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降压转换器

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工具与软件

硬件评估工具

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主要产品

当DC-DC开关转换器的输出电压低于输入电压（有/无输入-输出隔离）时，采用降压拓扑。阅读更多

我们的产品和解决方案

我们有大量的降压调节器（配集成功率开关）和多相、单相、多输出控制器，提供广泛的特性（包括软启动），以尽量减少浪涌电流，并通过Power-Good（供电正常信号）确保正常的加电顺序。可编程器件也可以帮助设计可根据特定的EMI、EMC、效率和功率密度目标、以及用例进行微调的降压转换器。

我们还开发了一种隔离式单级48V直接到负载点（PoL）谐振转换解决方案，可用于符合Intel VR13和VR12.5规范的CPU或DDR内存。意法半导体还提供一种完全可扩展的解决方案，能够管理高达6个具有动态电池脱落和脉冲跳跃特性的交错并联电池。

此外，我们还提供全套评估与开发工具（包括参考设计），帮助缩短产品上市时间。

全部资源

展开所有类别

	Resource title	版本	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

	Resource title	版本	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

All tools & software

Finder Apps

产品型号	状态	描述	类型	供应商
ST Diode Finder	批量生产	用于安卓和iOS的二极管产品查找应用	Finder Apps	ST	ST Diode Finder 描述: 用于安卓和iOS的二极管产品查找应用

All Hardware Evaluation Tools

评估工具

产品型号	描述	Core product	工具类型	供应商	Sort by: part number
AEK-POW-L5964V1 批量生产	带L5964的数字控制DC-DC转换器，用于汽车应用	L5964	汽车IC评估板	ST	AEK-POW-L5964V1 批量生产带L5964的数字控制DC-DC转换器，用于汽车应用
STEVAL-1PS01AJR 批量生产	基于ST1PS01AJR 400 mA nano静态同步降压转换器的评估板	-	电源和功率转换器解决方案评估板	ST	STEVAL-1PS01AJR 批量生产基于ST1PS01AJR 400 mA nano静态同步降压转换器的评估板
STEVAL-1PS01DJR 批量生产	基于ST1PS01DJR 400 mA nano静态同步降压转换器的评估板	-	电源和功率转换器解决方案评估板	ST	STEVAL-1PS01DJR 批量生产基于ST1PS01DJR 400 mA nano静态同步降压转换器的评估板
STEVAL-1PS01EJR 批量生产	基于ST1PS01EJR 400 mA nano静态同步降压转换器的评估板	-	电源和功率转换器解决方案评估板	ST	STEVAL-1PS01EJR 批量生产基于ST1PS01EJR 400 mA nano静态同步降压转换器的评估板
STEVAL-1PS02A 批量生产	Evaluation board based on ST1PS02AQTR 400 mA nano-quiescent synchronous step-down converter with AUX switch	-	电源和功率转换器解决方案评估板	ST	STEVAL-1PS02A 批量生产 Evaluation board based on ST1PS02AQTR 400 mA nano-quiescent synchronous step-down converter with AUX switch
STEVAL-1PS02C 批量生产	Evaluation board based on ST1PS02CQTR 400 mA nano-quiescent synchronous step-down converter with AUX switch	-	电源和功率转换器解决方案评估板	ST	STEVAL-1PS02C 批量生产 Evaluation board based on ST1PS02CQTR 400 mA nano-quiescent synchronous step-down converter with AUX switch
STEVAL-1PS02D 批量生产	Evaluation board based on ST1PS02DQTR 400 mA nano-quiescent synchronous step-down converter with AUX switch	-	电源和功率转换器解决方案评估板	ST	STEVAL-1PS02D 批量生产 Evaluation board based on ST1PS02DQTR 400 mA nano-quiescent synchronous step-down converter with AUX switch
STEVAL-ISA043V2 批量生产	基于ST1S06的1.5 A / 3.3 V高频同步降压转换器演示板	-	DC-DC Converter	-	STEVAL-ISA043V2 批量生产基于ST1S06的1.5 A / 3.3 V高频同步降压转换器演示板
STEVAL-ISA055V1 批量生产	基于ST1S12XX的0.7 A / 1.2 V同步降压转换器，具有使能功能	-	DC-DC Converter	-	STEVAL-ISA055V1 批量生产基于ST1S12XX的0.7 A / 1.2 V同步降压转换器，具有使能功能
STEVAL-ISA069V1 批量生产	基于ST1S31的3 A / 1.5 MHz同步降压开关稳压器，DFN 3x3封装	ST1S31	DC-DC Converter	-	STEVAL-ISA069V1 批量生产基于ST1S31的3 A / 1.5 MHz同步降压开关稳压器，DFN 3x3封装
STEVAL-ISA082V1 NRND	基于ST1S40IPHR的4 A峰值800 kHz固定频率PWM同步降压演示板，具有使能开/关功能	-	DC-DC Converter	-	STEVAL-ISA082V1 NRND 基于ST1S40IPHR的4 A峰值800 kHz固定频率PWM同步降压演示板，具有使能开/关功能
STEVAL-ISA094V1 批量生产	基于L7981（HSOP8）的3 A降压开关电源演示板	-	DC-DC Converter	-	STEVAL-ISA094V1 批量生产基于L7981（HSOP8）的3 A降压开关电源演示板
STEVAL-ISA095V1 批量生产	基于ST1S14的至高3 A步降开关稳压器	ST1S14	DC-DC Converter	ST	STEVAL-ISA095V1 批量生产基于ST1S14的至高3 A步降开关稳压器
STEVAL-ISA099V1 批量生产	基于L7986（DFN10封装）的3 A降压开关稳压器演示板	L7986	DC-DC Converter	-	STEVAL-ISA099V1 批量生产基于L7986（DFN10封装）的3 A降压开关稳压器演示板
STEVAL-ISA152V1 批量生产	基于L7987的3.3 V/3 A高效降压DC-DC转换器（VIN= 4.5 - 60 V）	L7987	DC-DC Converter	-	STEVAL-ISA152V1 批量生产基于L7987的3.3 V/3 A高效降压DC-DC转换器（VIN= 4.5 - 60 V）
STEVAL-ISA158V1 批量生产	基于A6986的38 V - 2 A同步降压开关稳压器评估板	A6986	DC-DC Converter	ST	STEVAL-ISA158V1 批量生产基于A6986的38 V - 2 A同步降压开关稳压器评估板
STEVAL-ISA205V1 批量生产	基于A6986H的38 V，2 A同步降压开关稳压器评估板	A6986H	汽车IC评估板	ST	STEVAL-ISA205V1 批量生产基于A6986H的38 V，2 A同步降压开关稳压器评估板
STEVAL-ISA207V1 批量生产	基于A7987的3 A降压DC/DC开关稳压器（VIN = 4.5 V至60 V）	A7987	汽车IC评估板	ST	STEVAL-ISA207V1 批量生产基于A7987的3 A降压DC/DC开关稳压器（VIN = 4.5 V至60 V）
STEVAL-ISA208V1 批量生产	38 V, 3 A synchronous step-down switching regulator evaluation board based on the L6983CQTR	-	DC-DC Converter	ST	STEVAL-ISA208V1 批量生产 38 V, 3 A synchronous step-down switching regulator evaluation board based on the L6983CQTR
STEVAL-ISA209V1 批量生产	38 V, 3 A synchronous step-down switching regulator evaluation board based on the L6983NQTR	L6983	DC-DC Converter	ST	STEVAL-ISA209V1 批量生产 38 V, 3 A synchronous step-down switching regulator evaluation board based on the L6983NQTR
STEVAL-L6981CDR 批量生产	38 V, 1.5 A synchronous step-down switching regulator evaluation board based on the L6981CDR	-	电源和功率转换器解决方案评估板	-	STEVAL-L6981CDR 批量生产 38 V, 1.5 A synchronous step-down switching regulator evaluation board based on the L6981CDR
STEVAL-L6981NDR 批量生产	38 V, 1.5 A synchronous step-down switching regulator evaluation board based on the L6981NDR	-	电源和功率转换器解决方案评估板	-	STEVAL-L6981NDR 批量生产 38 V, 1.5 A synchronous step-down switching regulator evaluation board based on the L6981NDR
STEVAL-L6982CDR 批量生产	38 V, 2 A synchronous step-down switching regulator evaluation board based on the L6982CDR	-	电源和功率转换器解决方案评估板	ST	STEVAL-L6982CDR 批量生产 38 V, 2 A synchronous step-down switching regulator evaluation board based on the L6982CDR
STEVAL-L6982NDR 批量生产	38 V, 2 A synchronous step-down switching regulator evaluation board based on the L6982NDR	-	电源和功率转换器解决方案评估板	ST	STEVAL-L6982NDR 批量生产 38 V, 2 A synchronous step-down switching regulator evaluation board based on the L6982NDR
STEVAL-L6986IV1 批量生产	38 V, 5 W synchronous iso-buck converter evaluation board with dual isolated output based on the L6986I	L6986I	电源和功率转换器解决方案评估板	ST	STEVAL-L6986IV1 批量生产 38 V, 5 W synchronous iso-buck converter evaluation board with dual isolated output based on the L6986I
STEVAL-L7983ADJ 批量生产	12 V/0.3 A step down DC/DC converter (VIN = 12 to 60 V) based on the L7983PUR regulator	-	电源和功率转换器解决方案评估板	ST	STEVAL-L7983ADJ 批量生产 12 V/0.3 A step down DC/DC converter (VIN = 12 to 60 V) based on the L7983PUR regulator
STEVAL-L7983V33 批量生产	3.3 V/0.3 A step down DC/DC converter (VIN = 3.5 V to 60 V) based on the L7983PU33R	-	电源和功率转换器解决方案评估板	ST	STEVAL-L7983V33 批量生产 3.3 V/0.3 A step down DC/DC converter (VIN = 3.5 V to 60 V) based on the L7983PU33R
STEVAL-L7983V50 批量生产	5.0 V / 0.3 A step down DC/DC converter (VIN = 5 to 60 V) based on the L7983PU50R regulator	-	电源和功率转换器解决方案评估板	ST	STEVAL-L7983V50 批量生产 5.0 V / 0.3 A step down DC/DC converter (VIN = 5 to 60 V) based on the L7983PU50R regulator

	Resource title	版本	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

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降压转换器

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应用手册 (5 of 18)

Design Notes & Tips (2)

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All tools & software

Finder Apps

ST Diode Finder

All Hardware Evaluation Tools

评估工具

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

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