Energy Efficient Innovations

Product Overview  


For complete documentation, see the data sheet.

Printed On: 7/11/2015

NCP4671: Linear Voltage Regulator, Ultra LDO, Dual Rail, 400 mA

Product Description
The NCP4671 is a CMOS Dual Supply Rail Linear Voltage Regulator designed to provide very low output voltages. The Dual Rail architecture, which separates the power for the LDO control circuitry (provided via the Vbias pin) from the main power path (Vin) offers ultra-low dropout performance, allowing the device to operate from input voltages down to 0.9 V and to generate a fixed high accuracy output voltage as low as 0.6 V. The NCP4671 offers excellent transient response with very low quiescent currents. The family is available in a variety of packages: SC-70, SOT23 and a small, ultra thin 1.2 x 1.2 x 0.4mm XDFN, and comes with a standard enable or an enable plus auto-discharge configuration. Contact your local sales representative for specific package, voltage and enable combinations.
Features   Benefits
     
  • Output Voltage Range: 0.6 to 1.5 V (available at 0.1 steps)
 
  • Capable of driving very low power microprocessors and microcontrollers
  • Regulates input voltages as low as 0.9V
 
  • Maximizes the useful life of batteries
  • Low Quiescent Current: 28 uA typical
 
  • Excellent rejection of noise from the input rail (example from a DC-DC converter)
  • Very Low Dropout: 180 mV Typ. at 400 mA
   
  • High PSRR: 80 dB at 1 kHz
   
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   Active     Linear Voltage Regulator, Ultra LDO, Dual Rail, 400 mA, 0.6V   Single   Positive   0.6   0.4   6   0.18   0.028   80   70   XDFN-6 
 Pb-free   Active     Linear Voltage Regulator, Ultra LDO, Dual Rail, 400 mA, 0.9V   Single   Positive   0.9   0.4   6   0.18   0.028   80   70   XDFN-6 
 Pb-free   Active     Linear Voltage Regulator, Ultra LDO, Dual Rail, 400 mA, 1.2V   Single   Positive   1.2   0.4   6   0.18   0.028   80   70   XDFN-6 
 Pb-free   Active     Linear Voltage Regulator, Ultra LDO, Dual Rail, 400 mA, 1.3V   Single   Positive   1.3   0.4   6   0.18   0.028   80   70   XDFN-6 
 Pb-free   Active     Linear Voltage Regulator, Ultra LDO, Dual Rail, 400 mA, 1.5V   Single   Positive   1.5   0.4   6   0.18   0.028   80   70   XDFN-6 
 Pb-free 
 Halide free 
 Active     Linear Voltage Regulator, Ultra LDO, Dual Rail, 400 mA, Auto-Discharge, 0.6 V   Single   Positive   0.6   0.4   6   0.18   0.028   80   70   SOT-23-5 
 Pb-free 
 Halide free 
 Active     Linear Voltage Regulator, Ultra LDO, Dual Rail, 400 mA, Auto-Diacharge, 0.9 V   Single   Positive   0.9   0.4   6   0.18   0.028   80   70   SOT-23-5 
 Pb-free 
 Halide free 
 Active     Linear Voltage Regulator, Ultra LDO, Dual Rail, 400 mA, Auto-Discharge, 1.0 V   Single   Positive   1   0.4   6   0.18   0.028   80   70   SOT-23-5 
 Pb-free 
 Halide free 
 Active     Linear Voltage Regulator, Ultra LDO, Dual Rail, 400 mA, Auto-Discharge, 1.2 V   Single   Positive   1.2   0.4   6   0.18   0.028   80   70   SOT-23-5 
 Pb-free 
 Halide free 
 Active     Linear Voltage Regulator, Ultra LDO, Dual Rail, 400 mA, Auto-Discharge, 1.3 V   Single   Positive   1.3   0.4   6   0.18   0.028   80   70   SOT-23-5 
 Pb-free 
 Halide free 
 Active     Linear Voltage Regulator, Ultra LDO, Dual Rail, 400 mA, Auto-Discharge, 1.5 V   Single   Positive   1.5   0.4   6   0.18   0.028   80   70   SOT-23-5 
Package Availability
Type
PB free
Standard
XDFN-6 x  
SOT-23-5 x