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降压转换器(或DC-DC步降开关稳压器)是一种输出稳压比输入电压低的DC-DC转换器。

降压转换器
单片式降压转换器IC可满足任何应用需求

意法半导体的单片式降压(降压)转换器IC具有高达61 V的输入电压能力,以很高的开关频率实现了高达4 A的输出电流。这一全面的IC产品系列包括可满足每一种市场需求的高度专业化产品:

  • 高压技术、高可靠性、耐用性、小型化,适用于工业汽车应用
  • 任何负载下的高效率以及消费类计算机产品所需的高性能

为了增加MTBF(平均无故障时间)和减少外部元件的数量,这些降压稳压器都嵌入了全套保护功能(过流、过压和过热)。

提供了多种封装选项,全都可以实现小型化和高效散热性能。

广泛的降压开关稳压器系列

了解意法半导体为满足广泛的应用需求而推出的各种降压转换器。

低静态电流降压转换器IC

意法半导体的低IQ降压转换器可以长时间待机运行,非常适合任何功率预算严格的应用,如电池供电的设备或符合绿色标准的设备。延长电池寿命,降低您的工业和汽车应用设计的总体功耗。

同步降压转换器IC

适用于高效率的小型解决方案。

异步降压转换器IC

简单就在手边。

工业应用的降压转换器

工业降压转换器
工业用节能型DC-DC降压转换器

高可靠性且稳固耐用的降压转换器,适用于工业和任何需要较宽输入输出电压范围的应用。

查看所有工业用降压转换器

汽车应用的降压转换器

汽车级降压转换器
高性能汽车级DC-DC降压转换器

意法半导体面向汽车应用提供高性能、高度灵活,且符合AEC-Q100标准要求的降压转换器。

查看所有汽车级降压转换器

开始您的设计

降压转换器设计工具

如何选择合适的DC-DC开关稳压器?

降压转换器pdf参考指南

New 400 mA synchronous buck converters, with nano-quiescent current and very high efficiency, push performance beyond limits

Boasting a quiescent current of only 500 nA, ST’s miniaturized ST1PS01 and ST1PS02 step-down converters with digital voltage selection specifically address battery-powered and energy-harvesting applications, thanks also to their high efficiency over a wide range of operating conditions.

The integrated power switch and compensation network allow this new generation of step-down converters to work with only just a few external components.

Evaluation boards are available for both products, to support developers in their designs.

 

New 61 V, 3 A step-down switching regulator for automotive application

Housed in a HTSSOP16-package, the A7987 is a 3 A step-down switching regulator with a wide input-voltage range, making it suitable for 24 V battery-powered applications.

Specifically recommended to design flexible and robust solutions, the A7987 also offers a set of additional functionalities including adjustable current limit, synchronization with a 180° phase shift, and power sequencing.

These key features ensure flexible and stable performance when several voltage rails are powered up in automotive applications such as body infotainment and telematics.

Large selection of step-down DC-DC regulators with synchronous rectification

In the quest for higher efficiency and compact form factor in their DC-DC supply designs, engineers now have a few more allies: the L6985FL6986F and L6986 step-down DC-DC regulators with synchronous rectification and an output current of 0.5 A, 1,5 A and 2 A respectively.
Based on a peak current mode architecture with a p-channel power MOSFET, they feature a selectable low-consumption-mode (LCM burst mode) to increase efficiency at light load, and a low-noise-mode (LNM with fixed PWM switching frequency) for noise-sensitive designs.

An easy-to-use evaluation board (STEVAL-ISA156V1) based on the L6986 regulator is available to help you configure and evaluate application parameters so you can reach higher efficiency, higher power density and lower standby power designs.

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.