San Jose, Calif—Micrel says its MIC2285 is the industry’s first 8-MHz, 500-mA synchronous buck regulator for portable applications. As such, the regulator, working off a 2.7- to 5.5-volt input, is suited for space-sensitive applications including ultra-thin cell phones, PDAs, GPS systems, digital cameras, and portable media players.
"Today’s portable applications continue to demand increasingly smaller solution sizes. Cell phone manufacturers in particular, are competing with each other to provide the consumer with the sleekest phones while increasing functionality at the same time," noted Ralf Muenster, director of marketing for power products. "By using a 470 nH chip inductor, Micrel offers designers the only step-down regulator that enables a sub-1 mm height solution."
Besides its small size, the MIC2285 also offers ultra-low noise and fast transient response in light load conditions (LDO mode, versus the PFM mode widely used in other regulators). At full loads, it offers the efficiency of a PWM buck regulator.
Click here to access the product the datasheet. The MIC2285, in a 10-pin 3-by-3 mm MLF package and rated for operation over –40 to +125°C (junction temperature), is priced starting at $1.50 each in 1k quantities.
Micrel, 1-408-944-0800, www.micrel.com