这个LDO的PSRR是很高的
Features
200mA RF Low-DropoutRegulator
With Enable
Available in Fixed Voltage Versions from 1.8V to 4.75V and Adjustable (1.22V to 5.5V)
High PSRR (70dB at 10kHz)
Ultralow-Noise (32µVRMS, TPS79328)
Fast Start-Up Time (50µs)
Stable With a 2.2µF Ceramic Capacitor
Excellent Load/Line Transient Response
Very Low Dropout Voltage (112mV at 200mA, TPS79330)
5- and 6-Pin SOT23 (DBV) and NanoStar Wafer Chip Scale (YEQ, YZQ) Packages
APPLICATIONS
RF: VCOs, Receivers, ADCs
Audio
Cellular and Cordless Telephones
Bluetooth®, Wireless LAN
Handheld Organizers, PDAs