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Siliconix LDO regulator has 3-by-3mm footprint

Posted: 17 Dec 2002 ?? ?Print Version ?Bookmark and Share

Keywords:vishay siliconix? si9815? voltage regulator ic? cmos regulator? ldo regulator?

Siliconix Inc. has announced the availability of the Si9815 500mA CMOS LDO regulator, which is available in a thermally enhanced MLP33 PowerPAK package that occupies a footprint of 3-by-3mm - 70 percent smaller than the industry standard SO-8 package.

Designed to prolong battery life in portable devices such as laptops, PDAs, and cellphones, the IC operates from an input of 2V to 6V and has a 150mV dropout. It is available in 10 fixed output voltages from 1.2V to 5V, as well as in adjustable output voltage options.

The device features a noise output of 100?Vrms with a noise bypass capacitor, 1.5 percent output voltage accuracy, 1.1W power dissipation, and a maximum shutdown current of 1?A.

If a capacitor is connected to the device's delay pin, the Si9185's out-of-regulation error flag output pin will generate a delayed power-on-reset signal. Integrated short-circuit and thermal protection ensure reliable operation over the -40C to 85C operating temperature range.

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