Energy Efficient Innovations

Product Overview  


For complete documentation, see the data sheet.

Printed On: 7/11/2015

NCP4687: Linear Voltage Regulator, LDO, High PSRR, 500 mA

Product Description
The NCP4687 is a CMOS 500 mA LDO linear voltage regulator with high output voltage accuracy which features a high ripple rejection, low supply current with low dropout and chip enable with built in low RDS(on)NMOS transistor for fast output capacitor discharging as option. The device is composed of the voltage reference unit, error amplifier, resistor divider for output voltage sensing or precise output voltage setting. The current limit and thermal shutdown makes the device very suitable for industrial applications and portable communication equipments.
Features   Benefits
     
  • ±0.8% Output Voltage Accuracy
 
  • Very accurate output for voltage sensitive products
  • High PSRR of 75 dB
 
  • Very good noise tolerable device for noise sensitive application
  • Output noise of 40 uVrms
 
  • Very good for noise sensitive application.
  • Fast output capacitor discharging option
   
Applications
  • Home Appliances, Industrial Equipment
  • DVBT and DVBS Receivers
  • Car Audio Equipment, Navigation Systems
  • Notebook Adaptors, LCD TVs, Cordless Phones and Private LAN Systems
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, LDO, High PSRR, 500 mA, 1.2V   Single   Positive   1.2   0.5   6   0.35   0.075   75   40   SOT-89-5 
 Pb-free   Active     Linear Voltage Regulator, LDO, High PSRR, 500 mA, 1.5V   Single   Positive   1.5   0.5   6   0.31   0.075   75   40   SOT-89-5 
 Pb-free   Active     Linear Voltage Regulator, LDO, High PSRR, 500 mA, 1.8V   Single   Positive   1.8   0.5   6   0.27   0.075   75   40   SOT-89-5 
 Pb-free   Active     Linear Voltage Regulator, LDO, High PSRR, 500 mA, 2.5V   Single   Positive   2.5   0.5   6   0.23   0.075   75   40   SOT-89-5 
 Pb-free   Active     Linear Voltage Regulator, LDO, High PSRR, 500 mA, 3.3V   Single   Positive   3.3   0.5   6   0.22   0.075   75   40   SOT-89-5 
 Pb-free   Active     Linear Voltage Regulator, LDO, High PSRR, 500 mA, 1.8V   Single   Positive   1.8   0.5   6   0.27   0.075   75   40   XDFN-6 
 Pb-free   Active     Linear Voltage Regulator, LDO, High PSRR, 500 mA, 2.5V   Single   Positive   2.5   0.5   6   0.23   0.075   75   40   XDFN-6 
 Pb-free   Active     Linear Voltage Regulator, LDO, High PSRR, 500 mA, 3.3V   Single   Positive   3.3   0.5   6   0.22   0.075   75   40   XDFN-6 
 Pb-free   Active     Linear Voltage Regulator, LDO, High PSRR, 500 mA, 1.8V   Single   Positive   1.8   0.5   6   0.27   0.075   75   40   SOT-23-5 
 Pb-free   Active     Linear Voltage Regulator, LDO, High PSRR, 500 mA, 2.5V   Single   Positive   2.5   0.5   6   0.23   0.075   75   40   SOT-23-5 
 Pb-free   Active     Linear Voltage Regulator, LDO, High PSRR, 500 mA, 2.8V   Single   Positive   2.8   0.5   6   0.23   0.075   75   40   SOT-23-5 
Package Availability
Type
PB free
Standard
XDFN-6 x  
SOT-23-5 x  
SOT-89-5 x