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What's next on power management?

Posted: 09 Jan 2003 ?? ?Print Version ?Bookmark and Share

Keywords:power management? portable device? portable design? qfn? vcom?

Tunc Doluca

VP, Maxim Integrated Products

Asia has increasingly become the key center for the design of portable equipment, including PDAs, notebook computers, cellphones, and digital cameras. These products have broad markets, both for businesses and consumers, and have become necessary for our mobile lifestyles. Asian designers of portable equipment have been very effective in quickly bringing to market products with longer battery lives, high-resolution color displays, and integration of more sophisticated features in ever-smaller footprints.

Key to making these products competitive in the marketplace is power management. IC companies such as Maxim are providing portable equipment designers with highly integrated power management solutions that streamline the design process. In many cases, all of the power management functions, including supply sequencing and fault protection, can be put on a single, leadless chip, saving significant board space.

For instance, one of Maxim's new power supply management products, designed on our 0.85m BiCMOS process and packaged in a 1mm QFN, includes five power supply outputs and a built-in VCOM buffer to meet all of the power supply requirements of TFT-LCD panels for notebooks. Another new offering from Maxim in the power management area is a chipset for cellphones that includes a linear charger for the Li-ion battery and seven low dropout linear regulators to power all RF and baseband chipsets. Other mixed-signal functions can be integrated into this chipset, including transceivers, real-time clock, dc-dc converters, and serial interface.

Maxim recognizes that a close partnership between the component supplier and designer of portable equipment is essential to completing new designs on schedule and on budget.

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