LP3981 regulator equivalent, 300-ma ultra-low-dropout cmos voltage regulator.
*1 2.5-V to 6-V Input Range
* 300-mA Output Current
* 60-dB PSRR at 1 kHz
* ≤ 1-μA Quiescent Current When Shut Down
* Fast Turnon Time: 120 μs (typica.
* CDMA Cellular Handsets
* Wideband CDMA Cellular Handsets
* GSM Cellular Handsets
* Portable Informatio.
Performance of the LP3981 device is optimized for battery-powered systems to deliver ultra-low-noise, extremely low dropout voltage, and low quiescent current. Regulator ground current increases only slightly in dropout, further prolonging the batter.
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