钰泰ETA5057是噪声敏感应用的理想电源芯片

　　DESCRIPTION

　　ETA5057 is a low-dropout (LDO) low-power linear voltage regulator features high power-supply rejection ratio (PSRR),ultralow-noise, fast start-up, and excellent line and load transient responses. Its PSRR can be as high as 80dB and its noise level can be as low as 30μVRMS ofoutput voltage noise at 2.8V output.Therefore,ETA5057 is an ideal power supply for noise-sensitive applications such as cellphones,CMOS sensors, RF transmissions and audios etc. ETA5057's output voltage is adjustable through external feedback resistors and is housed in SOT353-5 package.

　　FEATURES

　　High PSRR, 80 dB at 10Hz,60dB at 10K Hz

　　Low Noise,30μVRMS

　　Stable With a Wide Range of Ceramic Capacitor larger than 1μF

　　Excellent Load and Line Transient Response

　　Very Low Dropout Voltage

　　350mA output current

　　APPLICATIONS

　　RF power

　　Sensors

　　Audio