CATEGORIES

直流-直流开关式转换器

意法半导体的单片式DC-DC开关稳压器支持最高61 V的输入电压,降压转换器能够提供最高6 A的输出电流,开关频率最高2.3 MHz。

DC-DC开关稳压器

 广泛的IC产品组合由高度专业化的产品组成,以满足各种市场和电源管理需求:高压技术,以及工业汽车所需的高可靠性和稳健性,消费应用所需的紧凑性和高效率

这些开关模式电源嵌入了一套完整的保护功能(过流、过电压、过温),以增加MTBF,减少功率转换所需的外部元件数量。提供了多种封装选项,全都可以实现小型化和高散热性能以满足不同应用的要求。

意法半导体还提供独特且完全隔离、共振的单级直接转换,从48 V直接转换到负载点 (PoL),完全符合Intel VR13和VR12.5规范的CPU/DDR,以及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。

 

  

 

开关转换器 (DC-DC)
快速参考指南
技术公告
L3751:6 V至75 V的宽输入电压同步降压控制器
L7983 - 紧凑型设计,60 V@300 mA
DC/DC转换器

用于USB功率输出的可编程降压转换器

STPD01可编程同步降压转换器,适合USB功率传输应用。该器件根据USB PD 3.0规范提供USB功率传输系统所需的电压,最高输出功率可达60 W(20 V,3 A),包括必要的电缆压降补偿电路。

采用QFN24L 3 x 4 mm²封装的STPD01内嵌可编程看门狗以提高整个系统的稳定性和安全性,并提供过电压、过电流和超温保护

可通过I²C接口动态设置不同的输出电压和电流限制值。

可使用评估板,以支持开发人员的设计工作。
STEVAL-2STPD01

38 V 1.5 A / 2 A step-down converters with low quiescent current

The new L6981 and L6982 are  easy -to -use regulators delivering high efficiency capability atacross all loads. The wide input voltage range (3.5 V –- 38V) , makes them also the ideal solution for 24 V industrial bus-powered systems, HVAC power supplies, battery-powered equipment, decentralized intelligent nodes and always-on devices like smart sensors.

Housed in an SO8 package , the L6981 (1.5 A)  and L6982 (2 A) are also based on a peak current mode architecture with internal compensation, to help reduce the overall size and complexity of the end-product designs.

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

STEVAL-L6981CDR ; STEVAL-L6981NDR

STEVAL-L6982CDR ; STEVAL-L6982NDR

60 V 300 mA降压转换器,具有10 uA静态电流

意法半导体的L7983是一款紧凑型同步降压转换器,具有低噪声特性和低功耗模式,能够满足噪声敏感型应用要求,并在轻负载下实现最高效率。

L7983具有宽输入电压范围,可以在12 - 24 V的工业总线上运行,并且具有较大的安全裕度。它也适用于电池供电型应用、工业自动防故障系统、分布式智能节点、家电、机器人和(利用易于使用的低噪声模式的)精确传感应用。

还可以提供基于L7983的电源和转换器解决方案评估板

可处理极端降压比的同步降压控制器

L3751同步降压控制器具有紧凑的尺寸和6 V - 75 V输入电压范围,适合从工业设备到电池驱动的轻型电动汽车的各种应用。

凭借表面可湿的QFN20封装,它还可用于电信和网络设备(通常采用24 V和48 V总线)。

此外,它还提供STEVAL-L3751V12(100 W评估板),帮助设计人员在电源开发过程中加快元件选择。

eDesignSuite

eDesignSuite is a comprehensive set of easy-to-use design-aid utilities ready to help you streamline the system development process with a wide range of ST products.

Power Management Design Center

Thermal-electrical Simulators for Components

Signal Conditioning Design Tool

NFC/RFID Calculators

Choose design tool:
Power Management Design Center

Power Supply Design Tool

SMPS design, by topology, by type and by product
PFC design with analog and digitial control
Supports various PCB configurations
Choose type:
DC/DC
AC/DC
太阳能电池充电器
Power Management Design Center

LED Lighting Design Tool

Handles AC-DC and DC-DC design in common topologies
Displays interactive and annotated schematic
Provides current/voltage graphs, Bode plots, efficiency curves and power-loss data
Choose type:
DC/DC
AC/DC
Power Management Design Center

Digital Power Workbench

Provides a step-by-step optimized design of power section and control loop
Generates the STM32Cube embedded software package for custom applications and allows firmware project generation, compatible with multiple STM32 IDEs
Power Management Design Center

Power Tree Designer

Specify input/output power for each node in the tree
Check for consistency
Design each individual node
Choose design tool:
Thermal-electrical Simulators for Components

AC Switches Simulator

Select ratings and application waveforms
Get junction temperature and blocking voltage graphs
Search and sort suitable devices
Thermal-electrical Simulators for Components

Rectifier Diodes Simulator

Select ratings and application waveforms
Estimate power losses
Search and sort suitable devices
Thermal-electrical Simulators for Components

STPOWER Studio

Supports long mission profiles
Provides power loss and temperature graphs
Helps define heatsink thermal properties
Thermal-electrical Simulators for Components

Twister Sim

Help select the right ViPOWER Automotive power device
Supports load-compatibility, wiring harness optimization, fault condition impact and diagnostic analysis
Supports various PCB configurations
Thermal-electrical Simulators for Components

TVS Simulator

Specify system ratings and surge waveform
Search and sort suitable devices
Thermal-electrical Simulators for Components

Estimate

Build simple schematics and firmware inputs in minutes
Quickly generate reliable estimates of battery life, system power consumption and bill of materials costs
Choose design tool:
Signal Conditioning Design Tool

Active Filters

Handles multi-stage-designs and common topologies
Returns circuit component values
Provides gain, phase and group delay graphs
Low Pass, High Pass and Band Pass
Signal Conditioning Design Tool

Comparators

Handles most common configurations
Returns circuit components values
Provides I/O signal waveforms
Inverting, Non Inverting, Window
Signal Conditioning Design Tool

Low side Current Sensing

Returns circuit component values
Provides current error graphs
Signal Conditioning Design Tool

High side Current Sensing

Provides current error graphs.
Help to select the right High side current sensing and shunt devices.
Choose design tool:
NFC/RFID Calculators

NFC Inductance

Input geometry and substrate properties
Get antenna impedance
NFC/RFID Calculators

UHF Link Budget

Enter forward and reverse link characteristics
The tool returns link budget estimate
NFC/RFID Calculators

NFC Tuning Circuit

Enter antenna parameter and matching target
Select the topology of the matching network
The tool returns component values for the desired design targets