Energy Efficient Innovations

Product Overview  


For complete documentation, see the data sheet.

Printed On: 7/11/2015

NCP4589: Linear Voltage Regulator, LDO, Tri-Mode, 300 mA

Product Description
The NCP4589 is a CMOS 300mA LDO which switches to a low power mode under light current loads. The device automatically switches back to a fast response mode as the output load increases above 3mA. The device can be placed in permanent fast mode through a mode select pin. NCP4589 comes in two output configurations: standard output and an auto-discharge configuration. The family is available in a variety of packages: SC-70-5 (SC88A), SOT23-5 and a small, ultra thin 1.2x1.2 mm XDFN. Output voltages are available in the range 0.8V to 4.0V in 100mV steps. Contact your local Sales office for a specific output voltage, package and discharge configuration.
Features   Benefits
     
  • Iq is 55uA (typical) or 1.5uA in LP mode
 
  • Trades slower transient response for lower power
  • Good PSRR - 70dB typical
 
  • Excellent ripple rejection
  • Low dropout 230mV typ.
 
  • Extends battery life by excepting lower input voltages, lowers power dissipation.
  • Auto-discharge output available
 
  • Trade off voltage lag vs. time to turn on
Applications   End Products
  • Applications that are usually active but under light load
 
  • Detectors, smoke alarms, HDD
  • Cameras, monitors, LCD TVs
  • Cable Boxes, DVD players, remote controls
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     Linear Voltage Regulator, LDO, Tri-Mode, 300 mA, 1.2 V, Auto-discharge   Single   Positive   1.2   0.3   5.3   0.23   0.055   70   90   XDFN-6 
 Pb-free 
 Halide free 
 Active     Linear Voltage Regulator, LDO, Tri-Mode, 300 mA, 1.8 V, Auto-discharge   Single   Positive   1.8   0.3   5.3   0.23   0.055   70   90   XDFN-6 
 Pb-free 
 Halide free 
 Active     Linear Voltage Regulator, LDO, Tri-Mode, 300 mA, 2.8 V, Auto-discharge   Single   Positive   2.8   0.3   5.3   0.23   0.055   70   90   XDFN-6 
 Pb-free 
 Halide free 
 Active     Linear Voltage Regulator, LDO, Tri-Mode, 300 mA, 3.0 V, Auto-discharge   Single   Positive   3   0.3   5.3   0.23   0.055   70   90   XDFN-6 
 Pb-free 
 Halide free 
 Active     Linear Voltage Regulator, LDO, Tri-Mode, 300 mA, 3.3 V, Auto-discharge   Single   Positive   3.3   0.3   5.3   0.23   0.055   70   90   XDFN-6 
 Pb-free 
 Halide free 
 Active     Linear Voltage Regulator, LDO, Tri-Mode, 300 mA, 1.2V   Single   Positive   1.2   0.3   5.3   0.23   0.055   70   90   SOT-23-5 
 Pb-free 
 Halide free 
 Active     Linear Voltage Regulator, LDO, Tri-Mode, 300 mA, 1.8V   Single   Positive   1.8   0.3   5.3   0.23   0.055   70   90   SOT-23-5 
 Pb-free   Active     Linear Voltage Regulator, LDO, Tri-Mode, 300 mA, 2.5V   Single   Positive   2.5   0.3   5.3   0.23   0.055   70   90   SOT-23-5 
 Pb-free 
 Halide free 
 Active     Linear Voltage Regulator, LDO, Tri-Mode, 300 mA, 3.0V   Single   Positive   3   0.3   5.3   0.23   0.055   70   90   SOT-23-5 
 Pb-free 
 Halide free 
 Active     Linear Voltage Regulator, LDO, Tri-Mode, 300 mA, 3.3V   Single   Positive   3.3   0.3   5.3   0.23   0.055   70   90   SOT-23-5 
Package Availability
Type
PB free
Standard
XDFN-6 x  
SC-88A-5 / SC-70-5 / SOT-323-5 x  
SOT-23-5 x