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降压转换器

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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。

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。

降压调节器电路图

buck converter circuit diagram

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应用手册 (5 of 18)

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AN1768 ADMISSIBLE AVALANCHE POWER OF SCHOTTKY DIODES 1.1
24 Mar 2020
24 Mar 2020
AN1768 ADMISSIBLE AVALANCHE POWER OF SCHOTTKY DIODES 1.1
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
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
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
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
AN4381 Current sharing in parallel diodes 1.0
24 Mar 2020
24 Mar 2020
AN4381 Current sharing in parallel diodes 1.0
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
AN1453 NEW FAMILY OF 150V POWER SCHOTTKY 1.1
24 Mar 2020
24 Mar 2020
AN1453 NEW FAMILY OF 150V POWER SCHOTTKY 1.1
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
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
AN4191 Power MOSFET: Rg impact on applications 1.2
07 Jan 2019
07 Jan 2019
AN4191 Power MOSFET: Rg impact on applications 1.2
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
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
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
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
AN443 SERIES OPERATION ON FAST RECTIFIERS 2.1
24 Mar 2020
24 Mar 2020
AN443 SERIES OPERATION ON FAST RECTIFIERS 2.1
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
AN869 Tj max limit of Schottky diodes 2.2
24 Mar 2020
24 Mar 2020
AN869 Tj max limit of Schottky diodes 2.2
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Design Notes & Tips (2)

Resource title
Latest update
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
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

宣传册 (3)

Resource title
Latest update
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
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
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

选型指南 (1)

Resource title
Latest update
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

    • 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

      		 查找器App ST
      ST Diode Finder

      描述:

      用于安卓和iOS的二极管产品查找应用

转换器

Input

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

Output Power

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