Off-Line Switching Regulators simplify power supply designs.

Press Release Summary:



STR-W6250D series is comprised of current-mode PWM ICs that incorporate controller chips made by a high-voltage proprietary BCD process and avalanche-guaranteed MOSFETs. ICs also provide auto-burst mode operation and various functional integrations, including frequency jittering, bias-assist, externally activated shutdown protection, slope compensation, and ac input-independent OCP. These features help reduce external component count.



Original Press Release:



Allegro MicroSystems, Inc. Announces New Off-Line Switching Regulators



Reduce external component count saving space and design time while improving system-level reliability

Worcester, MA - January 11, 2008 - Allegro MicroSystems, Inc. announces a new family of off-line switching regulators targeted at the consumer and industrial markets. Allegro's new STR-W6250D series is composed of current-mode PWM ICs that incorporate both controller chips made by a high-voltage proprietary BCD process and avalanche-guaranteed MOSFETs. These elements allow power supply system designs that are highly reliable and simple, with fewer peripheral components. These ICs also provide auto-burst mode operation, lowering input power requirements at light loads, and improving efficiency over the entire load range and universal input range.

The STR-W6250D series is a higher-output version of our STR-A6200D series, including more functional integrations, such as: frequency jittering for EMI noise reduction, bias-assist, externally activated shutdown protection, slope compensation for continuous mode operation, and AC input-independent OCP to minimize the deliverable output power dependency on the AC input. These features reduce the external component count and save space, cost, and design time while improving system-level reliability.

Allegro's new series of off-line switching regulators is priced below:

- STR-W6251D $1.56
- STR-W6252D $1.65
- STR-W6253D $1.83
- STR-W6253MD $1.83

All devices are priced in quantities of 1,000 and have a 10-12 week typical lead-time to market.

About Allegro

Allegro MicroSystems, Inc. is leader in developing, manufacturing and marketing high-performance power integrated circuits and integrated Hall-effect magnetic sensors. Allegro's innovative solutions serve high-growth applications within the automotive, communications, computer/office automation, consumer and industrial markets. Allegro is headquartered in Worchester, Massachusetts (USA) with design and applications center located in North and South America, Asia, and Europe. Further information about Allegro can be found at www.allegromicro.com .

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