NCP705

NCP705 LDO Regulator - Ultra-Low Quiescent Current, IQ 13 mA, Ultra-Low Noise 500 mA Noise sensitive RF applications such as Power Amplifiers in satellite radios, infotainment equipment, and precision instrumentation require very clean power supplies. The NCP705 is 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. Features Operating Input Voltage Range: 2.5 V to 5.5 V Available − Fixed Voltage Option: 0.8 V to 3.5 V Available − Adjustable Voltage Option: 0.8 V to 5.5 V−VDROP Reference Voltage 0.8 V Ultra−Low Quiescent Current of Typ. 13 mA Ultra−Low Noise: 12 mVRMS from 100 Hz to 100 kHz Very Low Dropout: 230 mV Typical at 500 mA ±2% Accuracy Over Load/Line/Temperature High PSRR: 71 dB at 1 kHz Internal Soft−Start to Limit the Turn−On Inrush Current Thermal Shutdown and Current Limit Protections Stable with a 1 mF Ceramic Output Capacitor Active Output Discharge for Fast Turn−Off These are Pb−Free Devices Typical Applications PDAs, Mobile Phones, GPS, Smartphones Wireless Handsets, Wireless LAN, Bluetoot...