Noise sensitive RF applications such as Power Amplifiers in satellite radios, infotainment equipment, and precision instrumentation require very clean power supplies. The NCP705 is a 500 mA LDO that provides the engineer with a very stable, accurate voltage with ultra low noise and very high Power Supply Rejection Ratio (PSRR) suitable for RF applications. The device doesn't require any additional noise bypass capacitor to achieve ultra-low noise performance. In order to optimize performance for battery operated portable applications, the NCP705 employs dynamic Iq management for ultra-low quiescent current consumption at light-load conditions and great dynamic performance.
特性
优势
Operating Input Voltage Range
2.5V to 5.5V
Available in Fixed Voltage Options
0.8V to 3.5V Please Contact Factory for Other Voltage Options
Ultra-Low Quiescent Current
Typ. 13 uA
Ultra-Low Noise
12 uVrms from 100 Hz to 100 kHz
Very Low Dropout
250 mV typ. at 500 mA Output
±2% Accuracy Over Load/Line/Temperature
High Accuracy Output Voltage
High PSRR
71 dB at 1 kHz
Internal Soft-Start
Limits the Turn-On Inrush Current
Adjustable operation from 0.8V
Easy voltage selection according to customer requirements