Power Integrations Expands Package Options For Size Sensitive Applications

October 6, 1997
TOPSwitch(R)-II Available in Surface Mount Package

Sunnyvale, Calif. -- Oct. 6, 1997 -- Power Integrations, Inc., a leading provider of low cost power conversion integrated circuits, announces the availability of surface mount package options for its TOPSwitch-II family. The TOP221 through TOP224, which provide switching power supply solutions up to 30W, are now available in an 8-pin plastic surface mount package.


The TOPSwitch-II family was introduced earlier this year and offers increased power handling at lower costs than earlier solutions. Applications that are well suited to the new surface mount versions include cellular phone chargers, stand-by power supplies and wall adapters.

The new surface mount packages allow system integrators to build power supplies in an even smaller form factor while simplifying manufacturing. With the TOP223G, a 7W switch mode power supply adapter can be built to occupy as little as 54 cubic centimeters. At this size, a TOPSwitch based adapter for a computer peripheral is three times smaller and four times lighter than its equivalent linear wall adapter. Adapters this small no longer block multiple wall sockets.

The TOP221-224G devices utilize TOPSwitch technology, which integrates a 700V power MOSFET with a PWM and control circuitry on the same die. Integration of these components into a single chip allows customers to create a low cost, simple solution for switching power supplies. Using a TOP224G, power supplies with a 100/115/230VAC input can provide up to 30W of output power (20W from a universal input, 85 - 265 VAC).


The TOP221G-224G devices are currently in production. At 10,000 piece quantities, prices range from $0.98 to $1.52. Tape and reel is available upon request. Samples are available through an authorized Power Integrations sales representative.

Power Integrations, Inc. is a leading manufacturer of innovative power conversion integrated circuits for use in off-line AC to DC, high voltage DC to DC, telecommunications and motor control applications. For more information, visit the company's web site at: www.powerint.com or contact the company at 477 North Mathilda Ave., Sunnyvale, CA 94086. Phone: (408) 523-9200. Fax: (408) 523-9300.

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