Energy Efficient Innovations

Product Overview  


For complete documentation, see the data sheet.

Printed On: 7/11/2015

NCV8503: Linear Voltage Regulator, LDO, 400 mA, with Enable, Delay, Adjustable Reset and General Use Comparator

Product Description
The NCV8503 is a family of precision micropower voltage regulators with 400mA output current capability. The family has output voltage options for adjustable, 2.5 V, 3.3 V and 5.0 V that are accurate within ±2.0%. Maximum dropout voltage reaches 0.6 V at full load.

Low quiescent current is a feature drawing only 1µA when device is switched off. This part is ideal for all battery operated microprocessor equipment.
Microprocessor control logic includes as well an active RESET (with DELAY). The active RESET circuit operates correctly at an output voltage as low as 1.0 V. The RESET function is activated during the power up sequence or during normal operation if the output voltage drops below the regulation limits. The reset threshold voltage can be decreased by the connection of external resistor divider to RADJ lead.
The general use comparator (FLAG/Monitor) is referenced to a temperature stable voltage and provides 1.0 mA of drive current at its open collector output. It can be used to provide an early warning signal to the microprocessor of a potential impending RESET signal allowing the microprocessor to finish any signal processing before the RESET shuts it down.

The regulator is protected against reverse battery, short circuit, and thermal overload conditions. The device can withstand load dump transients making it suitable for use in automotive environments.
Features   Benefits
     
  • 2.5V, 3.3V, 5.0V, adjustable ±2% Output voltage / 400mA Output Current
 
  • Tight regulation limits
  • Enable
 
  • Low <1µA Sleep Current allowing low standby battery drain
  • Reset with Adjustable Delay and Threshold
 
  • MPU control - versatile reset control
  • Early Warning through Flag/Monitor leads or General Use Comparator
 
  • System benefits and design flexibility
  • Integrated protections:
    +55V Peak Transient Voltage
    -15V Reverse Voltage
    Short Circuit Protection
    Thermal Overload Protection
 
  • Limit number of external components:
    Robust load dump tolerance
    Reverse battery protection
    Self protection
    Self protection
  • AEC Qualified
   
  • PPAP Capable
   
  • Pb-Free Packages are Available
   
Applications   End Products
  • Engine Control Unit
  • Powertrain
  • Body and Chassis
 
  • Automotive
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
 AEC Qualified 
 PPAP Capable 
 Pb-free 
 Halide free 
 Active     Linear Voltage Regulator, LDO, 400 mA, with Enable, Delay, Adjustable Reset and General Use Comparator, 3.3 V   Single   Positive   3.3   0.4   45   0.4   0.2       SOIC-16W EP 
 AEC Qualified 
 PPAP Capable 
 Pb-free 
 Halide free 
 Active     Linear Voltage Regulator, LDO, 400 mA, with Enable, Delay, Adjustable Reset and General Use Comparator, 5.0 V   Single   Positive   5   0.4   45   0.4   0.2       SOIC-16W EP 
 AEC Qualified 
 PPAP Capable 
 Pb-free 
 Halide free 
 Active     Linear Voltage Regulator, LDO, 400 mA, with Enable, Delay, Adjustable Reset and General Use Comparator, Adjustable   Single   Positive   Adjustable   0.4   45   0.4   0.2       SOIC-16W EP 
Package Availability
Type
PB free
Standard
SOIC-16W EP x x