Available at 300 mA LDO, the NCP703 provides engineers with very stable, precise voltage, ultra-low noise and very high power supply rejection ratio (PSRR) for RF applications. Because noise-sensitive RF applications, such as power amplifiers in satellite radios, infotainment devices, and precision instruments, require very clean power sources.
The device does not require any additional noise bypass capacitors to achieve ultra-low noise performance. To optimize the performance of battery-operated portable applications, the NCP703 employs dynamic Iq management to achieve ultra-low static current consumption and excellent dynamic performance under light load conditions.
Pin definition
Schematic diagram of typical application
Simplified schematic diagram
Features
● Working input voltage range: 2.0V ~ 5.5V
● Fixed voltage options available :0.8 to 3.5V
● Contact factory for other voltage options
● 12 Type A ultra-low static current
● Ultra-low noise :100hz to 100khz 13 VRMS
● Very low voltage :180 millivolts typical at 300 MA
● ±2% accuracy over load/line/temperature
● High PSRR: 68 dB at 1 kHz
● Internal soft start limits opening surge current
● Hot stop and current limit protection
● Stable 1f ceramic output capacitor
● Support for TSOP−5 and XDFN 1.5 x 1.5 mm package
● Active output discharge of quick switch
● These are lead-free devices
Applications
● PDAs, Mobile Phones, GPS, Smartphones
● Wireless Handsets, Wireless LAN, Bluetooth, Zigbee
● Portable Medical Equipment
● Other Battery Powered Applications
