DC to DC Power Supplies (Converters)
Automotive Grade Buck Regulators have 4.7-36 V input range.
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Press Release Summary:
Model A8582 supplies load current of at least 2 A, and A8583 supplies current of 3.5 A, while both regulate input voltages from 4.7-36 V down to output voltages as low as 0.8 V. Available in 16-pin TSSOP package with exposed pad for thermal dissipation, they incorporate low resistance, high-side, N-channel MOSFET. Units include VIN under voltage lockout, cycle-by-cycle over current protection, hiccup mode short-circuit protection, over voltage protection, and thermal shutdown.
Original Press Release:
Allegro MicroSystems, Inc. Announces New Automotive Grade Buck Regulators
Robust Buck Regulators with Wide Input Voltage Range
Worcester, MA - Allegro MicroSystems, Inc. announces two new robust automotive grade buck regulators with high switching frequency and output current, each integrating a low resistance, high-side, N-channel MOSFET. Allegro's A8582/A8583 devices incorporate current-mode control to provide excellent loop stability and transient response. These new devices are targeted at the automotive, telecommunications and networking markets.
The A8582/83 devices utilize external compensation to accommodate a wide range of power components and optimize transient response without sacrificing stability. Both devices regulate input voltages from 4.7 V to 36 V down to output voltages as low as 0.8 V, and are able to supply load current of at least 2 A (A8582) or 3.5 A (A8583).
Protection features include VIN under voltage lockout (UVLO), cycle-by-cycle over current protection (OCP), hiccup mode short-circuit protection (HIC), over voltage protection (OVP), and thermal shutdown (TSD). In addition, the A8583 provides unique missing diode (D1) protection, open-circuit, adjacent pin short-circuit, and short-to-ground protection at every pin to satisfy the most demanding applications.
The A8582/A8583 devices are available in a 16-pin TSSOP package with exposed pad for enhanced thermal dissipation and are lead (PB) free with 100% matte tin plated lead frames.
The A8583KLPTR-T is priced at $1.54 and the A8582KLPTR-T is priced at $1.39 in quantities of 1,000.
About Allegro
Allegro MicroSystems, Inc. is a leader in developing, manufacturing and marketing high-performance power and Hall-effect sensor IC's. Allegro's innovative solutions serve high-growth applications within the automotive, communications, computer/office automation, consumer and industrial markets. Allegro is headquartered in Worcester, Massachusetts (USA) with design and applications centers located in North and South America, Asia, and Europe. Further information about Allegro can be found at www.allegromicro.com.
Contact information: Stephanie Fennelley, Allegro MicroSystems, 115 Northeast Cutoff, Worcester, MA 01606
