SOURCE: Intersil


July 12, 2011 10:00 ET

Intersil Introduces AEC-Q100 Qualified, Automotive Version of Popular Dual Synchronous Step-Down DC/DC Regulator

ISL78228 Set for Broad Range of Secondary Power Automotive Applications Including Infotainment, Camera and System Modules

MILPITAS, CA--(Marketwire - Jul 12, 2011) - Intersil Corporation (NASDAQ: ISIL) has developed an AEC-Q100 qualified version of the ISL8088 -- an industry-leading, high efficiency, dual synchronous step-down DC/DC regulator. The ISL78228 is designed to provide regulated power for use in remote safety cameras, infotainment systems, control modules and many other space-constrained automotive applications.

The device delivers up to 800mA continuous current from each of its two independent outputs. Its 2.75V to 5.5V input voltage range permits powering from common 3.3V and 5.0V automotive supplies. The internal current-mode compensation provides fast transient response and allows for 100% duty cycle operation for low dropout. This also simplifies circuit design by eliminating the need for external compensation components.

The ISL78228 operates at 2.25MHz switching frequency (and can be synchronized up to 4MHz) allowing the use of small, low cost inductors and capacitors. Each channel is optimized for generating an output voltage as low as 0.6V. It also features an integrated 2ms digital soft start and Power Good output. The enable pin facilitates power sequencing and the soft-stop function ensures output capacitors are discharged when switching to shutdown. Its low 30uA quiescent current minimizes standby power consumption. The compact package and high ( > 90%) efficiency makes the ISL78228 an ideal design choice for in-car ultra-compact regulated power applications.

Pricing and Availability
The ISL78228 is available now in a compact 3mm x 3mm 10-pin DFN package with 0.9mm maximum height. Qualified operating temperature range for the ISL78228 is -40 to 105°C. Prices start at $0.99 each in 50k quantities. For more information please visit

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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

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