Acquired Electronics360

Electronics and Semiconductors

Linear Voltage Regulator Suits Automotive Apps

09 December 2015

An AEC-Q100 qualified, linear voltage regulator IC from Allegro MicroSystems, LLC has control, diagnostics and protection features that address requirements of automotive applications. Allegro’s A4481 regulates input voltages between 5.25 to 40 V, down to a 5 V ±1% accurate output voltage, and is able to supply up to 50 mA of load current. This device is designed to power sensors, low power microcontrollers and transceivers in interior and underhood automotive control units.

The A4481 linear voltage regulator power automotive systems components.The A4481 linear voltage regulator power automotive systems components.The diagnostic output from the A4481 includes a Power OK (POK) output. Protection features include output protection from a short-to-battery event up to 32 V, for instance in the case of a wiring harness fault. Protection also includes input undervoltage lockout (UVLO), foldback overcurrent protection, output undervoltage and overvoltage protection, and thermal shutdown.

The A4481KLJTR-T device is available in an 8-pin, lead-free SOIC package with exposed pads to enhance thermal dissipation. List price is $0.64 each in quantities of 1,000.



Powered by CR4, the Engineering Community

Discussion – 0 comments

By posting a comment you confirm that you have read and accept our Posting Rules and Terms of Use.
Engineering Newsletter Signup
Get the Engineering360
Stay up to date on:
Features the top stories, latest news, charts, insights and more on the end-to-end electronics value chain.
Advertisement
Weekly Newsletter
Get news, research, and analysis
on the Electronics industry in your
inbox every week - for FREE
Sign up for our FREE eNewsletter
Advertisement

CALENDAR OF EVENTS

Date Event Location
30 Nov-01 Dec 2017 Helsinki, Finland
23-27 Apr 2018 Oklahoma City, Oklahoma
18-22 Jun 2018 Honolulu, Hawaii
Find Free Electronics Datasheets
Advertisement