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Austriamicrosystems introduces an ultra low dropout regulator (LDO), optimized to deliver improved operating times in battery-powered portable equipment such as PDAs, digital cameras, Bluetooth and GPS modules. The devices are designed to extend the talk and standby time of mobile cell phones as a result of its extremely low dropout voltage. The AS13985 LDO regulator is sold in a miniature wafer level chip-scale package (WL-CSP) which means that the silicon itself is placed directly on the PCB. The device features low noise of only 30µVrms between 10Hz and 100kHz. This allows the use of a small and less expensive 1µF ceramic output capacitor. With a supply voltage rejection performance of 60dB at 1kHz and 55dB at 10kHz, the AS13985 perfectly fulfills the noise requirements for mobile phone applications.

Austriamicrosystems