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Siliconix LDO regulator offers 150mV dropout

Posted: 23 Jan 2003 ?? ?Print Version ?Bookmark and Share

Keywords:vishay siliconix? si9185? ldo voltage regulator? laptop voltage regulator? voltage regulation?

The Si9185 500mA CMOS LDO regulator from Siliconix Inc. features a dropout voltage of 150mV and is packaged in a 3-by-2mm MLP33 PowerPAK package, making it suitable for use in portable electronic devices such as laptops, PDAs, digital cameras, and smartphones.

The device is specified for input voltages from 2V to 6V and is available in 10 fixed voltage options ranging from 1.2V to 5V, as well as in adjustable output voltage options. The device features noise output of 100mVrms with a noise bypass capacitor, 1.5 percent output voltage accuracy, 1.1W power dissipation, and a maximum shutdown current of 1mA.

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 temperature range.





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