982CDR 量産中 38 V, 2 A synchronous step-down switching regulator evaluation board based on the L6982CDR
STEVAL-L6982NDR 量産中	38 V, 2 A synchronous step-down switching regulator evaluation board based on the L6982NDR	-	電源＆コンバータ･ソリューション用評価ボード	ST	STEVAL-L6982NDR 量産中 38 V, 2 A synchronous step-down switching regulator evaluation board based on the L6982NDR
STEVAL-L6986IV1 量産中	38 V, 5 W synchronous iso-buck converter evaluation board with dual isolated output based on the L6986I	L6986I	電源＆コンバータ･ソリューション用評価ボード	ST	STEVAL-L6986IV1 量産中 38 V, 5 W synchronous iso-buck converter evaluation board with dual isolated output based on the L6986I
STEVAL-L7983ADJ 量産中	12 V/0.3 A step down DC/DC converter (VIN = 12 to 60 V) based on the L7983PUR regulator	-	電源＆コンバータ･ソリューション用評価ボード	ST	STEVAL-L7983ADJ 量産中 12 V/0.3 A step down DC/DC converter (VIN = 12 to 60 V) based on the L7983PUR regulator
STEVAL-L7983V33 量産中	3.3 V/0.3 A step down DC/DC converter (VIN = 3.5 V to 60 V) based on the L7983PU33R	-	電源＆コンバータ･ソリューション用評価ボード	ST	STEVAL-L7983V33 量産中 3.3 V/0.3 A step down DC/DC converter (VIN = 3.5 V to 60 V) based on the L7983PU33R
STEVAL-L7983V50 量産中	5.0 V / 0.3 A step down DC/DC converter (VIN = 5 to 60 V) based on the L7983PU50R regulator	-	電源＆コンバータ･ソリューション用評価ボード	ST	STEVAL-L7983V50 量産中 5.0 V / 0.3 A step down DC/DC converter (VIN = 5 to 60 V) based on the L7983PU50R regulator

	Resource title	バージョン	Latest update
PDF	AN1768 ADMISSIBLE AVALANCHE POWER OF SCHOTTKY DIODES	1.1	23 Apr 2021	23 Apr 2021 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	06 Jul 2021	06 Jul 2021 AN604 Calculation of conduction losses in a power rectifier 3.2
PDF	AN4021 Calculation of reverse losses in a power diode	1.0	06 Jul 2021	06 Jul 2021 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	06 Jul 2021	06 Jul 2021 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	06 Jul 2021	06 Jul 2021 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	23 Apr 2021	23 Apr 2021 AN5046 Printed circuit board assembly recommendations for STMicroelectronics PowerFLAT packages 4.0
PDF	AN5088 Rectifiers thermal management, handling and mounting recommendations	2.0	06 Jul 2021	06 Jul 2021 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	03 May 2021	03 May 2021 AN533 SCRs, TRIACs, and AC switches, thermal management precautions for handling and mounting 3.6
PDF	AN443 SERIES OPERATION ON FAST RECTIFIERS	2.1	06 Jul 2021	06 Jul 2021 AN443 SERIES OPERATION ON FAST RECTIFIERS 2.1
PDF	AN1542 THE THERMAL RUNAWAY LAW IN SCHOTTKY USED IN OR-ING APPLICATION	1.1	23 Apr 2021	23 Apr 2021 AN1542 THE THERMAL RUNAWAY LAW IN SCHOTTKY USED IN OR-ING APPLICATION 1.1
PDF	AN869 Tj max limit of Schottky diodes	2.2	06 Jul 2021	06 Jul 2021 AN869 Tj max limit of Schottky diodes 2.2

検索履歴

ブックマーク

降圧コンバータ

製品 & ソリューション

すべてのリソース

アプリケーションノート (5 of 18)

Design Notes & Tips (2)

フライヤ (3)

All tools & software

Finder Apps

ST Diode Finder

All Hardware Evaluation Tools

評価ツール

AEK-POW-L5964V1

STEVAL-1PS01AJR

STEVAL-1PS01DJR

STEVAL-1PS01EJR

STEVAL-1PS02A

STEVAL-1PS02C

STEVAL-1PS02D

STEVAL-ISA043V2

STEVAL-ISA055V1

STEVAL-ISA069V1

STEVAL-ISA082V1

STEVAL-ISA094V1

STEVAL-ISA095V1

STEVAL-ISA099V1

STEVAL-ISA152V1

STEVAL-ISA158V1

STEVAL-ISA205V1

STEVAL-ISA207V1

STEVAL-ISA208V1

STEVAL-ISA209V1

STEVAL-L6981CDR

STEVAL-L6981NDR

STEVAL-L6982CDR

STEVAL-L6982NDR

STEVAL-L6986IV1

STEVAL-L7983ADJ

STEVAL-L7983V33

STEVAL-L7983V50