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A7987 61 V automotive step-down converter A7987 61 V automotive step-down converter

Up to 61V, 3A automotive buck converter

Our A7987 step-down switching regulator is built to ensure robustness, flexibility and reliability in harsh environments

Robustness, flexibility and reliability in harsh environments

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Discovery kit with STM32MP157A MPU Discovery kit with STM32MP157A MPU

Two new MPU Discovery kits

Get started with our open-source, mainlined OpenSTLinux distro

Get started with our open-source, mainlined OpenSTLinux distro

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SPC5-L9177A-K02 Electronic Fuel Injection (EFI) reference design SPC5-L9177A-K02 Electronic Fuel Injection (EFI) reference design

Smarter EFI design for greener driving

Power your engine with the new Electronic Fuel Injection (EFI) reference design! This EFI kit includes a full ecosystem of software libraries and demos.

Power your engine using the new Electronic Fuel Injection design!

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Track eScooters and manage your sharing hub

Enhanced mobility tracking with our new TESEO-LIV3 GNSS module

Enhanced mobility tracking with our new TESEO-LIV3 GNSS module

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Converter

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.

Solar Battery Charger

Input Panel Specification

V This option is required. And must be less than or equal to Voc [V]
V This option is required. And must be greater than or equal to Vmp [V]
A This option is required. And must be less than or equal to Isc [A]
A This option is required. And must be greater than or equal to Imp [A]

Output Battery Specification

V This option is required.
A This option is required.

Active Analog Filter

Hz This option is required.
V/V Please input a number from 1 to 1000.

Diodes (Power Schottky & FERD) Smart Selector

LED Driver

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]

LED custom

V This option is required.
A This option is required.
Ω This option is required.

LEDs

This option is required. And must be a whole positive number between 1 and 20.
This option is required. And must be a whole positive number between 1 and 20.

Battery Charger

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.

Antenna Design

mm This option is required.
mm This option is required.

TVS Smart Selector

 

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ST and its partners have an assembled a comprehensive ecosystem to provide a wide range of software tools to support developers.  These include tools for our STM32, STM8 and SPC5 MCU families, as well as tools for Audio ICs, digital power conversion, motor control and a number of simulators. The tools are offered as free downloads from st.com or are available through our distribution partners.

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Featured Technology and Insights

8-channel configurable MOSFET pre-driver
The L9945 with PWM-controlled configurable outputs complies with passenger and commercial vehicle battery requirements (12 and 24 V)
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Keep your transceivers safe from ESD
The fully programmable STEF01 integrates advanced protection features to improve the reliability of industrial control equipment.
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STDRIVE601 eval board with easy MCU interface
Complete 3-phase inverter for 1- or 3-shunt current sensing topologies
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ST's software environment for STM32
A quick overview of our software ecosystem for STM32 including STM32CubeIDE
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New starter kit to discover NFC technology
5 ready-to-use NFC Type 4 and 5 tags to explore the features of ST25TA and ST25TV tag ICs and add NFC to your application.
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Discover our NFC iOS apps and tags in action
A quick demo of ST25 iOS apps: NFC Tap for consumer engagement and NFC Sensor for Smart Tracking Systems. Source code available.
Watch now
IEEE 802.3bt compliant Power Over Ethenet (PoE) IEEE 802.3bt compliant Power Over Ethenet (PoE)

New PoE supply reference designs

Wide range of IEEE 802.3bt compliant Power over Ethenet solutions

Wide range of IEEE 802.3bt compliant Power over Ethenet solutions

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TruST25™ digital signature TruST25™ digital signature

TruST25™ digital signature

Ensure device authenticity from factory to consumer

Ensure device authenticity from factory to consumer

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Upcoming Events & Seminars

ST Technology Tour 2019

07 Mar - 03 Dec, 2019 | US/Canada

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STM32MP1 microprocessor hands-on workshop for developers

18 Jun - 23 Oct, 2019 | EMEA

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Secure Bluetooth pairing with NFC webinar

24 Jul - 24 Jul, 2019 | Online online event

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ST Partner Summit 2019

11 Sep - 11 Sep, 2019 | Santa Clara, USA

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STM32 PSU/PFC design workshop

17 Sep - 20 Sep, 2019 | Santa Clara, USA

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Latest from ST

Dual-Interface Secure Microcontroller from STMicroelectronics Boosts Safety and Convenience in Contactless Banking and e-Identification Applications 
Jul 17, 2019
Dual-Interface Secure Microcontroller from STMicroelectronics Boosts Safety and Convenience in Contactless Banking and e-Identification Applications 
Featuring the latest 40nm Flash process as well as enhanced RF technologies, the STMicroelectronics ST31P450 dual-interface secure microcontroller delivers exceptional robustness and performance for contactless applications in banking, identity, transportation, and pay-television.
Read more
embOS: The RTOS in Billions of Devices and Its Optimizations for STM32
Jul 10, 2019
embOS: The RTOS in Billions of Devices and Its Optimizations for STM32
embOS is a real-time operating system from SEGGER, a member of the ST Partner Program, that runs on all STM32 microcontrollers and is currently in billions of devices, all microarchitectures combined.
Read more
STMicroelectronics Teams with Arrow Electronics to Provide Electronic Fuel-Injection Reference Design Compliant with New Emission Regulation for Small Engines
Jul 17, 2019
STMicroelectronics Teams with Arrow Electronics to Provide Electronic Fuel-Injection Reference Design Compliant with New Emission Regulation for Small Engines
To help the automotive industry meet the upcoming emissions regulations for single- and twin-cylinder gasoline engines, STMicroelectronics, with Arrow Electronics, has released a complete reference design ECU (Electronic Control Unit) for electronic fuel-injection (EFI).
Read more
Unison RTOS for STM32 at the Crossroads of Hardware and Software
Jul 09, 2019
Unison RTOS for STM32 at the Crossroads of Hardware and Software
When designing an embedded system, choosing the right software environment is as important as the choice of microcontroller, which is why we work very hard alongside industry leaders like RoweBots, a Canadian company famous for its Unison Real Time Operating System (RTOS).
Read more
600V Three-Phase Gate Driver with Smart Shutdown from STMicroelectronics Enhances Performance and Safety in Industrial Applications
Jul 16, 2019
600V Three-Phase Gate Driver with Smart Shutdown from STMicroelectronics Enhances Performance and Safety in Industrial Applications
The STMicroelectronics STDRIVE601 3-phase gate driver for 600V N-channel power MOSFETs and IGBTs provides state-of-the-art ruggedness against negative voltage spikes down to -100V and responds to logic inputs in a class-leading 85ns.
Read more
STM32L4 and STM32H7 in a Solar Car Unveiled in Canada and Racing in Australia
Jul 04, 2019
STM32L4 and STM32H7 in a Solar Car Unveiled in Canada and Racing in Australia
Last week, the Blue Sky Solar Racing team, made of undergraduate students from the University of Toronto, unveiled Viridian, their solar car that uses numerous STM32 microcon trollers. 
Read more
Jul 15, 2019
STMicroelectronics Announces Status of Common Share Repurchase Program
STMicroelectronics N.V. (the “Company” or “STMicroelectronics”) , a global semiconductor leader serving customers across the spectrum of electronics applications, announces full details of its common share repurchase program (the “Program”) disclosed via a press release dated November 5, 2018. The Program was approved by a shareholder resolution dated May 31, 2018 and by the supervisory board.
Read more
Nomination of the LSM6DSOX, First Inertial Sensor with Machine Learning
Jun 28, 2019
Nomination of the LSM6DSOX, First Inertial Sensor with Machine Learning

The ST Foundation’s mission is primarily to develop, coordinate and sponsor projects that employ the use of modern sciences and high technologies to promote the fight against the Digital Divide, identifying informatics illiteracy around the world, notably in less fortunate communities.


STM32 in the Sky is a high altitude ballooning (HAB) contest that will take place in the south of France on June 11, to celebrate the 12th anniversary of the STM32 family of microcontrollers.

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STMicroelectronics Strengthens STM32 Microcontroller Ecosystem with MadeForSTM32 Quality Label
Jul 11, 2019
STMicroelectronics Strengthens STM32 Microcontroller Ecosystem with MadeForSTM32 Quality Label
STMicroelectronics (NYSE: STM), a global semiconductor leader serving customers across the spectrum of electronics applications, is further increasing the market appeal of its STM32* microcontroller family by launching the MadeForSTM32** label for qualified, reviewed, and approved products from ST Partners in the development ecosystem.
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An STM32 Recognizing a Salad at MWC19 Shanghai
Jun 27, 2019
An STM32 Recognizing a Salad at MWC19 Shanghai
The Mobile World Congress Shanghai opened its door on June 26th and ST is showcasing its latest solutions enabling IoT and Smart Driving . The main focus of this MWC19 in Shanghai is 5G, the Internet of Things, artificial intelligence, and big data. The event takes place at the New International Expo Centre, but for those who can’t make it, here’s a little tour of the ST booth (N1.D85) with some of its main demos and displayed that we organized around six major attractions: Security, Automotive, Sensor, AI and Processing, Connectivity, Analog and Power.
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Robust, Low-Power Automotive Accelerometer from STMicroelectronics Adds Durability to Secure Remote Key Fobs
Jul 09, 2019
Robust, Low-Power Automotive Accelerometer from STMicroelectronics Adds Durability to Secure Remote Key Fobs
The STMicroelectronics AIS2DW12 automotive accelerometer makes Passive Keyless Entry (PKE) radio fobs tough enough to survive the inevitable drops and scrapes in a lifetime of use. Also featuring ultra-low power consumption, the accelerometer adds practicality to the convenience and superior theft resistance that comes with motion awareness.
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V2X on Telemaco3P and SOM-301, The Hardware and Software Advantages
Jun 24, 2019
V2X on Telemaco3P and SOM-301, The Hardware and Software Advantages
We are announcing at  MWC Shanghai 2019  a collaboration with  Unex , a Taiwanese company that specializes in V2X (Vehicle-to-Everything), and recommend their  SOM-301  System-on-Module for our  Telemaco3P Modular Telematics Platform (TC3P-MTP) . It was essential for us to ensure that engineers and developers looking to create a comprehensive and compliant V2X application know what to get to save time and focus on building their best product.
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Jul 08, 2019
STMicroelectronics Announces Status of Common Share Repurchase Program
STMicroelectronics N.V. (the “Company” or “STMicroelectronics”) , a global semiconductor leader serving customers across the spectrum of electronics applications, announces full details of its common share repurchase program (the “Program”) disclosed via a press release dated November 5, 2018. The Program was approved by a shareholder resolution dated May 31, 2018 and by the supervisory board.
Read more
MadeForSTM32, The New Label for Excellent Software on STM32 MCUs
Jun 11, 2019
MadeForSTM32, The New Label for Excellent Software on STM32 MCUs

We just launched MadeForSTM32™, a new label destined to single out software solutions that will significantly enhance the experience of engineers and designers building applications on our STM32 microcontrollers.

 

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Jul 03, 2019
STMicroelectronics Announces Timing for Second Quarter 2019 Earnings Release and Conference Call
STMicroelectronics (NYSE: STM) , a global semiconductor leader serving customers across the spectrum of electronics applications, announced that it will release second quarter 2019 earnings before the opening of trading on the European Stock Exchanges on Thursday July 25, 2019.
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