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Voltage Regulators provide single LNB supply and control.

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Voltage Regulators provide single LNB supply and control.
Voltage Regulators provide single LNB supply and control.

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December 23, 2013 - Generation 5 A8300 and A8300-1 are fully integrated linear and switching voltage regulators that provide power and interface signals to LNB down-converter via coaxial cable. While A8300 is optimized for low-profile ceramic boost capacitors, A8300-1 is designed for use with electrolytic capacitors. For DiSEqC™ communication, ICs provide internal 22 kHz tone gated with control pin or can accept external 22 kHz through same pin. Featrues also include sleep pin, Early Power Failure function, and IC™-compatible interface.

Original Press Release

Allegro Microsystems, Inc.
115 N.E. Cutoff, P.O. Box 15036
Worcester, MA, 01615
USA



Allegro Microsystems, LLC Announces New Single LNB Supply and Control Voltage Regulators


Designed with Expanded Control and Enhanced Diagnostic Features

Worcester, MA – Allegro MicroSystems, LLC – Allegro MicroSystems, LLC adds to its extensive portfolio of low noise block regulators (LNBRs) designed for satellite receivers in Set Top Boxes and LCD TVs. Allegro’s “Generation 5” A8300 and A8300-1 are fully integrated linear and switching voltage regulators that are specifically designed to provide the power and the interface signals to an LNB down-converter via coaxial cable.

The A8300 is optimized for low-profile ceramic boost capacitors, while the A8300-1 is designed for use with lower cost electrolytic capacitors. For DiSEqC™ communication the ICs provide an internal 22-kHz tone that is gated with a control pin, or can accept an external 22-kHz through this same pin. In addition, these devices have integrated tone detection capability for full two-way DiSEqC™ communications, as well as an integrated gate drive for the filter bypass FET.

A “sleep” pin is available to maximize power savings and to quickly shut down the device if needed, without using IC™ control. The devices also offer an Early Power Failure (EPF) function, which helps to verify the status of the 12 V rail as well as initiate shutdown routines. The IC™- compatible interface provides control capabilities for complex system requirements, as well as diagnostic capabilities for system fault reporting.

Allegro’s A8300SESTR-T and A8300SESTR-1-T are supplied in a 4 mm 4 mm, 24-contact, lead-free (Pb), QFN package (suffix ES), with 100% matte tin plated leadframe. Both devices are priced at $1.30 in quantities of 1,000.

Allegro MicroSystems, LLC is a leader in developing, manufacturing and marketing high-performance semiconductors. Allegro's innovative solutions serve high-growth applications within the automotive market, with additional focus on office automation, industrial, and consumer/communications solutions. Allegro is headquartered in Worcester, Massachusetts (USA) with design, applications, and sales support centers located worldwide. Further information about Allegro can be found at www.allegromicro.com.

Contact information:
Stephanie Fennelly
Allegro MicroSystems
P.O. BOX 15036
Worcester, MA 16150036
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