Low Noise Block Regulator targets set top boxes and LCD TVs.

Press Release Summary:




Housed in 4 x 4 mm TQFN/MLP-20 package, Model A8303 utilizes small ceramic capacitors within boost regulator control instead of electrolytic units, making device suitable for LCD TV designs. IC combines integrated boost MOSFET, current sensing, and compensation. Resistor-programmed output current limit minimizes boost inductor/diode size. With key output voltage setting of 15.6 V, regulator accommodates Japan-specific design requirements.



Original Press Release:



Allegro MicroSystems, Inc. Announces New Addition to their Family of Regulators for Satellite Receivers and LCD TV "Combo" Designs



Small Ceramic-Cap-Based Solution Adds Key Voltage Needed for Japan Market

Worcester, MA - - Allegro MicroSystems, Inc. expands their family of Low Noise Block Regulators (LNBRs) designed for satellite receivers in Set Top Boxes and LCD TVs. Allegro's A8303 is a single channel LNBR that utilizes small ceramic capacitors (instead of electrolytic) within the boost regulator control. The end result is a lower-profile solution that is a key requirement in LCD TV designs. Furthermore, the device can provide a key output voltage setting (15.6 V) to accommodate Japan-specific design requirements.

Allegro's latest device offers industry-leading internal protection and robustness, an integrated boost MOSFET, current sensing, and compensation which simplifies the design and minimizes components and PCB size. The A8303 has a low supply current to save energy, high level of diagnostics, and a resistor-programmed output current limit to minimize the boost inductor/diode size and costs.

The A8303SESTR-T is available in a 4 x 4 TQFN/MLP-20 package and is priced at $1.42 in quantities of 1,000.

Allegro MicroSystems, Inc. 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.

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