Energy Efficient Innovations

Product Overview  


For complete documentation, see the data sheet.

Printed On: 7/11/2015

NCP705: Voltage Regulator, LDO, Ultra Low Noise, Ultra Low Iq, 500 mA

Product Description
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.
Features   Benefits
     
  • 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
  • Thermal Shutdown and Current Limit Protections
   
Selected Electrical Specifications

Product Compliance Status Description Output Polarity VO (V) IO Typ (A) VI Max (V) VDO Typ (V) Iq Typ (mA) PSRR (dB) Noise (µVrms) Package Type
 Pb-free 
 Halide free 
 Active     Voltage Regulator, LDO, Ultra Low Noise, Ultra Low Iq, 500 mA, 1.8V, WDFN6   Single   Positive   1.8   0.5   5.5     0.013   71   12   WDFN-6 
 Pb-free 
 Halide free 
 Active     Voltage Regulator, LDO, Ultra Low Noise, Ultra Low Iq, 500 mA, 2.8V, WDFN6   Single   Positive   2.8   0.5   5.5   0.23   0.013   71   12   WDFN-6 
 Pb-free 
 Halide free 
 Active     Voltage Regulator, LDO, Ultra Low Noise, Ultra Low Iq, 500 mA, 3.0V, WDFN6   Single   Positive   3   0.5   5.5     0.013   71   12   WDFN-6 
 Pb-free 
 Halide free 
 Active     Voltage Regulator, LDO, Ultra Low Noise, Ultra Low Iq, 500 mA, 3.3V, WDFN6   Single   Positive   3.3   0.5   5.5     0.013   71   12   WDFN-6 
 Pb-free 
 Halide free 
 Active     Voltage Regulator, LDO, Ultra Low Noise, Ultra Low Iq, 500 mA, Adjustable, WDFN6   Single   Positive   Adjustable   0.5   5.5     0.013   71     WDFN-6 
Package Availability
Type
PB free
Standard
WDFN-6 x