onsemi NCP703MX18TCG

Noise sensitive RF applications such as Power Amplifiers in satellite radios, infotainment equipment, and precision instrumentation require very clean power supplies. The NCP703 is 300 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 NCP703 employs dynamic Iq management for ultra−low quiescent current consumption at light−load conditions and great dynamic performance.

• Operating Input Voltage Range: 2.0 V to 5.5 V
• Available in Fixed Voltage Options: 0.8 to 3.5 V
• Ultra−Low Quiescent Current of Typ. 12 μA
• Ultra−Low Noise: 13 μVRMS from 100 Hz to 100 kHz
• Very Low Dropout: 180 mV Typical at 300 mA
• ±2% Accuracy Over Load/Line/Temperature
• High PSRR: 68 dB at 1 kHz
• Internal Soft−Start to Limit the Turn−On Inrush Current
• Thermal Shutdown and Current Limit Protections
• Stable with a 1 μF Ceramic Output Capacitor
• Available in TSOP−5 and XDFN 1.5 x 1.5 mm Package
• Active Output Discharge for Fast Turn−Off
• These are Pb −Free Devices

• PDAs, Mobile Phones, GPS, Smartphones
• Wireless Handsets, Wireless LAN, Bluetooth, Zigbee
• Portable Medical Equipment
• Other Battery Powered Applications