Allegro MicroSystems, LLC Introduces New Wide Input Voltage 3 A Synchronous Buck Regulator IC

High Output Current with Superior Loop Stability and Desirable Transient Response

July 28, 2015

Product Image

Worcester, MA – Allegro MicroSystems, LLC introduces a new high output current synchronous buck regulator IC that integrates low RDSon high-side and low-side N-channel MOSFETs. Allegro’s A8654 incorporates PWM current mode control to provide simple compensation, excellent loop stability and fast transient response. The A8654 utilizes external compensation to accommodate a wide range of power components to achieve both excellent loop stability and desirable transient response. This new buck regulator IC is targeted at the automotive, industrial and instrumentation markets with typical end applications to include infotainment and GPS systems, automobile audio and camera systems, home audio, and industrial systems.

This new device regulates nominal input voltages from 4.0 V to 36 V and remains operational when VIN drops as low as 2.6 V. When the input voltage approaches the output voltage, the duty cycle is maximized to maintain the output voltage. The A8654 is able to provide a 3 A steady state load current. Key features include externally set soft-start time, an external compensation network for power train optimization, an EN input to enable VOUT, a SYNC/FSET input to synchronize or set the PWM switching frequency, and a NPOR output validated by the output voltage.

Protection features include VIN Under-voltage Lockout (UVLO), cycle-by-cycle Over Current protection, hiccup mode short-circuit protection, Overvoltage protection, and thermal shutdown. The A8654 provides open-circuit, adjacent pin short-circuit, and short-to-ground protection at every pin to satisfy the most demanding automotive and non-automotive applications.

The maximum junction temperature is 150°C. The A8654 device is available in a 16-pin eTSSOP package with exposed pad for enhanced thermal dissipation. It is lead (Pb) free, with 100% matte tin lead frame plating.



Sobre Allegro

Allegro Microsystems, LLC es una empresa líder en el desarrollo, fabricación y comercialización de semiconductores de alto rendimiento. Las soluciones innovadoras de Allegro son útiles para aplicaciones de alto crecimiento dentro del mercado de la automoción, con enfoque adicional en la automatización de oficinas, industrial y soluciones de comunicaciones/consumo. Allegro tiene su sede en Worcester, Massachusetts (EE.UU.) con centros de diseño, aplicaciones y de soporte de ventas ubicados en todo el mundo. Más información sobre Allegro se puede encontrar en www.allegromicro.com

Allegro Microsystems Europa, con sede en Chertsey, Reino Unido, es la oficina operativa de ventas y comercialización europea, y opera una red de representantes y distribuidores en toda Europa. Allegro cuenta con centros técnicos y de marketing en Heidelberg y Hinterzarten en Alemania. Allegro también dispone de un centro de ingeniería de diseño en el centro de Edimburgo, en Escocia y un centro técnico y de marketing en Annecy en Francia.


Contactos de marketing:

Allegro MicroSystems Europe Ltd.
Tel: +33 (0) 4 50512359
Fax: +33 (0) 4 505 12083 

Email: allegroeurope@allegromicro.com
www.allegromicro.com

 

 

 

.

Copyright © 2017 Allegro MicroSystems, LLC

Sitemap  |  Privacy Policy  |  Contact Webmaster

Follow us on: LinkedIn YouTube Google+ Follow Allegro on Twitter

Careers   |   Contact Sales   |   Home   |   Legal   |   Quality & Environment   |   Request Samples