Press Releases
Intersil's Dual Synchronous DC/DC Regulator is AEC-Q100 Qualified for Automotive Applications

ISL78228 Delivers Dual 800mA Outputs, Switches at 2.25MHz for High Density

Milpitas, CA - October 20, 2011 - Intersil Corporation (NASDAQ Global Select: ISIL), today introduced a space-saving, AEC-Q100-qualified dual synchronous step-down DC/DC regulator featuring a 2.25MHz switching frequency to minimize solution size.

The ISL78228 dual step-down DC/DC regulator provides two independent 800mA outputs. Its 3mm x 3mm package and 2.25MHz switching frequency enables very small power solutions for a variety of space-constrained automotive and industrial applications. A 2.75V to 5.5V input voltage range permits powering from common 3.3V or 5V automotive module supply rails. Internal current-mode compensation provides fast transient response, allowing 100% duty cycle for low dropout and eliminates the need for external compensation components.

Each channel has an independent enable pin and output voltage programming down to 0.6V. Built-in 2ms digital soft-start minimizes inrush current, while the device's low 30uA quiescent current minimizes standby power consumption.

The ISL78228 is AEC-Q100 qualified and fully TS16949 compliant, and is specified for the full -40 degrees C to 105 degrees C operating temperature range.

Features and Specifications

• Dual 800mA outputs with independent controls
• 2.75V to 5.5V input voltage range
• Typical 95% Efficiency (5Vin, 3.3Vout at 250mA)
• 2.25MHz switching frequency
• Internal compensation miinimizes external components
• Internal 2ms digital soft-start and Power Good flag
• Overcurrent protection and thermal shutdown
• AEC-Q100 qualified and TS16949 compliant

Pricing and Availability
The ISL78228 is available in a 3mm x 3mm 10-pin exposed pad DFN package with a maximum height of just 0.9mm. Pricing is $0.53 each in 50,000-unit quantities. For more information please visit http://www.intersil.com/products/deviceinfo.asp?pn=ISL78228

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About Intersil
Intersil Corporation is a leader in the design and manufacture of high-performance analog, mixed signal, and power management semiconductors. The Company's products address some of the fastest growing markets within the communications, computing, consumer and industrial industries. For more information about Intersil or to find out how to become a member of our winning team, visit the Company's web site and career page at www.intersil.com.

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