LP3981ILD-3.3/NOPB Datasheet PDF - TI

●The LP3981ILD-3.3/NOPB is a 3.3V fixed output ultra-low-dropout (LDO) CMOS Linear Regulator optimized for battery-powered systems to deliver ultra-low-noise and low quiescent current. Regulator ground current increases only slightly in dropout, further prolonging the battery life. Power supply rejection is better than 60dB at low frequencies. This high power supply rejection is maintained down to lower input voltage levels common to battery-operated circuits.

● 60dB PSRR at 1kHz

● 120µs Fast turn-ON time with CBYPASS = 0.01µF

● 35µVrms Output noise over 10Hz to 100kHz

● Logic controlled enable

● Stable with ceramic and high-quality tantalum capacitors

● Thermal shutdown and short-circuit current limit

● Green product and no Sb/Br